Average annual temperature is 13.2 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -12.2 °C
Number of sunny days: 192 days
Number of rainy days: 161 days
Number of snow days: 12 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) | 12.5 | 9.3 | 22.7 | 24.1 | 26.9 | 30.6 | 31.0 | 35.0 | 30.0 | 22.7 | 21.6 | 14.8 |
| Average daytime temperature (°C) | 2.7 | 5.0 | 11.3 | 15.5 | 20.4 | 23.7 | 27.1 | 29.1 | 25.9 | 19.3 | 11.3 | 5.7 |
| Average temperature (°C) | -0.4 | 1.5 | 7.0 | 11.8 | 16.8 | 20.7 | 24.8 | 26.0 | 22.6 | 16.1 | 8.3 | 2.9 |
| Average night temperature (°C) | -4.0 | -1.4 | 3.1 | 8.7 | 13.9 | 18.4 | 23.0 | 23.2 | 20.0 | 12.7 | 5.0 | -0.3 |
| Absolute minimum temperature (°C) | -12.2 | -4.8 | -0.8 | 4.1 | 6.8 | 15.7 | 20.5 | 19.5 | 16.3 | 8.2 | -2.6 | -8.7 |
| 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) | 7.2 | 8.5 | 9.4 | 8.0 | 8.6 | 9.9 | 7.9 | 9.3 | 7.4 | 8.5 | 6.7 | 4.6 |
| Precipitation (mm) | 30 | 1 | 11 | 99 | 125 | 133 | 398 | 214 | 213 | 13 | 73 | 73 |
| Sunny days | 20 | 27 | 25 | 17 | 18 | 16 | 6 | 9 | 12 | 18 | 11 | 13 |
| Rainy days | 6 | 1 | 6 | 13 | 13 | 14 | 25 | 22 | 18 | 13 | 18 | 12 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
The largest precipitation sum in Onnamu-gol is at