Is It Monsoon in Tainan, Taiwan? Rainfall and Weather by Month

Tainan, Taiwan JANUARY
19°
★★★
Shoulder season
14° to 23°
Driest Month
The driest month of the year, part of the long dry season.
☀️ Sunscreen✨ Best sightseeing weather
19°
★★★
Shoulder season
14° to 24°
Dry & Mild
Still very dry and mild, part of the long dry season.
☀️ Sunscreen✨ Best sightseeing weather
22°
★★★
Shoulder season
17° to 26°
Warming Up
Warming up, still comparatively dry.
🥵 Heat protection☀️ Sunscreen
25°
★★★
Shoulder season
21° to 29°
Showers Increase
Showers begin to increase as the dry season winds down.
🥵 Heat protection☔ Light rain jacket
27°
★★★
Shoulder season
23° to 31°
Hottest Month
Among the hottest months of the year, before the summer sea breeze sets in.
🥵 Heat protection☔ Umbrella handy
28°
★★★
Off-peak season
25° to 32°
Rains Arrive
Rain increases sharply, hot and humid with the summer sea breeze now blowing.
☔ Heavy rain gear🌀 Typhoon season
29°
★★★
Off-peak season
25° to 32°
Very Wet
Among the wettest months of the year, with typhoon risk elevated.
☔ Heavy rain gear🌀 Typhoon season
28°
★★★
Off-peak season
25° to 31°
Wettest Month
The rainiest month of the year, with the highest typhoon risk.
☔ Heavy rain gear🌀 Typhoon season
28°
★★★
Shoulder season
24° to 32°
Rain Eases
Rain eases back from the peak of summer, still humid.
☔ Umbrella essential🥵 Heat protection
26°
★★★
Peak season
22° to 30°
Dry Season Returns
The dry season firmly returns, comfortable and sunny.
☀️ Sunscreen✨ Best sightseeing weather
23°
★★★
Peak season
19° to 28°
Dry & Pleasant
Dry and pleasant, part of the calmest stretch of the year.
☀️ Sunscreen✨ Best sightseeing weather
20°
★★★
Peak season
16° to 25°
Cool & Dry
Cool and dry, part of the calmest stretch of the year.
🧥 Light layers for evenings☀️ Sunscreen
Drag through the year Jan
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
⭐️
Oct
⭐️
Nov
⭐️
Dec
This month
Rainfall
15 mm
4 rainy days this month
Sunshine
6 hrs/day
46% of daylight hours
Humidity
77%
Air feels heavy and sticky
Wind
12 km/h
Light, barely noticeable
Rainfall
30 mm
5 rainy days this month
Sunshine
5.5 hrs/day
42% of daylight hours
Humidity
75%
Air feels heavy and sticky
Wind
12 km/h
Light, barely noticeable
Rainfall
41 mm
5 rainy days this month
Sunshine
6 hrs/day
46% of daylight hours
Humidity
76%
Air feels heavy and sticky
Wind
10 km/h
Light, barely noticeable
Rainfall
79 mm
7 rainy days this month
Sunshine
6 hrs/day
46% of daylight hours
Humidity
76%
Air feels heavy and sticky
Wind
10 km/h
Light, barely noticeable
Rainfall
175 mm
9 rainy days this month
Sunshine
6 hrs/day
46% of daylight hours
Humidity
79%
Air feels heavy and sticky
Wind
8 km/h
Light, barely noticeable
Rainfall
371 mm
13 rainy days this month
Sunshine
6 hrs/day
46% of daylight hours
Humidity
81%
Air feels heavy and sticky
Wind
8 km/h
Light, barely noticeable
Rainfall
361 mm
12 rainy days this month
Sunshine
7 hrs/day
54% of daylight hours
Humidity
81%
Air feels heavy and sticky
Wind
8 km/h
Light, barely noticeable
Rainfall
396 mm
15 rainy days this month
Sunshine
6 hrs/day
46% of daylight hours
Humidity
83%
Air feels heavy and sticky
Wind
8 km/h
Light, barely noticeable
Rainfall
180 mm
10 rainy days this month
Sunshine
6 hrs/day
46% of daylight hours
Humidity
79%
Air feels heavy and sticky
Wind
8 km/h
Light, barely noticeable
Rainfall
30 mm
3 rainy days this month
Sunshine
6.5 hrs/day
50% of daylight hours
Humidity
76%
Air feels heavy and sticky
Wind
10 km/h
Light, barely noticeable
Rainfall
15 mm
2 rainy days this month
Sunshine
6 hrs/day
46% of daylight hours
Humidity
76%
Air feels heavy and sticky
Wind
10 km/h
Light, barely noticeable
Rainfall
15 mm
3 rainy days this month
Sunshine
5.5 hrs/day
42% of daylight hours
Humidity
76%
Air feels heavy and sticky
Wind
12 km/h
Light, barely noticeable
★★★ peak season, ★★☆ decent shoulder months, ★☆☆ true off-peak, based on rain frequency, heat, and haze.
Seasons at a glance
🌟
Peak season: Oct, Nov, Dec
Tainan's dry season and the best time for a visit. October through December is historically the calmest stretch of a longer dry season that runs all the way to March.
🌤️
Shoulder season: Jan, Feb, Mar, Apr, May, Sep
This tier spans January through May, plus September. Showers begin to increase from April, and the year's hottest days typically arrive in May and June, before the summer sea breeze sets in.
☔
Off-peak season: Jun, Jul, Aug
The heart of Tainan's rainy season. June through August sees the heaviest rain of the year, with August historically the wettest month.
Good to know
☀️
A long dry season, October to March
Tainan's dry season is one of the longest and most reliable in Taiwan, with showers only beginning to pick up again in April.
🌊
Summer sea breeze keeps the heat in check
Tainan's hottest days typically occur in May and June, before the prevailing southwest wind off the sea arrives and keeps summer temperatures slightly milder than the pre-monsoon peak.
🥶
Winter can occasionally turn cold
Average January highs are around 23°C, though during the coldest winters, temperatures have dropped as low as 5°C.
🏛️
Taiwan's oldest city
Tainan served as Taiwan's capital for over 200 years under Dutch, Ming, and Qing rule, and remains rich in historic sites.
🌀
Typhoons can affect Tainan
Taiwan is one of the countries most affected by typhoons, typically from June through October, most frequent from mid-July to early October.
Top attractions
1
Anping Old Fort
A 17th-century Dutch colonial fort, among the oldest European structures still standing in Taiwan.
2
Chihkan Tower
A historic fort and temple complex built on the site of a former Dutch trading post, at the heart of the old city.
3
Tainan's Street Food Scene
Night markets and long-standing family-run stalls make Tainan widely regarded as one of Taiwan's best food cities.
Frequently asked questions
When is monsoon season in Tainan?›
Tainan's rainy season historically runs from June through August, with August the wettest month, averaging around 396mm of rain.
What is the best time of year to visit Tainan?›
October through March is historically Tainan's dry season, with October through December historically the calmest stretch.
What is the least favorable time to visit Tainan?›
June through August is historically the wettest stretch of the year.
Which month has the most rain in Tainan?›
August is historically the wettest month, averaging around 396mm of rain.
Which month is the driest in Tainan?›
January is historically the driest month, averaging around 15mm of rain.
How hot does Tainan get?›
May and June are historically the hottest months, reaching around 34°C, before the summer sea breeze arrives and moderates the heat slightly.
Does it get cold in Tainan?›
Winters are generally mild, with highs around 23°C in January, though during the coldest winters, temperatures have dropped as low as 5°C.
What should I pack for Tainan?›
Spring or autumn clothing with a light jacket for winter, and lightweight, tropics-friendly clothing with a light raincoat or umbrella for the summer rains.
Does Tainan get typhoons?›
Yes. Taiwan is one of the countries most affected by typhoons, typically from June through October, most frequent from mid-July to early October.
Is Tainan sunnier than Taipei in winter?›
Yes. Tainan and the south generally see a drier, sunnier winter than Taipei and the north, which stays cloudier under the winter monsoon.