Hangzhou
September
Weather in Hangzhou for September 2025
Your guide to Hangzhou weather in September - trends and predictions
In general, the average temperature in Hangzhou at the beginning of September is 33.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 27.3 °C by the end of September.
Expect significant rainfall in Hangzhou during September, with an average of 20 rainy days.
Is September a good time to visit Hangzhou? check out the best time to travel to Hangzhou page.
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10
Dry days
20
Rainy days
0
Snow days
30°/24°
Temperatures
15 km/h
Avg max wind
82 %
Avg humidity
Hangzhou in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  36° | 2 36° | 3  32° | 4  33° | 5 33° | 6 32° | 7 33° |
| 8  33° | 9 34° | 10 31° | 11 30° | 12 33° | 13 34° | 14 31° |
| 15  29° | 16  25° | 17 34° | 18 31° | 19 28° | 20 28° | 21 26° |
| 22 21° | 23 21° | 24 22° | 25  27° | 26  28° | 27 28° | 28 28° |
| 29 29° | 30 29° |
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Temperatures trend during September in Hangzhou
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Thundery outbreaks possible | 36° /26° | 0 mm | 8 | |
| 2 Sept. | Thundery outbreaks possible | 36° /27° | 0.5 mm | 8 | |
| 3 Sept. | Light rain shower | 32° /26° | 1.9 mm | 7 | |
| 4 Sept. | Sunny | 33° /25° | 0 mm | 8 | |
| 5 Sept. | Sunny | 33° /25° | 0 mm | 8 | |
| 6 Sept. | Patchy rain possible | 32° /24° | 0.3 mm | 7 | |
| 7 Sept. | Patchy rain possible | 33° /24° | 0.1 mm | 7 | |
| 8 Sept. | Partly cloudy | 33° /24° | 0 mm | 8 | |
| 9 Sept. | Patchy rain possible | 34° /25° | 0.1 mm | 7 | |
| 10 Sept. | Light rain shower | 31° /24° | 25.2 mm | 7 | |
| 11 Sept. | Light rain shower | 30° /24° | 13.7 mm | 7 | |
| 12 Sept. | Patchy rain possible | 33° /25° | 0.5 mm | 7 | |
| 13 Sept. | Sunny | 34° /25° | 0 mm | 8 | |
| 14 Sept. | Patchy rain possible | 31° /24° | 0.1 mm | 7 | |
| 15 Sept. | Patchy light rain with thunder | 29° /24° | 14.7 mm | 6 | |
| 16 Sept. | Moderate or heavy rain shower | 25° /23° | 46.9 mm | 6 | |
| 17 Sept. | Thundery outbreaks possible | 34° /24° | 0.1 mm | 7 | |
| 18 Sept. | Sunny | 31° /24° | 0.9 mm | 8 | |
| 19 Sept. | Moderate or heavy rain shower | 28° /25° | 20.9 mm | 6 | |
| 20 Sept. | Moderate or heavy rain shower | 28° /25° | 17.9 mm | 6 | |
| 21 Sept. | Light rain shower | 26° /20° | 5.4 mm | 6 | |
| 22 Sept. | Light rain shower | 21° /18° | 2.2 mm | 5 | |
| 23 Sept. | Patchy rain possible | 21° /18° | 0.7 mm | 5 | |
| 24 Sept. | Patchy rain possible | 22° /19° | 1.2 mm | 5 | |
| 25 Sept. | Fog | 27° /21° | 1.1 mm | 6 | |
| 26 Sept. | Light drizzle | 28° /22° | 1.1 mm | 6 | |
| 27 Sept. | Fog | 28° /21° | 1.5 mm | 6 | |
| 28 Sept. | Patchy rain possible | 28° /21° | 0.4 mm | 6 | |
| 29 Sept. | Light drizzle | 29° /22° | 1 mm | 6 | |
| 30 Sept. | Light rain shower | 29° /22° | 1.2 mm | 7 | |
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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.
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 30° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hangzhou during September?
Significant rainfall exceeding 162.1 mm is expected in Hangzhou during September, occurring over more than 20 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 15 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
- Insect Repellent: For destinations with mosquitos or other insects
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