Average annual temperature is 18.5 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -2.0 °C
Number of sunny days: 112 days
Number of rainy days: 252 days
Number of snow days: 1 day
Look at detailed online map of Haihan
* Weather data for Haihan 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) | 16.4 | 21.1 | 25.2 | 33.2 | 35.0 | 35.0 | 36.2 | 35.5 | 35.2 | 27.3 | 25.4 | 18.2 |
| Average daytime temperature (°C) | 11.0 | 15.1 | 18.7 | 24.0 | 26.7 | 27.6 | 31.5 | 31.1 | 29.0 | 22.1 | 18.8 | 13.1 |
| Average temperature (°C) | 7.0 | 11.6 | 14.7 | 19.6 | 22.5 | 24.1 | 27.1 | 27.2 | 24.9 | 18.9 | 15.2 | 9.5 |
| Average night temperature (°C) | 3.0 | 8.8 | 11.0 | 15.5 | 19.0 | 21.0 | 23.4 | 23.6 | 21.3 | 16.0 | 11.9 | 5.8 |
| Absolute minimum temperature (°C) | -2.0 | 6.2 | 5.4 | 8.2 | 14.9 | 18.0 | 19.3 | 19.4 | 18.5 | 11.1 | 5.6 | 1.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.2 | 12.0 | 12.9 | 13.6 | 13.9 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 5.1 | 4.3 | 5.3 | 7.2 | 7.3 | 6.2 | 8.7 | 8.7 | 7.5 | 5.1 | 5.4 | 4.3 |
| Precipitation (mm) | 21 | 28 | 107 | 131 | 191 | 103 | 272 | 227 | 197 | 201 | 81 | 10 |
| Sunny days | 19 | 9 | 4 | 8 | 7 | 7 | 11 | 4 | 11 | 5 | 7 | 20 |
| Rainy days | 11 | 19 | 27 | 22 | 24 | 23 | 20 | 27 | 19 | 26 | 23 | 11 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Haihan during the most sunny months:
The largest precipitation sum in Haihan is at