Average annual temperature is 13.1 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -17.0 °C
Number of sunny days: 193 days
Number of rainy days: 163 days
Number of snow days: 9 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) | 12.8 | 11.4 | 24.7 | 26.8 | 33.1 | 34.4 | 33.2 | 34.2 | 29.7 | 21.8 | 23.7 | 17.8 |
| Average daytime temperature (°C) | 2.3 | 6.7 | 15.8 | 19.2 | 24.8 | 27.9 | 29.3 | 30.2 | 26.1 | 19.1 | 10.4 | 4.9 |
| Average temperature (°C) | -2.4 | 1.1 | 8.8 | 12.9 | 18.9 | 22.6 | 25.5 | 26.0 | 22.1 | 13.9 | 5.7 | 0.9 |
| Average night temperature (°C) | -7.2 | -3.1 | 2.9 | 7.3 | 13.1 | 18.0 | 22.4 | 22.4 | 18.6 | 8.9 | 1.1 | -2.8 |
| Absolute minimum temperature (°C) | -17.0 | -6.8 | -4.6 | 0.6 | 4.6 | 13.6 | 19.8 | 16.4 | 12.1 | 2.7 | -7.8 | -14.1 |
| 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 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 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) | 7.1 | 8.0 | 9.3 | 7.6 | 8.5 | 9.9 | 7.2 | 8.6 | 7.1 | 8.1 | 7.2 | 5.9 |
| Precipitation (mm) | 31 | 2 | 29 | 61 | 122 | 155 | 425 | 343 | 255 | 25 | 80 | 82 |
| Sunny days | 21 | 24 | 22 | 16 | 20 | 11 | 5 | 9 | 10 | 19 | 17 | 19 |
| Rainy days | 6 | 3 | 9 | 14 | 11 | 19 | 26 | 22 | 20 | 12 | 13 | 8 |
| Snow days | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The best time to visit Onsudong during the most sunny months:
The largest precipitation sum in Onsudong is at