Average annual temperature is 10.8 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: -19.0 °C
Number of sunny days: 175 days
Number of rainy days: 165 days
Number of snow days: 25 days
Look at detailed online map of Sŏmaru
* Weather data for Sŏmaru South 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) | 11.4 | 11.2 | 21.8 | 23.0 | 27.7 | 29.3 | 31.6 | 32.1 | 28.6 | 20.3 | 21.6 | 14.3 |
| Average daytime temperature (°C) | 0.7 | 5.3 | 13.3 | 15.4 | 20.6 | 24.9 | 27.7 | 28.1 | 24.1 | 16.9 | 8.6 | 2.5 |
| Average temperature (°C) | -3.7 | -0.2 | 6.6 | 9.9 | 15.5 | 19.9 | 23.6 | 23.9 | 19.8 | 11.5 | 3.8 | -1.4 |
| Average night temperature (°C) | -7.6 | -4.1 | 0.8 | 4.7 | 10.3 | 15.4 | 20.1 | 20.5 | 16.3 | 6.8 | -0.3 | -4.6 |
| Absolute minimum temperature (°C) | -19.0 | -7.9 | -6.9 | -2.6 | 2.1 | 11.1 | 16.0 | 13.1 | 9.8 | 1.2 | -10.0 | -16.1 |
| 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 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 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) | 7.1 | 7.9 | 9.3 | 8.2 | 9.2 | 10.1 | 7.8 | 8.9 | 7.3 | 8.6 | 7.3 | 5.9 |
| Precipitation (mm) | 33 | 5 | 28 | 102 | 129 | 157 | 464 | 284 | 194 | 23 | 68 | 86 |
| Sunny days | 19 | 19 | 21 | 12 | 16 | 10 | 6 | 9 | 10 | 20 | 17 | 16 |
| Rainy days | 3 | 2 | 10 | 18 | 15 | 20 | 25 | 22 | 20 | 11 | 11 | 8 |
| Snow days | 9 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 7 |
The largest precipitation sum in Sŏmaru is at