Average annual temperature is 11.7 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: -18.9 °C
Number of sunny days: 173 days
Number of rainy days: 179 days
Number of snow days: 13 days
Look at detailed online map of Osumul
* Weather data for Osumul 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) | 12.6 | 10.5 | 21.5 | 22.8 | 29.8 | 30.7 | 32.1 | 32.6 | 28.6 | 20.6 | 22.7 | 16.0 |
| Average daytime temperature (°C) | 0.6 | 5.3 | 13.8 | 16.6 | 21.8 | 25.9 | 28.0 | 28.8 | 24.6 | 17.4 | 8.9 | 3.3 |
| Average temperature (°C) | -3.6 | 0.2 | 7.9 | 11.0 | 16.9 | 20.9 | 24.0 | 24.6 | 20.8 | 12.8 | 4.6 | -0.2 |
| Average night temperature (°C) | -8.2 | -3.4 | 2.8 | 6.2 | 12.2 | 16.6 | 21.0 | 21.2 | 17.4 | 8.6 | 0.2 | -3.5 |
| Absolute minimum temperature (°C) | -18.9 | -8.4 | -5.5 | -0.8 | 4.3 | 13.0 | 17.2 | 15.9 | 11.0 | 2.5 | -9.8 | -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) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| 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 | 7.8 | 9.1 | 8.0 | 8.6 | 10.0 | 7.4 | 8.8 | 7.3 | 8.3 | 7.4 | 6.0 |
| Precipitation (mm) | 32 | 7 | 32 | 65 | 122 | 181 | 514 | 393 | 267 | 26 | 73 | 99 |
| Sunny days | 17 | 22 | 20 | 12 | 19 | 10 | 5 | 5 | 7 | 23 | 16 | 17 |
| Rainy days | 9 | 5 | 11 | 18 | 12 | 20 | 26 | 26 | 23 | 8 | 12 | 9 |
| Snow days | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 |
The largest precipitation sum in Osumul is at