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Best time to visit · Taiwan

Best Time to Visit Tainan

November – March are the best time to visit Tainan on the climate data: January scores 86/100, with highs around 70°F (21°C) and 1.5 in (39 mm) of rain. April and October are good shoulder-season months. The toughest months are June – August, mainly because of rain.

Tainan, Taiwan
Best months
Nov – Mar
Shoulder
Apr and Oct
Toughest
Jun – Aug
Warmest
Jul · 85°F
Coldest nights
Jan · 64°F
Wettest
Aug · 17.4 in
Driest
Feb · 1.2 in

Tainan weather by month

Highs run from 70°F to 85°F across the year, and the yearly total is about 74.4 in (1890 mm) of rain.

50°59°68°77°86°70°Jan72°Feb75°Mar79°Apr83°May84°Jun85°Jul85°Aug84°Sep81°Oct78°Nov73°Dec0225450
Daily low → high (°F)Monthly rain (mm, right axis)Best months
Monthly climate averages for Tainan, 2001–2025
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Avg high70°F21°C72°F22°C75°F24°C79°F26°C83°F28°C84°F29°C85°F30°C85°F29°C84°F29°C81°F27°C78°F26°C73°F23°C
Avg low64°F18°C65°F18°C68°F20°C73°F23°C78°F25°C81°F27°C82°F28°C82°F28°C80°F27°C76°F25°C73°F23°C67°F19°C
Rain1.5 in39 mm1.2 in31 mm1.9 in48 mm3.1 in79 mm8.8 in223 mm13.5 in344 mm11.4 in289 mm17.4 in441 mm9.5 in242 mm2.8 in72 mm1.9 in49 mm1.3 in33 mm
Humidity77%78%77%79%82%85%83%84%83%80%78%76%
Cloud57%55%60%62%66%67%64%70%64%55%56%58%
Comfort868684785343434247798486

Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. The grid cell sits at about 2 m (7 ft), close to Tainan's own ~28 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.

How we pick the best months

  • Temperature (40 pts): full marks for average daytime highs of 64–81°F (18–27°C); minus 3 points per °C below and 4 per °C above.
  • Rain (25 pts): full marks up to 40 mm (1.6 in) a month, falling to zero at 250 mm (9.8 in).
  • Humidity (15 pts): only counts when it is warm (mean above 18°C); minus 0.75 points per % above 70% relative humidity.
  • Cloud (20 pts): full marks at 30% cloud cover or less, falling to zero at 90%.
Best months: within 6 points of the top (or 85+). Shoulder: within 18 and at least 45. Toughest: within 6 of the lowest. Comfort only; crowds, prices, festivals and openings aren't scored.

Tainan season by season

Close to the tropics, rain does as much as temperature to shape the year in Tainan.

Drier months Oct – Mar

Expect steady highs of 70–81°F (21–27°C). It's the driest half, with only about 10.7 in (272 mm) of rain, 14% of the year's total. February & March and October – December feel humid, with humidity near 78%. November – March are among the best-scoring months (season average 84/100).

Wetter months Apr – Sep

Temperatures hold fairly even, with highs of 79–85°F (26–30°C). It's the wettest half, with about 63.7 in (1618 mm) of rain, 86% of the year's total. April – September feel humid, with humidity near 79%. It holds the toughest stretch on our comfort score (June – August), averaging 51/100.

What our curated routes say

Plan by month

By comfort score: 7 Great, 2 Fair and 3 Tough. Great months: October – April. Tap a month for its own guide.

Tainan weather questions

When is the best time to visit Tainan?

November – March are the best time to visit Tainan on the climate data: January scores 86/100, with highs around 70°F (21°C) and 1.5 in (39 mm) of rain. April and October are good shoulder-season months. The toughest months are June – August, mainly because of rain.

What is the rainiest month in Tainan?

August is the wettest month, averaging about 17.4 in (441 mm) of rain. February is the driest, with about 1.2 in (31 mm). The yearly total is around 74.4 in (1890 mm).

What is the coldest month in Tainan?

January is the coldest, with average lows of 64°F (18°C) and highs of 70°F (21°C). The warmest is July, with average highs of 85°F (30°C).

Is Tainan humid?

Yes for much of the year: humidity averages 80% annually, and February – December combine warmth with 75%+ humidity, which feels sticky.

When is the rainy season in Tainan?

The wettest three-month stretch is June – August, with about 42.3 in (1074 mm) of rain combined. The driest stretch is December – February, with about 4.1 in (103 mm).

Weather nearby

Routes and legs

Pick your Tainan dates together

Poll the group on November – March dates, then plan the days, packing and costs together.

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