Average annual temperature is 22.6 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: 6.4 °C
Number of sunny days: 132 days
Number of rainy days: 233 days
Look at detailed online map of Haimen
* Weather data for Haimen China is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 24.1 | 24.1 | 27.4 | 30.2 | 33.1 | 32.1 | 35.3 | 35.2 | 33.1 | 33.7 | 31.4 | 27.7 |
| Average daytime temperature (°C) | 18.2 | 18.8 | 21.3 | 24.3 | 27.6 | 29.6 | 31.6 | 31.7 | 29.6 | 27.5 | 25.4 | 21.4 |
| Average temperature (°C) | 15.2 | 15.6 | 17.9 | 21.7 | 25.1 | 27.5 | 28.7 | 28.6 | 27.3 | 24.9 | 21.5 | 17.3 |
| Average night temperature (°C) | 12.3 | 13.1 | 15.2 | 19.6 | 23.2 | 25.7 | 26.4 | 26.2 | 25.2 | 22.7 | 18.2 | 14.0 |
| Absolute minimum temperature (°C) | 7.0 | 9.1 | 10.5 | 15.2 | 20.2 | 24.2 | 25.0 | 24.4 | 23.5 | 19.6 | 12.8 | 6.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.9 | 11.4 | 12.0 | 12.7 | 13.3 | 13.5 | 13.4 | 12.9 | 12.3 | 11.6 | 11.0 | 10.7 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.1 | 7.2 | 8.8 | 8.0 | 8.8 | 9.3 | 10.1 | 9.5 | 7.5 | 7.4 | 9.0 | 7.4 |
| Precipitation (mm) | 20 | 51 | 46 | 71 | 172 | 273 | 213 | 214 | 350 | 121 | 7 | 10 |
| Sunny days | 16 | 16 | 19 | 8 | 8 | 0 | 3 | 1 | 3 | 14 | 24 | 20 |
| Rainy days | 15 | 12 | 12 | 22 | 23 | 30 | 28 | 30 | 27 | 17 | 6 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Haimen is at