Tainan weather in October

October in Tainan: sweltering, rainy, with muggy air — a gamble, with sticky heat.

Updated September 2026 · climate normals from ERA5 reanalysis

Tainan🇹🇼 Taiwan · Taiwan & Okinawa · City64
  1. 85Jan
  2. 91Feb
  3. 82Mar
  4. 71Apr
  5. 52May
  6. 41Jun
  7. 45Jul
  8. 39Aug
  9. 55Sep
  10. 64Oct
  11. 76Nov
  12. 88Dec

#7 of 12 months in Tainan · #1070 of 1413 destinations to visit in October · comfort 64/100 (tier C)

Days
30°C
Nights
24°C
Wet days
8
Sun
9.4 h
Humidity
82%
Daylight
12 h
Tainan, Taiwan
Photo: Alan Wang · Pexels

Traveller notes on Tainan in October

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.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Tainan's card on the map.

Tainan climate normals — October

Daytime high30°C / 86°F🔥 sweltering
Nighttime low24°C / 76°F
Feels like (high)34°C / 93°F
Sea temperature29°C / 83°F♨️ bath-warm
Rainfall108 mm / 4.2 in🌧 rainy
Rainy days8 days
Humidity82%💦 very humid
Dew point22°C / 71°F
Sunshine9.4 h/day
Daylight11.6 h
Wind13 km/h / 8 mph
Air quality (US AQI)88🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Tainan in October

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 3 of the markets that fill it, an ordinary month(estimated)

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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.

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Best weatherFair weatherToughest weather

What's on in Tainan in October

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Typhoon season

    1 Jul – 15 Oct · usuallyClosures

    Fewer direct hits than the east coast, but the flooding is the problem here rather than the wind. A declared typhoon day closes everything, including the temples. Source ↗

  • Nature

    Black-faced spoonbills at Qigu

    1 Oct – 31 Mar · usuallyBirdlife season

    The 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 season

    Southern 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.

What's on around the world in October →

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?

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Tainan in October — FAQ

Is October a good time to visit Tainan?
October in Tainan: sweltering, rainy, with muggy air — a gamble, with sticky heat. It ranks #7 of 12 months for Tainan on SeasonMap's comfort score (64/100).
What is the weather like in Tainan in October?
In October, Tainan averages a daily high of 30.1°C and a low of 24.4°C, with about 107.6 mm of rain over roughly 7.6 rainy days.
What is the air quality in Tainan in October?
Tainan has a mean US Air Quality Index of about 88 in October.

Within 300 km: Sun Moon Lake's Cross-lake Swimming Carnival around 10 Sep – 5 Oct, and Kenting's Raptor migration around 25 Sep – 25 Oct.