Tainan weather in March
March in Tainan: warm, a little rain, with muggy air — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#4 of 12 months in Tainan · #445 of 1413 destinations to visit in March · comfort 82/100 (tier A)
- Days
- 26°C
- Nights
- 19°C
- Wet days
- 9
- Sun
- 9.7 h
- Humidity
- 78%
- Daylight
- 12 h

Traveller notes on Tainan in March
Notes from nearby Alishan (83 km away)
Tainan doesn't have its own notes for March yet — these are about Alishan, close enough to share the season.
Alishan-forum threads on March weather describe daytime readings as generally mild but genuinely cold at night, posters citing single-digit overnight lows especially when a system moves through the wider region. Regulars call parka-style layers and proper thermal wear standing advice, mornings and right after sunset both considerably colder than the daytime reading suggests. Posters describe the famous sunrise viewpoint as running noticeably colder still, its higher elevation meaning conditions there rarely match a general Alishan forecast. Regulars call March genuinely good timing for cherry blossoms, the bloom regularly overlapping with this stretch. Posters describe fog and a passing shower as fairly common in the mountains despite the otherwise favorable reputation. Regulars recommend real cold-weather layers regardless of the lowland forecast. The record: 14.9C days feeling like 15C, 7.4C nights, an extraordinarily high 137.6mm across over 21 days and 80 percent humidity.
Other months in Tainan
Forum posters describe July and August as Taiwan's hottest months, typically 33-36C with high humidity, and afternoon thundershowers a regular feature of the June-August stretch. Posters are consistent that August sits within typhoon season (June-October), with August, July and September the three months most likely to see a storm make landfall - roughly three to four typhoons affect Taiwan in an average season, and a direct hit during a trip can cost travelers one to two disrupted days. Posters are equally clear that summer travel remains genuinely popular despite the heat, pointing to Taiwan's excellent air-conditioned MRT, malls and convenience stores, plus shaved ice and bubble tea on seemingly every corner, as real relief options. Posters generally rate August as hot, humid and typhoon-season for Tainan, entirely workable with flexible plans and frequent air-conditioned breaks.
Forum posters describe February in southern Taiwan as cool and pleasant, typically 15-20C, milder than the 10-15C posters report further north - winter here is generally mild outside the high mountains. It's not officially the rainy season, but posters note rain remains a real possibility on any given day, so a light jacket that also handles rain is standard packing advice. Cold fronts can occasionally push temperatures down to around 6C for a couple of days, a real but temporary dip rather than the norm. Posters describe February overall as the tail end of winter with spring clearly approaching, milder than most visitors expect coming from more northerly climates.
Add your own note from Tainan's card on the map.
Tainan climate normals — March
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Tainan in March
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 2 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Tainan's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherTainan's weather peaks December–February.
Best weatherFair weatherToughest weather
What's on in Tainan in March
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Yanshui Beehive Fireworks
5 Feb – 10 Mar · usuallyLights & fireRiskRacks of bottle rockets fired horizontally into the crowd at Yanshui on Lantern Festival night. Helmet, thick jacket and a towel round the neck are the standard kit, not a joke. Source ↗
- Nature
Black-faced spoonbills at Qigu
1 Oct – 31 Mar · usuallyBirdlife seasonThe lagoons and old salt pans north of the city hold the largest share of the world's black-faced spoonbills every winter. They arrive in October and are gone by the end of March. Source ↗
- Season
The dry half of the year
15 Oct – 15 Apr · usuallyDry seasonSouthern Taiwan barely rains for six months, and this is when the old capital is at its best for walking between temples. The catch is the air, which stagnates in the same months.
Nearby, and something's on
Within 300 km of Tainan — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Tainan?
Tainan in March — FAQ
- Is March a good time to visit Tainan?
- March in Tainan: warm, a little rain, with muggy air — an excellent time to visit. It ranks #4 of 12 months for Tainan on SeasonMap's comfort score (82/100).
- What is the weather like in Tainan in March?
- In March, Tainan averages a daily high of 25.5°C and a low of 18.9°C, with about 57.9 mm of rain over roughly 8.6 rainy days.
- What is the air quality in Tainan in March?
- Tainan has a mean US Air Quality Index of about 94 in March.
Within 300 km: Alishan's Alishan Cherry Blossom Festival around 10 Mar – 10 Apr, and Sun Moon Lake's Cherry blossom around 1 Feb – 5 Mar.