Average annual temperature is 13.4 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -6.0 °C
Number of sunny days: 158 days
Number of rainy days: 200 days
Number of snow days: 7 days
Look at detailed online map of Siheyan
* Weather data for Siheyan 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) | 13.1 | 14.7 | 22.2 | 28.1 | 29.6 | 30.7 | 33.5 | 33.0 | 29.2 | 20.5 | 22.5 | 13.6 |
| Average daytime temperature (°C) | 5.8 | 7.8 | 15.3 | 19.0 | 21.7 | 25.7 | 29.3 | 28.7 | 23.3 | 17.4 | 12.3 | 6.8 |
| Average temperature (°C) | 1.9 | 4.5 | 9.9 | 13.9 | 17.3 | 21.0 | 24.3 | 23.9 | 19.5 | 13.8 | 8.1 | 2.7 |
| Average night temperature (°C) | -2.2 | 1.0 | 4.4 | 9.0 | 13.3 | 16.9 | 19.9 | 20.0 | 16.6 | 10.6 | 3.6 | -1.1 |
| Absolute minimum temperature (°C) | -6.0 | -3.3 | -0.1 | 1.4 | 7.9 | 11.5 | 13.9 | 13.8 | 12.7 | 6.9 | -1.7 | -5.7 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 5.5 | 3.5 | 7.7 | 7.4 | 5.8 | 6.9 | 9.0 | 9.7 | 6.7 | 5.4 | 5.0 | 4.9 |
| Precipitation (mm) | 10 | 34 | 46 | 107 | 100 | 119 | 104 | 136 | 131 | 61 | 36 | 25 |
| Sunny days | 21 | 10 | 16 | 15 | 9 | 11 | 10 | 10 | 6 | 15 | 15 | 20 |
| Rainy days | 7 | 16 | 15 | 15 | 22 | 19 | 21 | 21 | 24 | 16 | 15 | 9 |
| Snow days | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Siheyan during the most sunny months:
The largest precipitation sum in Siheyan is at