Average annual temperature is 13.2 °C
Absolute maximum temperature: 34.5 °C
Absolute minimum temperature: -17.2 °C
Number of sunny days: 189 days
Number of rainy days: 166 days
Number of snow days: 10 days
Look at detailed online map of Onsugoeul
* Weather data for Onsugoeul 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) | 12.5 | 11.3 | 24.6 | 26.7 | 33.2 | 34.2 | 33.8 | 34.5 | 30.6 | 22.6 | 24.1 | 17.8 |
| Average daytime temperature (°C) | 2.4 | 7.3 | 16.1 | 19.3 | 25.1 | 28.4 | 30.0 | 30.8 | 26.5 | 19.4 | 10.9 | 5.1 |
| Average temperature (°C) | -2.5 | 1.4 | 8.7 | 12.9 | 18.9 | 22.9 | 25.8 | 26.4 | 22.4 | 13.9 | 5.8 | 0.8 |
| Average night temperature (°C) | -7.1 | -3.2 | 1.9 | 7.0 | 13.1 | 18.3 | 22.6 | 22.9 | 19.0 | 9.4 | 1.1 | -3.0 |
| Absolute minimum temperature (°C) | -17.2 | -6.8 | -5.3 | -0.3 | 4.0 | 13.4 | 19.5 | 18.3 | 11.7 | 3.7 | -7.3 | -13.3 |
| 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 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 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 | 7.5 | 8.5 | 9.7 | 7.2 | 8.6 | 7.0 | 7.6 | 7.2 | 5.9 |
| Precipitation (mm) | 30 | 3 | 20 | 72 | 132 | 174 | 508 | 376 | 214 | 19 | 63 | 92 |
| Sunny days | 20 | 23 | 22 | 15 | 21 | 8 | 6 | 7 | 10 | 23 | 16 | 18 |
| Rainy days | 6 | 5 | 9 | 15 | 10 | 22 | 25 | 24 | 20 | 8 | 14 | 8 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The largest precipitation sum in Onsugoeul is at