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Weather in Hangzhou for September 2025

Your guide to Hangzhou weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Rainstorm Warning - See hour by hour.

    • Temperatures

  • So far, September 2025 in Hangzhou shows a warmer trend than usual by 2.5 °C.

  • Expect cooler weather in the next days in Hangzhou with the forecast suggesting a temperature of 29.2 °C, lower than the historical average.

  • In general, the average temperature in Hangzhou at the beginning of September is 31.6 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 29.9 °C by the end of September.

    • Rain 🌧️

  • Hangzhou in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 145.5 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
12
Dry days
Average rainy days
18
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
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
32°
2
Moderate or heavy rain shower
31°
3
Moderate or heavy rain shower
30°
4
Overcast
32°
5
Moderate rain at times
32°
6
Patchy rain possible
32°
7
Patchy rain possible
32°
8
Patchy rain possible
33°
9
Moderate or heavy rain shower
31°
10
Light rain shower
31°
11
Light rain shower
31°
12
Patchy rain possible
32°
13
Moderate or heavy rain shower
28°
14
Heavy rain at times
27°
15
Overcast
27°
16
Weather Alert Patchy rain possible
36°
17
Weather Alert Moderate rain
34°
18
Moderate rain
25°
19
Patchy rain possible
28°
20
Patchy rain possible
26°
21
Patchy rain possible
27°
22
Patchy rain possible
27°
23
Patchy rain possible
27°
24
Patchy rain possible
29°
25
Patchy rain possible
26°
26
Partly cloudy
30°
27
Sunny
32°
28
Sunny
32°
29
Sunny
30°
30
Overcast
30°

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° 0.4 mm 7
2 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /23° 4.9 mm 7
3 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /23° 11.2 mm 7
4 Sept. Overcast
Overcast
 32° /24° 4.2 mm 7
5 Sept. Moderate rain at times
Moderate rain at times
 32° /24° 3.7 mm 7
6 Sept. Patchy rain possible
Patchy rain possible
 32° /23° 1.8 mm 7
7 Sept. Patchy rain possible
Patchy rain possible
 32° /22° 1.3 mm 7
8 Sept. Patchy rain possible
Patchy rain possible
 33° /22° 1.7 mm 7
9 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /22° 5.4 mm 7
10 Sept. Light rain shower
Light rain shower
 31° /22° 7.3 mm 7
11 Sept. Light rain shower
Light rain shower
 31° /22° 5.5 mm 7
12 Sept. Patchy rain possible
Patchy rain possible
 32° /23° 3.4 mm 7
13 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /22° 25.7 mm 6
14 Sept. Heavy rain at times
Heavy rain at times
 27° /22° 14.4 mm 6
15 Sept. Overcast
Overcast
 27° /22° 11.8 mm 6
16 Sept. Patchy rain possible
Patchy rain possible
 36° /26° 1.7 mm 2.2
17 Sept. Moderate rain
Moderate rain
 34° /25° 14.1 mm 1.8
18 Sept. Moderate rain
Moderate rain
 25° /23° 7.6 mm 0.2
19 Sept. Patchy rain possible
Patchy rain possible
 28° /22° 0.4 mm 0.7
20 Sept. Patchy rain possible
Patchy rain possible
 26° /22° 0.8 mm 0.3
21 Sept. Patchy rain possible
Patchy rain possible
 27° /22° 0.4 mm 5
22 Sept. Patchy rain possible
Patchy rain possible
 27° /20° 1.5 mm 5
23 Sept. Patchy rain possible
Patchy rain possible
 27° /22° 3.4 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
 29° /23° 3 mm 6
25 Sept. Patchy rain possible
Patchy rain possible
 26° /23° 0.8 mm 5
26 Sept. Partly cloudy
Partly cloudy
 30° /23° 0 mm 7
27 Sept. Sunny
Sunny
 32° /24° 0 mm 7
28 Sept. Sunny
Sunny
 32° /24° 0 mm 7
29 Sept. Sunny
Sunny
 30° /24° 0 mm 7
30 Sept. Overcast
Overcast
 30° /21° 0.6 mm 7
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
‹
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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°
Rainfall187 mm145 mm67 mm
Wind12.1 km/h14.1 km/h13.1 km/h
Humidity75%80%73%
Rainy days25 days18 days15 days
Dry days6 days12 days16 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 145.5 mm is expected in Hangzhou during September, occurring over more than 18 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.

What to pack to Hangzhou in September?

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.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
    • Sandals/Flip-flops: Comfortable for warm climates
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips

September rainfall patterns in Hangzhou

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

UV exposure in Hangzhou during September

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

Quick links

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Location coordinates Where is Hangzhou?

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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