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Taiwan weather

Weather in Taiwan for September 2025

Your guide to Taiwan weather in September - trends and predictions

    Temperatures

  • So far, September 2025 in Taiwan is slightly warmer than the historical average by 1.9 °C.

  • Expect cooler weather in the next days in Taiwan with the forecast suggesting a temperature of 30.1 °C, lower than the historical average.

  • In general, the average temperature in Taiwan at the beginning of September is 31.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 28.3 °C by the end of September.

    • Rain 🌧️

  • Taiwan experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 192.5 mm.

Average dry days
8
Dry days
Average rainy days
22
Rainy days
Average snowy days
0
Snow days
Average temperatures
31°/23°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Taiwan Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
32°
2
Light rain shower
32°
3
Moderate or heavy rain shower
31°
4
Patchy rain possible
30°
5
Patchy rain possible
33°
6
Patchy rain possible
31°
7
Light rain shower
31°
8
Light rain shower
30°
9
Patchy rain possible
32°
10
Partly cloudy
32°
11
Light rain shower
32°
12
Moderate or heavy rain shower
31°
13
Overcast
31°
14
Cloudy
32°
15
Moderate rain at times
32°
16
Sunny
35°
17
Sunny
35°
18
Sunny
34°
19
Patchy rain possible
33°
20
Patchy rain possible
30°
21
Patchy rain possible
31°
22
Patchy rain possible
31°
23
Heavy rain
26°
24
Heavy rain
27°
25
Patchy rain possible
30°
26
Patchy rain possible
30°
27
Patchy rain possible
29°
28
Patchy rain possible
26°
29
Patchy rain possible
25°
30
Patchy rain possible
31°

What’s the Weather Like in Taiwan This September?

Discover the average temperatures and weather trends across Taiwan’s cities this September.
Patchy rain possibleTaipei31 °C / 23 °CPatchy rain possibleTaichung30 °C / 25 °CPatchy rain possibleKaohsiung30 °C / 27 °CPatchy rain possibleJiufen28 °C / 25 °CPatchy rain possibleAlishan30 °C / 22 °CPatchy rain possibleShifen30 °C / 25 °CPatchy rain possibleTaoyuan City31 °C / 23 °CPatchy rain possibleYangmingshan30 °C / 26 °CPatchy rain possibleHualien City29 °C / 23 °CPatchy rain possibleYilan31 °C / 24 °CPatchy rain possibleNantou31 °C / 24 °CPatchy rain possibleTaitung29 °C / 26 °CMore Locations

Temperatures trend during September in Taiwan

See the weather trend as well as the moving average line

September weather in Taiwan day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 32° /24° 4.2 mm 7
2 Sept. Light rain shower
Light rain shower
 32° /24° 9.7 mm 7
3 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /24° 16.6 mm 7
4 Sept. Patchy rain possible
Patchy rain possible
 30° /23° 25.1 mm 7
5 Sept. Patchy rain possible
Patchy rain possible
 33° /23° 7 mm 7
6 Sept. Patchy rain possible
Patchy rain possible
 31° /24° 5.2 mm 7
7 Sept. Light rain shower
Light rain shower
 31° /23° 5.1 mm 7
8 Sept. Light rain shower
Light rain shower
 30° /22° 13.9 mm 7
9 Sept. Patchy rain possible
Patchy rain possible
 32° /22° 0.6 mm 7
10 Sept. Partly cloudy
Partly cloudy
 32° /22° 0.6 mm 7
11 Sept. Light rain shower
Light rain shower
 32° /23° 6.4 mm 7
12 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /24° 24.7 mm 7
13 Sept. Overcast
Overcast
 31° /23° 12.9 mm 7
14 Sept. Cloudy
Cloudy
 32° /24° 2.6 mm 7
15 Sept. Moderate rain at times
Moderate rain at times
 32° /23° 1.6 mm 7
16 Sept. Sunny
Sunny
 35° /24° 0 mm 2.5
17 Sept. Sunny
Sunny
 35° /24° 0 mm 2.5
18 Sept. Sunny
Sunny
 34° /24° 0 mm 2.4
19 Sept. Patchy rain possible
Patchy rain possible
 33° /25° 0.2 mm 1.7
20 Sept. Patchy rain possible
Patchy rain possible
 30° /25° 2.5 mm 1.8
21 Sept. Patchy rain possible
Patchy rain possible
 31° /24° 0.6 mm 6
22 Sept. Patchy rain possible
Patchy rain possible
 31° /24° 4.2 mm 6
23 Sept. Heavy rain
Heavy rain
 26° /25° 20.1 mm 6
24 Sept. Heavy rain
Heavy rain
 27° /25° 38.5 mm 6
25 Sept. Patchy rain possible
Patchy rain possible
 30° /24° 2.7 mm 6
26 Sept. Patchy rain possible
Patchy rain possible
 30° /25° 2.8 mm 6
27 Sept. Patchy rain possible
Patchy rain possible
 29° /24° 3.5 mm 6
28 Sept. Patchy rain possible
Patchy rain possible
 26° /24° 1.5 mm 6
29 Sept. Patchy rain possible
Patchy rain possible
 25° /24° 3.4 mm 5
30 Sept. Patchy rain possible
Patchy rain possible
 31° /23° 0.1 mm 7
Next
Important Notice
Our weather forecast for Taiwan in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Taiwan forecast closer to your planned date for the most up-to-date weather information.
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Taiwan in September - FAQ

What are the expected maximum and minimum temperatures in Taiwan during September?
During September, expect a variety of temperatures with highs around 31° and lows near 23°, suitable for diverse activities and preferences.
How much rainfall should be expected in Taiwan during September?
Significant rainfall exceeding 192.5 mm is expected in Taiwan during September, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Taiwan during September?
The average wind speed in Taiwan during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Taiwan

Explore the daily rainfall trends and prepare for Taiwans September weather 💧

UV exposure in Taiwan during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Regions in Taiwan
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TaipeiTakao
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AlishanHsinchuHualien CityJiufenKaohsiungKeelungNantouShifenTaichungTainanTaipeiTaitungTaoyuanTaoyuan CityYangmingshanYilan
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Get accurate weather forecasts for Taiwan, located at latitude 25.048 and longitude 121.532. Stay updated with localized weather information tailored for Taiwan.

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