Chongming in September
7.6out of 10
Yes, a good time to go
Warm and comfortable: highs around 26°C. Frequent rain: about 10 rainy days.
26°CAvg high
23°CAvg low
10Rainy days (109 mm)
12:11 hDaylight
05:42Sunrise · 17:53 Sunset
Why this score
- Warm and comfortable: highs around 26°C
- Frequent rain: about 10 rainy days
What to wear and pack
- T-shirts and light layers
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.0 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 7°C | 4°C | 68 mm | 8 | – | – | 5.5 |
| February | 8°C | 5°C | 70 mm | 9 | – | – | 5.6 |
| March | 11°C | 8°C | 104 mm | 11 | – | – | 5.7 |
| April | 16°C | 13°C | 106 mm | 10 | – | – | 6.6 |
| May | 21°C | 18°C | 123 mm | 10 | – | – | 7.5 |
| June | 25°C | 22°C | 258 mm | 14 | – | – | 6.4 |
| July | 29°C | 26°C | 150 mm | 13 | – | – | 7.1 |
| August | 29°C | 27°C | 154 mm | 14 | – | – | 6.9 |
| September | 26°C | 23°C | 109 mm | 10 | – | – | 7.6 |
| October | 21°C | 19°C | 66 mm | 6 | – | – | 8.1 |
| November | 16°C | 13°C | 66 mm | 7 | – | – | 7.1 |
| December | 10°C | 6°C | 50 mm | 6 | – | – | 6.3 |
Frequently asked questions
How hot is Chongming in September?
Daytime highs average 26°C and nights about 23°C.
When is the best time to visit Chongming?
The best months are October, September, May.