Taipei in May: Hydrangeas, Plum Rain & What to Expect (2026).

Taipei in May is the transition month – spring fading into summer, plum rain season beginning, and hydrangea fields filling at Zhuzihu valley. The weather warms to 25-28 °C, humidity increases, and continuous rain becomes more common in the late month. May is one of the more challenging months for outdoor-focused travel but offers unique flower viewing and lower hotel prices. This 2026 guide covers Taipei in May – weather, hydrangea timing, plum rain reality, and how to plan around it.

The honest framing: May is not a bad month, it is a conditional one. Build the trip around one hero outdoor day and May will punish you. Build it around covered markets, museums, hot springs and a flexible flower morning and May delivers – at prices 20-30% below July and August.

Taipei May Weather

Temperature: Daily average 25-28 °C. Highs 28-31 °C. Lows 23-25 °C. Late-spring warmth.

Humidity: 80-90%. Heavy. Feels hotter than thermometer.

Rain: 12-15 rainy days per month. Plum rain begins. Multi-day rain stretches.

Sunshine: 40-50% sunny days. Cloudy more common.

May feels like early summer – warm, humid, frequently wet. The pleasant spring is ending.

What the official climate normals say

Taiwan’s Central Weather Administration publishes 1991–2020 normals for the Taipei station, and they are worth reading carefully because they contradict a few common assumptions.

Mean temperature: 25.6 °C. Mean daily high: 29.7 °C. Mean daily low: 22.6 °C.

Total rainfall: 225.2 mm – more than double April’s 101.4 mm.

Days with measurable rain: 14.5, which is identical to April.

Mean relative humidity: 74.7%. Sunshine: about 114 hours, roughly 27% of available daylight.

The single most useful fact about May rain

May has the same number of rainy days as April but more than twice the rainfall. Plum rain does not make it rain more often in Taipei – it makes each rain event dramatically heavier. April averages roughly 7 mm per rainy day; May closer to 15 mm. That means fewer ten-minute drizzles you can wait out under an awning, and more sustained hour-long downpours that overflow a gutter and soak your shoes through.

The humidity figure needs a caveat. That 74.7% is a 24-hour average. Early mornings routinely read 85-90%, and the dew point sits in the low twenties, which is why 29 °C in May feels stickier than 29 °C in October. Air conditioning is not a luxury here; it is the pacing mechanism for your day.

Early May versus late May

1–15 May: Often genuinely pleasant. Spring warmth, showers rather than fronts, decent odds of two or three clear days in a row. The better half of the month for hiking and day trips.

16–31 May: The plum rain front usually reaches northern Taiwan in the first half of May and strengthens through the second half. The multi-day grey stretches start here and run into June.

If your dates are flexible, front-load the trip. A first-week-of-May visit is a materially different experience from a last-week one.

Plum Rain Reality

Plum rain (mei yu) – East Asian monsoon – begins in May:

Pattern: Continuous monsoon-style rain over multi-day periods.

Frequency: Most days have some rain. Multi-day stretches of continuous rain common.

Impact on travel: Outdoor activities significantly affected. Indoor backup essential.

Timing in May: Plum rain begins late April/early May. Peaks in June. Tapers in July as typhoon season takes over.

If visiting in May, plan for multi-day rain windows. See our Taipei Rainy Season guide.

What plum rain actually is

The Chinese term is 梅雨 – literally “plum rain”, named for the season when plums ripen. Meteorologically it is a quasi-stationary front where warm wet air from the tropics meets cooler air still sitting over the Asian mainland, and the boundary stalls over Taiwan, Okinawa and southern Japan for days at a time. The CWA broadly treats mid-May to mid-June as the meiyu period, with northern Taiwan seeing the onset earlier than the south.

How plum rain differs from typhoon rain

Plum rain: Grey, persistent, almost no wind. Everything stays open – the MRT runs, restaurants serve, museums are busy. You move around the city normally, you just get wet doing it. It ruins views, not plans.

Typhoon rain: Violent, wind-driven, accompanied by official closures. Trains stop, flights cancel, shops shutter, and a declared typhoon day removes your options entirely.

May sees the first and essentially never the second. A wet May day is an inconvenience you can plan around, not a cancellation.

A practical wet-weather strategy

Check the radar, not the forecast. A rain icon on a seven-day May forecast is meaningless – it will be there every day. The CWA app shows animated rainfall radar, which tells you whether the next two hours are usable.

Plan outdoor mornings. Afternoon convective rain is common even on days that start clear.

Build days as chains of covered stops. Underground malls, arcaded old streets, department stores wired into MRT stations. You can cross much of central Taipei barely getting wet.

Buy a proper umbrella, not the hotel loaner. Convenience stores sell decent compact ones for roughly NT$150-300. Wind is rarely the problem in May; volume of water is.

Pack two pairs of shoes. Nothing dries overnight in 90% morning humidity.

Hydrangea Season

May begins hydrangea peak at Yangmingshan:

Peak bloom: Mid-May through June.

Location: Zhuzihu valley at Yangmingshan. The same valley that hosts calla lilies earlier.

Colors: Blue and pink hydrangeas. Pink-against-grey or blue-against-mountains photography.

How to visit: Bus 260 to Yangmingshan visitor center, then 108 shuttle to Zhuzihu valley.

Best after rain: Wet flowers photograph beautifully. Plum rain accidentally enables great hydrangea photos.

Where Zhuzihu is, and why the flowers grow there

Zhuzihu (竹子湖, “Bamboo Lake”) sits at roughly 600-670 m inside Yangmingshan National Park, in Beitou District. It is a former volcanic barrier-lake basin – the water drained long ago, leaving a flat, cool, mist-prone bowl ringed by mountains. That microclimate runs several degrees cooler than central Taipei and holds moisture, which is exactly what hydrangeas want and exactly why nowhere else near Taipei grows them at this scale.

Timing, and the festival that frames it

The Taipei City Government and the Beitou Farmers’ Association run a combined Zhuzihu Calla Lily and Hydrangea Festival bridging both blooms. In 2026 it ran 13 March to 21 June: calla lilies through March and April, hydrangeas from roughly mid-May to late June. Expect similar dates in future years, but check the festival site before locking in a day – flowers respond to weather, not calendars.

Best window: Roughly 20 May to 15 June for full colour across the valley.

Too early: Before about 10 May you get green heads and a scattering of open blooms.

Too late: Past late June the flowers brown at the edges and farms start cutting back.

Getting to Zhuzihu – the routes that actually work

From MRT Shipai Station (Red line): Bus S8 (小8) direct to Zhuzihu. Route 128 also serves Zhuzihu, but only during the festival period. Shortest hop for most visitors.

From MRT Beitou Station: Bus S9 (小9) or 129 to Zhuzihu.

From MRT Jiantan Station (Red line): Bus R5 (Red 5) or 111 up the mountain, then transfer at the Yangmingshan Transfer Station to 108, 128, 129, S8 or S9.

From Taipei Main Station: Bus 260 to Yangmingshan Terminal, walk to the transfer station, then take 108, 128, 129, 131, S8 or S9.

Total journey time: Budget 60-90 minutes each way from central Taipei, longer on festival weekends.

Route 108 is the park’s internal loop shuttle and the easy way to combine Zhuzihu with Xiaoyoukeng, Qingtiangang and the flower clock in one day. All these buses take an EasyCard; if the system is new to you, our Taipei MRT guide covers how the card works across metro and bus.

The farms, and what they charge

There is no fee to enter Zhuzihu or walk its lanes. The photogenic hillside plots are privately farmed, and each sets its own admission.

Typical entry: Around NT$100-150 per person, and several farms let you redeem the ticket against a drink, an ice cream or a small potted plant – so the real cost often nets out near zero.

Flower picking: Usually a separate charge, commonly NT$100-200 for a small bunch you cut yourself.

Farms to look for: The Gao Family Hydrangea Field (高家繡球花田) is the best known, with tall planted flower walls built specifically for photographs. Several terraced-field farms along Zhuzihu Road offer similar setups.

Prices drift year to year, so treat these as ranges. Most farms prefer cash.

Crowds, and how to miss them

Zhuzihu on a sunny Saturday in late May is one of the most congested places in greater Taipei – standing-room buses, a backed-up access road, and real queues at the flower walls.

Go on a weekday. The single biggest lever. Weekday mornings at the same farms are calm enough to walk straight up to any spot.

Go early. Arrive by 8-9am. Coach groups build from mid-morning.

Go on a grey day. Light drizzle thins the crowd dramatically, and hydrangeas photograph better in flat overcast light than harsh midday sun. Wet petals with mist rolling through the basin is the shot people actually want.

Do not drive. Parking is limited and the access road is single-lane in places. The buses exist for a reason.

What else is in the valley

Zhuzihu is a working farming area, not just a photo stop – known for highland vegetables and for japonica rice introduced during the Japanese era. Small mountain restaurants along the road serve wild vegetable dishes, ginger chicken and hot pot. Give it half a day rather than an hour.

Photo: <a rel="nofollow" class="external text" href="https://web.archive.org/web/20161103110520/http://www.panoramio.com/user/6, CC BY 3.0, via Wikimedia Commons.

Firefly Season: Taipei’s Other May Show

Far fewer visitors know about this one. Taiwan’s firefly season runs roughly mid-April to early May in the Taipei basin, and the city manages several urban habitats for it.

Da’an Forest Park: The best-known city site, built around a restored ecological pond. Early May is usually the peak, and the park runs guided evening walks in season, sometimes in English.

Other sites: Rongxing Garden Park and Muzha Park both host populations, as does Yangmingshan – including around Zhuzihu, which makes an evening extension of a hydrangea day possible.

Best viewing time: Roughly 6-8pm, once full dark settles.

Conditions: Dry, still evenings only. Fireflies do not fly in rain, which is exactly why early May beats late May here.

Etiquette: No white torches, no flash photography, stay on the paths.

Best Things to Do in Taipei in May

1. Hydrangea Viewing at Zhuzihu

The May highlight. Combine with a wider Yangmingshan visit – Xiaoyoukeng’s sulphur vents and the Qingtiangang grassland both sit on the 108 shuttle loop, and both hold up in light rain.

2. Indoor Backup Activities

Museums (National Palace Museum), malls (Mitsukoshi, Eslite Spectrum Songyan), cafes. Plum rain enforces indoor day options. Build at least one full indoor day into any May week.

3. Hot Pot Dinners

Air-conditioned restaurants comfortable during humid May. Multi-hour family meals. Expect roughly NT$400-800 per person at a mid-range all-you-can-eat, more for premium beef.

4. Hot Springs

Counter-intuitively good. Indoor pools at hot spring hotels. Cool indoor spaces. A private room at a Beitou hot spring hotel typically runs NT$800-1,500 for 90 minutes and is entirely weatherproof.

5. Night Markets in Cool Evenings

After-sunset temperatures drop. Night markets more comfortable than mid-day outdoor. Raohe and Ningxia are both compact and largely single-lane, which makes them easier to navigate under an umbrella than sprawling Shilin.

6. Mall Walking

Underground walkways. Air-conditioned escape. Taipei City Mall beneath Taipei Main Station and the Zhongshan Metro Mall together run for kilometres without surfacing.

7. Cafe Culture

Boutique cafes ideal for plum rain days. Long sit-times. Da’an and Zhongshan have the densest concentrations.

8. KTV Karaoke

Private rooms perfect for multi-hour indoor entertainment. Afternoon slots are the cheap ones.

9. Tea Houses at Maokong

The gondola runs in rain, though it closes for lightning and strong wind. A hillside tea house with mist rolling past the window is arguably better in May weather than in clear summer heat.

10. Dadaocheng and Dihua Street

The old merchant street’s arcaded shopfronts mean you can browse dried goods, tea and fabric shops through continuous rain without ever putting an umbrella up.

The May Rainy-Day List

When a front parks over the city for three days, this is what fills the time. Our full rainy day activities guide goes deeper; these are the May-specific picks.

National Palace Museum: Three hours minimum, and the collection rotates, so a repeat visit is not wasted.

Beitou: The strongest single wet-day destination in the city. The Hot Spring Museum, the library, Thermal Valley and a soak all sit within a few hundred metres of MRT Xinbeitou, and rain genuinely improves an outdoor pool.

Department stores and connected malls: Taipei 101 Mall, Breeze Xinyi, Mitsukoshi Xinyi and Eslite Spectrum at Songyan are all MRT-connected or a covered walk apart.

Tea houses: A gongfu tea session in Dadaocheng or on Yongkang Street is a two-hour sit-down, usually NT$300-600, and indifferent to the weather.

Indoor food crawls: Yongkang Street packs beef noodle soup, xiao long bao, scallion pancakes and shaved ice into a few covered blocks.

Cinema: Most international releases screen in the original language with Chinese subtitles. Tickets run roughly NT$300-400.

What to Wear in Taipei in May

Base layer: Light cotton or linen. T-shirts.

Mid layer: Light cardigan for AC indoors.

Outer layer: Compact rain jacket essential.

Bottoms: Light pants or shorts. Quick-dry materials.

Footwear: Waterproof or quick-dry shoes. Sneakers OK but pack a backup pair.

Accessories: Compact umbrella essential. Sunscreen. Hat. Hand sanitizer.

May packing emphasizes rain resistance and quick-dry materials.

The four things people get wrong

A sealed waterproof shell is often the wrong call. At 28 °C and 85% humidity it becomes a sauna. Most residents carry an umbrella and accept being slightly damp. Keep the rain jacket for the mountains.

Leather and suede will suffer. Canvas and synthetic mesh dry; leather does not, and mould is a real risk over a two-week trip.

Indoor air conditioning is aggressive. A thin long-sleeve layer in your day bag stops a 12 °C swing from ruining a meal.

Bring more socks than you think. Two pairs a day is not excessive.

Hotel Strategy for May

Lower-shoulder season pricing. 20-30% below peak summer rates.

Recommended hotels: All categories work. Less competition than peak months.

Last-minute possible: Often available. Plum rain reduces tourism.

Indoor amenities priority: Indoor pool, gym, restaurants. Multi-day rain stretches mean more hotel time.

Location matters more in May than in any other month

In October you can stay anywhere and walk. In May, the trip from the MRT exit to your hotel door in a downpour is what you will remember. Prioritise a direct MRT exit, then a hotel attached to a department store, then a street with continuous arcaded frontage. Zhongshan, Ximending and the Taipei Main Station area score well; hillside boutiques with a charming five-minute approach score badly.

Dates that are not cheap

Labour Day, 1 May: A public holiday in Taiwan. Domestic travel picks up around it.

Second weekend of May: Mother’s Day. Restaurants book out; hotels less so, but expect a busy Sunday everywhere.

Weekends during peak hydrangea bloom: Yangmingshan and Beitou accommodation tightens noticeably from mid-May.

What May Costs, and Whether It Is Good Value

May sits in a genuine shoulder. Airfares typically run well below the July–August and Lunar New Year peaks, hotel rates 20-30% under summer, and the major attractions have short or no queues.

Budget: NT$1,500-2,500 per day – hostel dorm, night market meals, MRT, free attractions.

Mid-range: NT$3,500-6,000 per day – business hotel, restaurant meals, paid attractions, occasional taxi.

Comfortable: NT$8,000 and up – international-brand hotel, hot spring sessions, taxis instead of buses on wet days.

The honest tradeoff: you are buying a discount with weather risk. You will spend more on taxis than planned, you may lose a day trip, and skyline views from Taipei 101 or Elephant Mountain are a coin flip. If your trip is built on ridge hikes and coastal day trips, that discount is not a bargain. If it is built on food, museums, hot springs and neighbourhoods, May is one of the better-value windows in the year.

Getting Around Taipei When It Rains

The MRT is the backbone. Stations have umbrella racks at the entrances, and many central stations connect straight into malls and underground streets.

Taxis are cheap, but scarce in a downpour. Use an app rather than standing at a kerb.

Buses are the weak link. Where one is unavoidable – as for Zhuzihu – check the real-time arrival board before you leave cover.

YouBike is a dry-day tool only. The riverside paths are excellent and unusable in a front.

Convenience stores are infrastructure. 7-Eleven and FamilyMart sell umbrellas, towels, dry socks and hot food. In May they function as rest stops.

Photo: <a href="//commons.wikimedia.org/w/index.php?title=User:Wing1990hk&amp;action=edit&amp;redlink=1" class="new" title="Use, CC BY 3.0, via Wikimedia Commons.

One-Week May Itinerary

Build flexibility around weather:

Day 1: Arrival. Indoor backup if rainy.

Day 2: Yangmingshan + hydrangeas (if dry); Eslite Spectrum + lunch (if wet).

Day 3: City core (Taipei 101, indoor museums, malls).

Day 4: Beitou hot springs full day (works in any weather).

Day 5: Day trip to Jiufen + Shifen (check weather).

Day 6: National Palace Museum + Da’an cafe day.

Day 7: Departure.

Build in 1-2 indoor-focused days; reserve flexibility for outdoor activities.

How to actually use this plan

Do not lock the days into that order. Treat Days 2 and 5 as weather-dependent and Days 3, 4 and 6 as weatherproof, then swap them the night before based on the radar. The rule: the first genuinely clear morning of your trip goes to Zhuzihu, whichever day it lands on.

One caution on Shifen – sky lantern releases are far less atmospheric in rain and the track platform gets slippery. If Day 5 has to run wet, Jiufen alone is the better call: its covered Old Street stairways handle rain well, and mist over the coast there is genuinely beautiful.

What to Avoid in May

Cherry blossom expectations. Cherry season is over.

Yangmingshan peak hiking in heavy rain. Trail closures possible – the national park authority posts current trail and weather status.

Outdoor festivals without weather backup. May events often have rain delays.

Heavy summer clothing only. Layering for AC indoor still useful.

Booking outdoor day trips on heavy rain forecast. Postpone or switch indoor.

Prepaid, date-locked outdoor tours. Pay more for flexible cancellation. In May the option to move a date is worth the premium.

Assuming a sunny morning means a sunny day. Afternoon rain is routine. Front-load everything.

Air-drying laundry in your room. It will not dry. Use a laundromat dryer or the hotel service.

May vs Other Months

vs April: May has hydrangeas; April has calla lilies. May significantly wetter than April – the same rain-day count, but more than double the rainfall.

vs June: June is plum rain peak and adds Dragon Boat Festival. May is the plum rain start – slightly drier, around three degrees cooler, and much better for hiking.

vs July: July is hot, humid summer with real typhoon risk. May is transition – four degrees cooler than July, wetter by rain days, but with no storm-cancellation risk.

vs October: October has tapering typhoons; May has starting plum rain. Both transition months, but October is drier, sunnier and clearly better for outdoor travel.

Short version: May is the best month of the year for flowers and one of the worst for views.

May Festivals and Events

Labour Day (1 May): Public holiday. Offices and banks closed; shops and attractions run normally.

Mother’s Day (Second Sunday): Family-focused. Restaurants heavily booked – reserve for a sit-down dinner.

Yangmingshan Hydrangea Festival: Runs as the second half of the Zhuzihu Calla Lily and Hydrangea Festival, during peak bloom.

Buddha’s Birthday: Taiwan sets the official observance on the second Sunday of May, aligning it with Mother’s Day. The Tzu Chi Foundation holds a large public ceremony on the Chiang Kai-shek Memorial Hall plaza, open to onlookers.

Firefly season walks: Guided evening events at Da’an Forest Park and other city parks, late April into early May.

Spring tea harvest finishes: A good buying window in Maokong and Pinglin.

Dragon Boat Festival approaches: It falls on the fifth day of the fifth lunar month – usually June, occasionally late May. Zongzi appear in markets from mid-May.

Related Taipei guides

• Taipei Weather & Best Time to Visit: Month-by-Month Guide
• Taipei in Spring: Weather, What to Wear & Events
• Taipei in Summer: Heat, Typhoons & Survival Tips
• Taipei in Autumn: The Best Weather of the Year
• Taipei in Winter: Is It Cold? What to Pack
• Taipei in January: Weather, Lunar New Year & Crowds

Frequently Asked Questions

How is the weather in Taipei in May?

Warm and humid – 25-28 °C daily average, 28-31 °C highs. 12-15 rainy days. Plum rain season begins. Indoor backup essential. One of the wetter months.

How much rain actually falls in Taipei in May?

About 225 mm across roughly 14-15 rainy days, according to Central Weather Administration 1991–2020 normals. That is more than double April’s total over the same number of rainy days, which is the clearest way to understand plum rain: not more frequent rain, much heavier rain.

Should I visit Taipei in May?

With caveats. May has hydrangea peak and lower hotel prices. But plum rain affects outdoor activities significantly. Best for travelers comfortable with mixed-weather flexibility. Less ideal than spring (March-April) or autumn (October-November).

When do hydrangeas bloom in Taipei?

Mid-May through June at Zhuzihu valley, Yangmingshan. Blue and pink hydrangeas. Peak photogenic after rain. Multiple paid farms allow picking and viewing. The strongest window is roughly 20 May to 15 June.

How do I get to Zhuzihu from central Taipei?

The simplest route is MRT to Shipai Station, then bus S8 straight to Zhuzihu. From Beitou Station take S9 or 129. From Taipei Main Station take bus 260 to Yangmingshan Terminal and transfer to 108, 128, 129, 131, S8 or S9. Allow 60-90 minutes each way and pay with an EasyCard.

Do the hydrangea farms at Zhuzihu charge admission?

Entering Zhuzihu and walking the lanes is free. The individual hillside farms charge their own admission, typically around NT$100-150, and many let you redeem the ticket against a drink or a small potted plant. Cutting your own bunch usually costs extra, commonly NT$100-200. Bring cash.

What is plum rain in Taipei?

East Asian monsoon affecting Taiwan and Japan in May-June. Continuous monsoon-style rain over multi-day periods. Most days have rain; multi-day stretches common. Outdoor activities significantly impacted. See our Taipei Rainy Season guide.

Is plum rain the same as typhoon rain?

No, and the difference matters. Plum rain is a stalled front – grey, persistent, almost windless, and nothing closes. A typhoon brings destructive wind, cancelled transport and officially declared closure days. May sees plum rain and effectively never sees typhoons.

Are there typhoons in Taipei in May?

Very rarely. The season is generally treated as running July to October, with occasional early storms from June. A May typhoon affecting Taipei is unusual enough that you should not plan around it, though travel insurance is still sensible.

What should I wear in Taipei in May?

Light cotton T-shirts, light cardigan for AC, compact rain jacket essential, quick-dry pants or shorts, waterproof shoes, compact umbrella, sunscreen. May packing emphasizes rain resistance. Pack a second pair of shoes and extra socks – nothing dries overnight in May humidity.

Is May cheaper than other months in Taipei?

Yes. Airfares and hotel rates typically run 20-30% below the July–August peak, queues are short, and last-minute rooms are usually available outside Mother’s Day weekend and peak hydrangea weekends. You are trading weather certainty for that discount.

Can you still see cherry blossoms in Taipei in May?

No. Taipei’s cherry season runs roughly February to March and is long finished by May. Hydrangeas at Zhuzihu are the May equivalent, and the calla lilies in the same valley have usually just ended.

Is May or June better for visiting Taipei?

May, for most travellers. It is around three degrees cooler, marginally drier, and the hydrangeas are at their best. June wins only if you specifically want Dragon Boat Festival, which is worth planning a trip around if the dates line up.

The Bottom Line

Taipei in May is the transition from spring to summer – warm, humid, increasingly rainy. The hydrangea peak at Zhuzihu is the signature May attraction, and a weekday morning in that valley before the coaches arrive is one of the best few hours available anywhere near the city. Build indoor backups into the itinerary, pack rain protection and a spare pair of shoes, front-load toward the first half of the month where you can, and accept that some outdoor plans will be weather-affected. Lower hotel prices, short queues and fewer tourists make May reasonable for travelers willing to navigate the plum rain reality. Spring and autumn remain better for primarily-outdoor visits – but neither has the flowers.