Average annual temperature is 12.7 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -20.6 °C
Number of sunny days: 185 days
Number of rainy days: 166 days
Number of snow days: 14 days
Look at detailed online map of Onnamu-gol
* Weather data for Onnamu-gol 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) | 11.1 | 11.3 | 23.6 | 26.4 | 31.3 | 34.8 | 33.8 | 34.3 | 30.8 | 22.3 | 23.5 | 16.3 |
| Average daytime temperature (°C) | 1.6 | 6.7 | 15.5 | 18.6 | 24.2 | 27.3 | 29.5 | 30.0 | 26.4 | 18.8 | 9.7 | 4.3 |
| Average temperature (°C) | -3.2 | 0.8 | 8.3 | 12.5 | 18.2 | 22.3 | 25.5 | 25.9 | 22.2 | 13.7 | 5.0 | 0.1 |
| Average night temperature (°C) | -8.0 | -3.4 | 2.3 | 7.1 | 12.8 | 17.8 | 22.3 | 22.4 | 18.5 | 9.2 | 0.8 | -3.6 |
| Absolute minimum temperature (°C) | -20.6 | -6.7 | -4.7 | 0.0 | 4.3 | 13.7 | 19.1 | 17.0 | 12.0 | 3.8 | -7.7 | -14.5 |
| 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 | 14.5 | 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) | 7.0 | 8.3 | 9.2 | 7.4 | 8.7 | 9.2 | 7.1 | 8.1 | 7.1 | 7.9 | 6.9 | 5.6 |
| Precipitation (mm) | 54 | 1 | 19 | 101 | 138 | 242 | 427 | 375 | 198 | 42 | 105 | 83 |
| Sunny days | 19 | 23 | 25 | 15 | 20 | 10 | 7 | 7 | 8 | 18 | 16 | 17 |
| Rainy days | 4 | 3 | 6 | 15 | 11 | 20 | 24 | 24 | 22 | 13 | 13 | 11 |
| Snow days | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The largest precipitation sum in Onnamu-gol is at