Average annual temperature is 20.2 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: 0.2 °C
Number of sunny days: 102 days
Number of rainy days: 263 days
Look at detailed online map of Siwei
* Weather data for Siwei 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) | 23.0 | 24.4 | 31.1 | 29.4 | 33.3 | 33.3 | 36.1 | 34.2 | 32.3 | 30.8 | 27.7 | 25.9 |
| Average daytime temperature (°C) | 15.4 | 16.5 | 21.8 | 23.9 | 27.3 | 30.1 | 32.7 | 31.2 | 30.2 | 26.8 | 21.4 | 16.7 |
| Average temperature (°C) | 10.6 | 12.0 | 17.0 | 19.9 | 23.6 | 26.3 | 28.8 | 27.1 | 26.0 | 22.1 | 16.9 | 11.8 |
| Average night temperature (°C) | 6.3 | 8.2 | 12.7 | 16.5 | 20.1 | 23.3 | 25.4 | 24.1 | 22.9 | 18.3 | 13.1 | 7.9 |
| Absolute minimum temperature (°C) | 0.2 | 3.1 | 8.5 | 9.6 | 14.6 | 21.1 | 23.5 | 20.9 | 20.2 | 15.4 | 7.7 | 0.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 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) | 10.8 | 11.3 | 12.0 | 12.7 | 13.3 | 13.6 | 13.5 | 13.0 | 12.3 | 11.6 | 11.0 | 10.6 |
| 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) | 5.8 | 4.9 | 5.3 | 5.6 | 7.8 | 8.6 | 11.2 | 9.3 | 9.6 | 8.4 | 6.7 | 6.3 |
| Precipitation (mm) | 29 | 118 | 204 | 488 | 202 | 369 | 141 | 187 | 105 | 67 | 174 | 42 |
| Sunny days | 15 | 14 | 9 | 7 | 2 | 3 | 1 | 3 | 3 | 18 | 13 | 14 |
| Rainy days | 16 | 14 | 22 | 23 | 29 | 27 | 30 | 28 | 27 | 13 | 17 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Siwei during the most sunny months:
The largest precipitation sum in Siwei is at