Average annual temperature is 11.0 °C
Absolute maximum temperature: 32.4 °C
Absolute minimum temperature: -19.4 °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 Sŏsan
* Weather data for Sŏsan 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 | 9.8 | 20.3 | 22.9 | 28.2 | 31.0 | 31.7 | 32.4 | 29.8 | 21.6 | 21.7 | 13.6 |
| Average daytime temperature (°C) | -0.2 | 4.5 | 12.1 | 16.1 | 21.9 | 25.8 | 28.7 | 28.5 | 25.6 | 18.1 | 7.7 | 1.9 |
| Average temperature (°C) | -4.8 | -0.9 | 5.5 | 10.4 | 16.3 | 20.8 | 24.6 | 24.5 | 21.0 | 13.1 | 3.2 | -2.2 |
| Average night temperature (°C) | -9.2 | -4.7 | 0.4 | 6.0 | 11.5 | 16.5 | 21.5 | 21.3 | 17.2 | 8.8 | -0.6 | -6.2 |
| Absolute minimum temperature (°C) | -19.4 | -7.8 | -5.3 | 0.1 | 5.1 | 13.2 | 18.6 | 16.2 | 11.7 | 3.3 | -8.5 | -17.3 |
| 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 | 14.2 | 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 | 8.4 | 9.0 | 7.5 | 9.1 | 9.4 | 8.2 | 7.8 | 8.2 | 8.2 | 6.6 | 5.6 |
| Precipitation (mm) | 31 | 5 | 26 | 118 | 94 | 163 | 189 | 285 | 62 | 28 | 116 | 65 |
| Sunny days | 20 | 25 | 23 | 12 | 18 | 9 | 7 | 5 | 11 | 17 | 14 | 16 |
| Rainy days | 4 | 1 | 7 | 18 | 13 | 21 | 24 | 26 | 19 | 14 | 14 | 9 |
| Snow days | 7 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 6 |
The largest precipitation sum in Sŏsan is at