Average annual temperature is 18.2 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -5.3 °C
Number of sunny days: 171 days
Number of rainy days: 192 days
Number of snow days: 2 days
Look at detailed online map of Siwumen
* Weather data for Siwumen 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) | 22.0 | 18.3 | 26.1 | 30.9 | 33.5 | 34.3 | 35.1 | 35.9 | 35.0 | 28.6 | 28.8 | 22.7 |
| Average daytime temperature (°C) | 12.2 | 11.8 | 19.0 | 23.2 | 27.0 | 30.2 | 32.1 | 32.6 | 29.1 | 24.5 | 18.7 | 11.4 |
| Average temperature (°C) | 6.7 | 7.9 | 14.0 | 18.4 | 22.6 | 26.1 | 28.8 | 28.4 | 25.2 | 19.6 | 13.4 | 6.7 |
| Average night temperature (°C) | 1.1 | 3.7 | 9.3 | 14.1 | 18.9 | 22.6 | 26.2 | 24.5 | 22.0 | 15.6 | 8.9 | 2.5 |
| Absolute minimum temperature (°C) | -4.3 | -2.1 | 3.6 | 5.2 | 12.8 | 17.6 | 23.1 | 19.3 | 17.9 | 10.3 | 0.3 | -5.3 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.1 | 12.0 | 12.9 | 13.7 | 14.0 | 13.9 | 13.2 | 12.3 | 11.4 | 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) | 6.2 | 3.9 | 5.8 | 7.3 | 7.1 | 8.4 | 9.1 | 10.1 | 6.5 | 6.4 | 6.7 | 5.9 |
| Precipitation (mm) | 15 | 53 | 79 | 173 | 256 | 165 | 165 | 82 | 59 | 38 | 31 | 48 |
| Sunny days | 25 | 11 | 15 | 12 | 10 | 8 | 6 | 19 | 10 | 17 | 19 | 19 |
| Rainy days | 5 | 17 | 16 | 18 | 21 | 22 | 25 | 12 | 20 | 14 | 11 | 11 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Siwumen during the most sunny months:
The largest precipitation sum in Siwumen is at