Average annual temperature is 14.1 °C
Absolute maximum temperature: 42.4 °C
Absolute minimum temperature: -15.8 °C
Number of sunny days: 265 days
Number of rainy days: 92 days
Number of snow days: 8 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) | 14.0 | 13.7 | 28.8 | 28.4 | 36.1 | 38.6 | 42.4 | 34.1 | 30.5 | 28.1 | 28.1 | 21.0 |
| Average daytime temperature (°C) | 4.7 | 7.3 | 18.2 | 19.1 | 25.3 | 33.3 | 34.0 | 29.8 | 26.1 | 22.5 | 10.9 | 3.8 |
| Average temperature (°C) | -0.8 | 2.0 | 11.6 | 13.8 | 20.2 | 27.3 | 28.7 | 25.4 | 21.3 | 15.8 | 5.0 | -2.0 |
| Average night temperature (°C) | -5.4 | -2.5 | 5.0 | 8.8 | 15.5 | 21.4 | 23.4 | 21.4 | 16.8 | 10.5 | -0.1 | -6.6 |
| Absolute minimum temperature (°C) | -12.8 | -9.6 | -2.2 | 2.3 | 9.9 | 15.5 | 20.9 | 14.4 | 10.4 | 6.3 | -6.3 | -15.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.9 | 7.6 | 10.1 | 7.6 | 7.6 | 11.1 | 9.1 | 9.0 | 7.9 | 8.6 | 7.5 | 7.1 |
| Precipitation (mm) | 11 | 25 | 0 | 94 | 45 | 41 | 218 | 135 | 31 | 6 | 9 | 26 |
| Sunny days | 29 | 22 | 29 | 18 | 15 | 25 | 19 | 13 | 15 | 29 | 25 | 26 |
| Rainy days | 1 | 2 | 2 | 12 | 16 | 5 | 12 | 18 | 15 | 2 | 3 | 4 |
| Snow days | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit Siwei during the most sunny months:
The largest precipitation sum in Siwei is at