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Weather in Hangzhou for September 2026

Your guide to Hangzhou weather in September - trends and predictions

    Official Weather Alert ⚠️

  • 森林（草原）火险 - See hour by hour.

    • Temperatures

  • Until now, September 2026 in Hangzhou is cooler than usual, with temperatures averaging 27.8 °C, this is 3.1 °C below the typical seasonal average.

  • Expect cooler weather in the next days in Hangzhou with the forecast suggesting a temperature of 28.1 °C, lower than the historical average.

  • In general, the average temperature in Hangzhou at the beginning of September is 31.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 29.1 °C by the end of September.

    • Rain 🌧️

  • Hangzhou experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 144.7 mm.

    • More

  • Is September a good time to visit Hangzhou? check out the best time to travel to Hangzhou page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
5
Dry days
Average rainy days
25
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/22°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Hangzhou Weather September

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

Temperatures trend during September in Hangzhou

See the weather trend as well as the moving average line

September weather in Hangzhou 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° /23° 1.1 mm 7
2 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /23° 7 mm 6
3 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /23° 11.6 mm 6
4 Sept. Overcast
Overcast
 31° /24° 5.4 mm 6
5 Sept. Moderate rain at times
Moderate rain at times
 31° /23° 3.7 mm 6
6 Sept. Patchy rain possible
Patchy rain possible
 32° /23° 1.8 mm 7
7 Sept. Patchy rain possible
Patchy rain possible
 32° /22° 1.4 mm 7
8 Sept. Patchy rain possible
Patchy rain possible
 32° /22° 1.5 mm 7
9 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /22° 4.9 mm 6
10 Sept. Partly cloudy
Partly cloudy
 30° /21° 6 mm 8
11 Sept. Light rain shower
Light rain shower
 30° /22° 5 mm 6
12 Sept. Patchy rain possible
Patchy rain possible
 31° /22° 2.9 mm 7
13 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /22° 21.5 mm 7
14 Sept. Patchy rain possible
Patchy rain possible
 28° /21° 3.1 mm 7.8
15 Sept. Smoky haze
Smoky haze
 28° /20° 0.2 mm 7.8
16 Sept. Smoky haze
Smoky haze
 27° /19° 0 mm 7.9
17 Sept. Smoky haze
Smoky haze
 27° /21° 0 mm 2.6
18 Sept. Overcast
Overcast
 23° /21° 0.1 mm 6
19 Sept. Sunny
Sunny
 30° /20° 1.8 mm 7
20 Sept. Patchy rain possible
Patchy rain possible
 28° /21° 0.4 mm 7
21 Sept. Sunny
Sunny
 28° /20° 0 mm 7
22 Sept. Sunny
Sunny
 29° /21° 0 mm 7
23 Sept. Sunny
Sunny
 28° /20° 0 mm 7
24 Sept. Sunny
Sunny
 29° /20° 0 mm 7
25 Sept. Sunny
Sunny
 28° /21° 0 mm 7
26 Sept. Sunny
Sunny
 32° /21° 0.7 mm 8
27 Sept. Patchy rain possible
Patchy rain possible
 28° /22° 0.9 mm 6
28 Sept. Patchy rain possible
Patchy rain possible
 30° /21° 1.5 mm 7
29 Sept. Moderate rain at times
Moderate rain at times
 28° /21° 2.9 mm 6
30 Sept. Light rain shower
Light rain shower
 29° /21° 0.9 mm 6
Next
Important Notice
Our weather forecast for Hangzhou 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 Hangzhou forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Hangzhou weather in September vs August vs October

Compare September weather in Hangzhou with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures34°/25°29°/22°23°/16°
Rainfall161 mm145 mm64 mm
Wind12.2 km/h13.6 km/h13.1 km/h
Humidity74%80%73%
Rainy days28 days25 days16 days
Dry days3 days5 days15 days

Planning a trip to Hangzhou? Discover the best time to visit

Hangzhou in September - FAQ

What are the expected maximum and minimum temperatures in Hangzhou during September?
During September, expect a variety of temperatures with highs around 29° and lows near 22°, suitable for diverse activities and preferences.

How much rainfall should be expected in Hangzhou during September?
Significant rainfall exceeding 144.7 mm is expected in Hangzhou during September, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Hangzhou during September?
The average wind speed in Hangzhou during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Hangzhou

Explore the daily rainfall trends and prepare for Hangzhous September weather 💧
Typically, Hangzhou has 25 rainy days in September with a total of 144.7 mm of rainfall.

UV exposure in Hangzhou during September

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

What to pack to Hangzhou in September?

🌦️ Warm & sunny · highs around 29 °C, frequent showers

As you prepare for your trip to Hangzhou in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Hangzhou, during September, is comfortable and enjoyable, regardless of the weather conditions.

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🧥 Clothing

👟 Footwear

🎒 Accessories

🧴 Personal Items

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Get accurate weather forecasts for Hangzhou, located at latitude 30.294 and longitude 120.161. Stay updated with localized weather information tailored for Hangzhou.

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