Average annual temperature is 10.4 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: -20.5 °C
Number of sunny days: 183 days
Number of rainy days: 167 days
Number of snow days: 15 days
Look at detailed online map of Sairwŏn
* Weather data for Sairwŏn 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) | 10.2 | 9.5 | 20.6 | 24.3 | 27.4 | 32.4 | 32.4 | 32.5 | 30.0 | 21.5 | 21.1 | 12.3 |
| Average daytime temperature (°C) | -0.6 | 4.6 | 12.8 | 15.9 | 21.6 | 25.7 | 29.0 | 28.2 | 24.9 | 17.8 | 7.4 | 1.0 |
| Average temperature (°C) | -5.2 | -1.0 | 5.3 | 9.7 | 15.5 | 20.1 | 24.3 | 23.8 | 19.9 | 11.9 | 2.6 | -3.4 |
| Average night temperature (°C) | -9.7 | -4.9 | -0.8 | 4.4 | 9.8 | 15.3 | 20.8 | 20.5 | 16.4 | 7.5 | -1.4 | -7.3 |
| Absolute minimum temperature (°C) | -20.5 | -8.4 | -6.5 | -2.2 | 2.2 | 11.5 | 17.6 | 16.1 | 9.2 | 1.4 | -9.9 | -18.9 |
| 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) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 6.7 | 8.3 | 9.5 | 7.7 | 9.5 | 9.7 | 8.4 | 7.9 | 7.9 | 8.2 | 6.6 | 5.5 |
| Precipitation (mm) | 44 | 3 | 15 | 99 | 122 | 192 | 235 | 279 | 97 | 21 | 80 | 82 |
| Sunny days | 20 | 25 | 24 | 12 | 16 | 8 | 7 | 7 | 8 | 19 | 18 | 19 |
| Rainy days | 3 | 0 | 7 | 18 | 15 | 22 | 24 | 24 | 22 | 12 | 12 | 8 |
| Snow days | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The largest precipitation sum in Sairwŏn is at