Average annual temperature is 12.5 °C
Absolute maximum temperature: 32.8 °C
Absolute minimum temperature: -16.7 °C
Number of sunny days: 176 days
Number of rainy days: 176 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) | 15.1 | 12.7 | 22.8 | 25.3 | 29.5 | 32.5 | 32.2 | 32.8 | 29.2 | 21.9 | 23.3 | 17.0 |
| Average daytime temperature (°C) | 3.1 | 6.6 | 15.2 | 17.8 | 22.4 | 27.3 | 28.4 | 29.5 | 25.4 | 18.6 | 10.6 | 5.2 |
| Average temperature (°C) | -1.7 | 0.9 | 8.4 | 11.7 | 17.0 | 21.7 | 24.5 | 25.1 | 21.2 | 13.2 | 5.8 | 1.0 |
| Average night temperature (°C) | -5.8 | -3.3 | 2.8 | 6.5 | 12.2 | 17.1 | 21.6 | 21.7 | 17.7 | 8.8 | 1.3 | -2.5 |
| Absolute minimum temperature (°C) | -16.7 | -8.0 | -5.0 | -0.2 | 4.3 | 12.8 | 19.0 | 16.5 | 12.7 | 3.7 | -8.2 | -13.6 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.2 | 7.4 | 9.0 | 7.8 | 8.3 | 10.0 | 7.3 | 9.5 | 7.3 | 8.7 | 7.2 | 5.8 |
| Precipitation (mm) | 35 | 10 | 37 | 89 | 136 | 192 | 576 | 354 | 251 | 19 | 64 | 110 |
| Sunny days | 19 | 21 | 20 | 15 | 15 | 13 | 3 | 5 | 8 | 23 | 18 | 16 |
| Rainy days | 5 | 6 | 11 | 15 | 16 | 17 | 28 | 26 | 22 | 8 | 12 | 10 |
| Snow days | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The largest precipitation sum in Osumul is at