Average annual temperature is 7.6 °C
Absolute maximum temperature: 30.2 °C
Absolute minimum temperature: -33.1 °C
Number of sunny days: 179 days
Number of rainy days: 157 days
Number of snow days: 29 days
Look at detailed online map of Tongsŏm
* Weather data for Tongsŏm 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) | 6.0 | 6.8 | 17.7 | 19.6 | 24.3 | 29.5 | 30.2 | 30.0 | 27.9 | 19.6 | 17.0 | 5.7 |
| Average daytime temperature (°C) | -5.9 | -0.4 | 8.4 | 12.9 | 19.2 | 23.1 | 26.5 | 25.8 | 23.4 | 15.2 | 3.6 | -4.0 |
| Average temperature (°C) | -11.5 | -6.1 | 2.7 | 7.7 | 14.5 | 18.7 | 22.6 | 22.4 | 18.6 | 10.1 | -0.7 | -9.0 |
| Average night temperature (°C) | -18.7 | -12.5 | -2.0 | 2.8 | 9.7 | 14.3 | 19.6 | 19.3 | 14.2 | 5.9 | -4.2 | -14.5 |
| Absolute minimum temperature (°C) | -32.5 | -22.4 | -19.6 | -2.6 | 5.3 | 8.6 | 16.6 | 14.1 | 6.8 | 0.3 | -13.0 | -33.1 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.3 |
| 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) | 6.2 | 7.6 | 8.7 | 8.2 | 9.7 | 9.6 | 8.6 | 6.9 | 9.7 | 8.2 | 6.0 | 5.1 |
| Precipitation (mm) | 28 | 5 | 73 | 114 | 122 | 171 | 246 | 381 | 28 | 31 | 111 | 57 |
| Sunny days | 15 | 22 | 18 | 16 | 16 | 9 | 8 | 3 | 17 | 22 | 16 | 17 |
| Rainy days | 3 | 2 | 11 | 14 | 15 | 21 | 23 | 28 | 13 | 9 | 11 | 7 |
| Snow days | 13 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 7 |
The largest precipitation sum in Tongsŏm is at