Average annual temperature is 13.9 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -14.2 °C
Number of sunny days: 157 days
Number of rainy days: 190 days
Number of snow days: 18 days
Look at detailed online map of Onsudong
* Weather data for Onsudong 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) | 15.6 | 12.7 | 22.3 | 24.6 | 29.5 | 33.1 | 32.1 | 33.8 | 30.9 | 22.8 | 24.0 | 18.0 |
| Average daytime temperature (°C) | 4.3 | 7.5 | 15.3 | 18.2 | 22.8 | 27.0 | 28.8 | 30.2 | 26.8 | 19.9 | 12.4 | 7.2 |
| Average temperature (°C) | 0.1 | 2.3 | 8.9 | 12.7 | 17.9 | 21.9 | 25.4 | 26.2 | 22.7 | 15.4 | 8.3 | 3.6 |
| Average night temperature (°C) | -4.3 | -1.2 | 4.0 | 8.1 | 13.7 | 18.3 | 22.8 | 23.1 | 19.6 | 11.4 | 4.6 | 0.5 |
| Absolute minimum temperature (°C) | -14.2 | -5.2 | -3.3 | 1.4 | 7.5 | 14.5 | 19.8 | 18.8 | 15.2 | 7.0 | -3.4 | -11.0 |
| 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) | 6.8 | 7.3 | 8.8 | 7.3 | 7.5 | 8.8 | 6.2 | 9.5 | 7.5 | 8.4 | 6.6 | 5.0 |
| Precipitation (mm) | 44 | 15 | 43 | 114 | 157 | 196 | 509 | 244 | 185 | 17 | 94 | 116 |
| Sunny days | 18 | 20 | 23 | 13 | 12 | 15 | 1 | 2 | 9 | 20 | 14 | 10 |
| Rainy days | 7 | 7 | 8 | 17 | 19 | 15 | 30 | 29 | 21 | 11 | 14 | 12 |
| Snow days | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 9 |
The best time to visit Onsudong during the most sunny months:
The largest precipitation sum in Onsudong is at