Average annual temperature is 11.6 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -19.2 °C
Number of sunny days: 182 days
Number of rainy days: 171 days
Number of snow days: 12 days
Look at detailed online map of Onam-eup
* Weather data for Onam-eup 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) | 11.2 | 10.2 | 21.8 | 25.1 | 28.0 | 34.3 | 32.6 | 33.4 | 30.2 | 21.1 | 22.1 | 14.6 |
| Average daytime temperature (°C) | 0.9 | 5.7 | 13.9 | 17.0 | 22.6 | 26.4 | 28.4 | 28.8 | 25.5 | 18.1 | 8.6 | 3.2 |
| Average temperature (°C) | -4.2 | -0.1 | 7.0 | 11.2 | 16.9 | 21.3 | 24.7 | 25.0 | 21.2 | 12.8 | 3.8 | -0.9 |
| Average night temperature (°C) | -9.2 | -4.2 | 1.0 | 6.2 | 11.7 | 16.9 | 21.7 | 21.7 | 17.6 | 8.2 | -0.4 | -4.7 |
| Absolute minimum temperature (°C) | -19.2 | -7.6 | -5.0 | -0.9 | 3.6 | 12.1 | 18.1 | 16.7 | 10.8 | 1.8 | -8.7 | -15.9 |
| 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 | 13.0 | 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) | 7.2 | 8.2 | 9.0 | 7.3 | 9.2 | 9.2 | 7.6 | 8.2 | 7.5 | 8.1 | 6.9 | 6.1 |
| Precipitation (mm) | 42 | 2 | 22 | 114 | 155 | 278 | 430 | 334 | 137 | 28 | 106 | 72 |
| Sunny days | 18 | 24 | 24 | 13 | 19 | 9 | 7 | 8 | 8 | 18 | 15 | 19 |
| Rainy days | 5 | 4 | 7 | 17 | 12 | 21 | 24 | 23 | 22 | 13 | 13 | 10 |
| Snow days | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The largest precipitation sum in Onam-eup is at