Average annual temperature is 14.2 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -14.1 °C
Number of sunny days: 159 days
Number of rainy days: 191 days
Number of snow days: 15 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) | 15.4 | 12.3 | 23.3 | 24.6 | 30.1 | 33.7 | 32.6 | 33.9 | 31.1 | 23.3 | 24.8 | 18.7 |
| Average daytime temperature (°C) | 4.9 | 7.4 | 15.7 | 18.8 | 23.5 | 27.4 | 29.1 | 30.5 | 27.0 | 20.4 | 12.9 | 7.6 |
| Average temperature (°C) | 0.5 | 2.4 | 9.1 | 13.1 | 18.3 | 22.3 | 25.7 | 26.5 | 22.9 | 15.7 | 8.9 | 4.1 |
| Average night temperature (°C) | -3.9 | -1.2 | 4.4 | 8.4 | 14.1 | 18.7 | 23.2 | 23.4 | 19.7 | 11.7 | 5.1 | 0.9 |
| Absolute minimum temperature (°C) | -14.1 | -4.5 | -3.4 | 1.8 | 7.2 | 14.2 | 20.8 | 18.7 | 15.7 | 7.6 | -2.9 | -10.4 |
| 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 | 8.9 | 7.5 | 7.6 | 9.0 | 6.5 | 9.7 | 7.8 | 8.3 | 6.8 | 4.9 |
| Precipitation (mm) | 43 | 13 | 34 | 101 | 140 | 158 | 510 | 216 | 181 | 18 | 92 | 117 |
| Sunny days | 17 | 21 | 23 | 13 | 12 | 15 | 0 | 5 | 9 | 21 | 14 | 9 |
| Rainy days | 9 | 7 | 8 | 17 | 19 | 15 | 31 | 26 | 21 | 10 | 14 | 14 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 8 |
The best time to visit Onsudong during the most sunny months:
The largest precipitation sum in Onsudong is at