Average annual temperature is 18.1 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -6.2 °C
Number of sunny days: 162 days
Number of rainy days: 201 days
Number of snow days: 2 days
Look at detailed online map of Siwuwan
* Weather data for Siwuwan 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) | 19.8 | 18.7 | 24.9 | 32.4 | 32.0 | 33.8 | 35.1 | 35.7 | 33.6 | 27.6 | 28.9 | 22.7 |
| Average daytime temperature (°C) | 11.5 | 12.1 | 18.8 | 23.0 | 26.8 | 29.9 | 32.0 | 32.3 | 29.3 | 24.2 | 18.2 | 11.0 |
| Average temperature (°C) | 6.1 | 8.1 | 13.9 | 18.4 | 22.5 | 26.1 | 28.7 | 28.4 | 25.3 | 19.7 | 13.1 | 6.2 |
| Average night temperature (°C) | 1.0 | 4.0 | 9.8 | 14.2 | 19.0 | 22.9 | 26.0 | 24.8 | 22.0 | 15.8 | 8.7 | 1.8 |
| Absolute minimum temperature (°C) | -4.9 | -1.6 | 5.1 | 8.4 | 12.9 | 18.0 | 23.2 | 19.2 | 18.9 | 10.0 | 0.7 | -6.2 |
| 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) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.2 | 12.4 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.8 | 4.6 | 5.9 | 7.3 | 7.6 | 8.1 | 8.0 | 10.1 | 7.2 | 6.6 | 7.4 | 6.4 |
| Precipitation (mm) | 30 | 43 | 72 | 198 | 225 | 215 | 294 | 82 | 88 | 18 | 70 | 68 |
| Sunny days | 23 | 12 | 14 | 11 | 7 | 8 | 6 | 11 | 10 | 19 | 20 | 21 |
| Rainy days | 7 | 16 | 17 | 19 | 24 | 22 | 25 | 20 | 20 | 12 | 10 | 9 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Siwuwan during the most sunny months:
The largest precipitation sum in Siwuwan is at