Average annual temperature is 18.5 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: -6.1 °C
Number of sunny days: 137 days
Number of rainy days: 227 days
Number of snow days: 1 day
Look at detailed online map of Siwu
* Weather data for Siwu 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) | 24.6 | 22.2 | 28.2 | 31.1 | 35.1 | 34.1 | 37.9 | 35.0 | 33.4 | 28.0 | 31.8 | 23.7 |
| Average daytime temperature (°C) | 12.3 | 12.9 | 19.4 | 22.5 | 27.3 | 30.1 | 34.0 | 31.4 | 30.0 | 24.0 | 19.6 | 13.1 |
| Average temperature (°C) | 7.3 | 8.6 | 14.1 | 18.0 | 22.5 | 26.1 | 29.5 | 27.3 | 25.9 | 19.5 | 14.3 | 8.0 |
| Average night temperature (°C) | 2.7 | 4.6 | 9.4 | 13.8 | 18.4 | 22.7 | 25.9 | 24.0 | 22.5 | 15.7 | 9.7 | 3.6 |
| Absolute minimum temperature (°C) | -6.1 | -1.3 | 2.1 | 7.0 | 10.8 | 19.6 | 23.8 | 19.3 | 20.0 | 9.9 | 4.6 | -6.0 |
| 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 | 14.0 | 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) | 6.7 | 5.0 | 5.9 | 7.4 | 7.7 | 6.9 | 9.7 | 9.4 | 7.9 | 6.7 | 7.7 | 6.9 |
| Precipitation (mm) | 73 | 105 | 140 | 192 | 182 | 321 | 159 | 216 | 192 | 46 | 63 | 32 |
| Sunny days | 18 | 9 | 15 | 10 | 10 | 3 | 8 | 1 | 5 | 19 | 19 | 20 |
| Rainy days | 12 | 19 | 16 | 20 | 21 | 27 | 23 | 30 | 25 | 12 | 11 | 11 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Siwu during the most sunny months:
The largest precipitation sum in Siwu is at