Average annual temperature is 13.7 °C
Absolute maximum temperature: 34.7 °C
Absolute minimum temperature: -14.6 °C
Number of sunny days: 157 days
Number of rainy days: 191 days
Number of snow days: 17 days
Look at detailed online map of Ongnyeo
* Weather data for Ongnyeo 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) | 14.7 | 12.1 | 24.0 | 24.5 | 31.0 | 34.7 | 32.5 | 34.1 | 30.6 | 22.5 | 24.9 | 18.0 |
| Average daytime temperature (°C) | 4.0 | 7.2 | 15.9 | 18.6 | 23.5 | 27.8 | 28.9 | 30.1 | 26.5 | 19.7 | 12.0 | 6.5 |
| Average temperature (°C) | -0.5 | 1.8 | 9.0 | 13.0 | 18.3 | 22.2 | 25.4 | 26.1 | 22.5 | 15.0 | 7.7 | 3.2 |
| Average night temperature (°C) | -4.9 | -2.2 | 4.0 | 8.3 | 14.1 | 18.3 | 22.9 | 22.9 | 19.2 | 10.9 | 3.4 | -0.1 |
| Absolute minimum temperature (°C) | -14.6 | -6.2 | -3.7 | 1.1 | 6.3 | 14.4 | 20.1 | 16.6 | 14.0 | 5.0 | -5.4 | -11.5 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.2 | 7.3 | 8.8 | 7.6 | 8.1 | 9.3 | 6.9 | 9.6 | 7.7 | 8.7 | 6.9 | 5.6 |
| Precipitation (mm) | 38 | 12 | 37 | 80 | 159 | 167 | 523 | 353 | 212 | 16 | 97 | 125 |
| Sunny days | 16 | 20 | 23 | 13 | 10 | 13 | 1 | 5 | 9 | 21 | 14 | 12 |
| Rainy days | 7 | 7 | 8 | 17 | 21 | 17 | 30 | 26 | 21 | 10 | 15 | 12 |
| Snow days | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 |
The largest precipitation sum in Ongnyeo is at