Average annual temperature is 12.0 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -18.3 °C
Number of sunny days: 187 days
Number of rainy days: 165 days
Number of snow days: 13 days
Look at detailed online map of Suwŏl-li
* Weather data for Suwŏl-li 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) | 10.1 | 8.8 | 21.0 | 24.0 | 28.2 | 31.7 | 32.1 | 33.8 | 30.3 | 22.2 | 22.0 | 14.6 |
| Average daytime temperature (°C) | 1.1 | 5.6 | 12.9 | 17.0 | 22.1 | 25.8 | 28.7 | 28.9 | 26.2 | 18.8 | 8.8 | 3.2 |
| Average temperature (°C) | -3.5 | 0.2 | 6.6 | 11.3 | 16.9 | 21.3 | 25.1 | 25.3 | 22.0 | 14.1 | 4.4 | -0.8 |
| Average night temperature (°C) | -7.7 | -3.6 | 1.4 | 6.7 | 12.2 | 17.4 | 22.3 | 22.2 | 18.5 | 9.8 | 0.7 | -4.5 |
| Absolute minimum temperature (°C) | -18.3 | -6.8 | -4.9 | -0.1 | 5.3 | 13.9 | 19.5 | 17.6 | 12.5 | 4.2 | -7.7 | -15.9 |
| 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) | 9.9 | 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 | 8.6 | 9.1 | 7.3 | 9.2 | 9.3 | 8.0 | 8.2 | 7.9 | 8.3 | 6.8 | 6.2 |
| Precipitation (mm) | 34 | 4 | 13 | 113 | 203 | 245 | 323 | 308 | 93 | 26 | 98 | 67 |
| Sunny days | 20 | 25 | 26 | 11 | 17 | 8 | 5 | 11 | 11 | 19 | 15 | 19 |
| Rainy days | 4 | 3 | 5 | 19 | 14 | 22 | 26 | 20 | 19 | 12 | 13 | 8 |
| Snow days | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The largest precipitation sum in Suwŏl-li is at