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Weather in Alishan for September 2025

Your guide to Alishan weather in September - trends and predictions

    Temperatures

  • The forecast for the next days in Alishan predicts temperatures to be around 30 °C, close to the historical average.

  • In general, the average temperature in Alishan at the beginning of September is 31 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 30.4 °C by the end of September.

    • Rain 🌧️

  • Alishan experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 217.2 mm.

Average dry days
6
Dry days
Average rainy days
24
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/22°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Alishan Weather September

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

Temperatures trend during September in Alishan

See the weather trend as well as the moving average line

September weather in Alishan 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
 31° /21° 2.9 mm 7
2 Sept. Light rain shower
Light rain shower
 32° /22° 1.3 mm 7
3 Sept. Patchy light drizzle
Patchy light drizzle
 32° /21° 1.7 mm 7
4 Sept. Light rain shower
Light rain shower
 32° /24° 2.6 mm 7
5 Sept. Light rain shower
Light rain shower
 30° /21° 3.1 mm 7
6 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /21° 12.2 mm 6
7 Sept. Heavy rain
Heavy rain
 31° /22° 61 mm 1.9
8 Sept. Moderate rain
Moderate rain
 31° /21° 11 mm 2.6
9 Sept. Moderate rain
Moderate rain
 30° /21° 9.5 mm 2.3
10 Sept. Moderate rain
Moderate rain
 31° /21° 7.4 mm 2.1
11 Sept. Moderate rain
Moderate rain
 29° /22° 6.8 mm 5
12 Sept. Patchy rain possible
Patchy rain possible
 29° /21° 1.5 mm 6
13 Sept. Patchy rain possible
Patchy rain possible
 30° /21° 1.5 mm 6
14 Sept. Patchy rain possible
Patchy rain possible
 30° /21° 2.6 mm 6
15 Sept. Patchy rain possible
Patchy rain possible
 28° /23° 1.5 mm 6
16 Sept. Patchy rain possible
Patchy rain possible
 30° /24° 1.1 mm 6
17 Sept. Patchy rain possible
Patchy rain possible
 31° /24° 0.5 mm 6
18 Sept. Patchy rain possible
Patchy rain possible
 32° /22° 0.8 mm 6
19 Sept. Patchy rain possible
Patchy rain possible
 31° /25° 0.2 mm 6
20 Sept. Light rain shower
Light rain shower
 29° /21° 9 mm 6
21 Sept. Light rain shower
Light rain shower
 29° /21° 4.1 mm 6
22 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 25° /21° 30.4 mm 5
23 Sept. Light rain shower
Light rain shower
 30° /20° 9.3 mm 7
24 Sept. Light rain shower
Light rain shower
 30° /20° 16.8 mm 7
25 Sept. Patchy light drizzle
Patchy light drizzle
 30° /24° 3.7 mm 7
26 Sept. Patchy rain possible
Patchy rain possible
 31° /23° 4.1 mm 7
27 Sept. Light rain shower
Light rain shower
 31° /24° 6.4 mm 7
28 Sept. Light rain shower
Light rain shower
 30° /24° 4.1 mm 7
29 Sept. Light rain shower
Light rain shower
 29° /20° 4.6 mm 6
30 Sept. Patchy rain possible
Patchy rain possible
 32° /21° 0.1 mm 7
Next
Important Notice
Our weather forecast for Alishan 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 Alishan forecast closer to your planned date for the most up-to-date weather information.
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Alishan in September - FAQ

What are the expected maximum and minimum temperatures in Alishan during September?
During September, expect a variety of temperatures with highs around 30° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Alishan during September?
Significant rainfall exceeding 217.2 mm is expected in Alishan during September, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Alishan during September?
The average wind speed in Alishan during September is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Alishan

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

UV exposure in Alishan during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Alishan?

Get accurate weather forecasts for Alishan, located at latitude 23.515 and longitude 120.81. Stay updated with localized weather information tailored for Alishan.

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