Average annual temperature is 12.0 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -16.1 °C
Number of sunny days: 177 days
Number of rainy days: 170 days
Number of snow days: 18 days
Look at detailed online map of Siruwŏn
* Weather data for Siruwŏn North Korea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 9.2 | 9.4 | 19.2 | 21.7 | 28.4 | 30.9 | 31.9 | 33.6 | 30.3 | 23.0 | 22.4 | 14.7 |
| Average daytime temperature (°C) | 0.7 | 5.2 | 11.6 | 16.1 | 21.9 | 25.6 | 28.5 | 28.8 | 26.3 | 19.3 | 9.2 | 3.2 |
| Average temperature (°C) | -3.6 | 0.2 | 6.1 | 11.2 | 16.9 | 21.1 | 25.0 | 25.3 | 22.0 | 14.8 | 5.2 | -0.4 |
| Average night temperature (°C) | -7.7 | -3.3 | 1.6 | 7.1 | 12.7 | 17.5 | 22.3 | 22.5 | 18.6 | 11.1 | 1.6 | -3.9 |
| Absolute minimum temperature (°C) | -16.1 | -6.5 | -3.8 | 0.7 | 7.1 | 13.8 | 19.7 | 17.6 | 13.8 | 5.5 | -6.0 | -13.5 |
| 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) | 7.0 | 8.3 | 9.0 | 7.8 | 8.8 | 9.4 | 8.0 | 8.1 | 8.3 | 8.6 | 6.6 | 5.0 |
| Precipitation (mm) | 27 | 5 | 17 | 110 | 131 | 224 | 278 | 260 | 80 | 68 | 114 | 60 |
| Sunny days | 16 | 26 | 23 | 15 | 17 | 9 | 8 | 5 | 10 | 18 | 14 | 16 |
| Rainy days | 5 | 2 | 7 | 15 | 14 | 21 | 23 | 26 | 20 | 13 | 14 | 10 |
| Snow days | 10 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 |
The largest precipitation sum in Siruwŏn is at