Average annual temperature is 10.8 °C
Absolute maximum temperature: 32.8 °C
Absolute minimum temperature: -26.1 °C
Number of sunny days: 182 days
Number of rainy days: 167 days
Number of snow days: 16 days
Look at detailed online map of Oyasan
* Weather data for Oyasan 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) | 9.4 | 9.3 | 21.1 | 23.6 | 27.9 | 32.8 | 32.0 | 32.5 | 30.0 | 21.0 | 21.6 | 13.6 |
| Average daytime temperature (°C) | -0.7 | 4.8 | 13.1 | 16.1 | 22.0 | 25.8 | 28.5 | 28.2 | 25.3 | 17.6 | 7.7 | 2.0 |
| Average temperature (°C) | -5.6 | -0.9 | 6.3 | 10.4 | 16.4 | 20.7 | 24.4 | 24.2 | 20.6 | 12.3 | 2.9 | -2.1 |
| Average night temperature (°C) | -10.7 | -5.0 | 0.6 | 5.4 | 11.4 | 16.1 | 21.1 | 20.7 | 16.8 | 7.9 | -1.1 | -5.8 |
| Absolute minimum temperature (°C) | -26.1 | -9.2 | -6.5 | -2.0 | 3.3 | 12.0 | 18.0 | 15.3 | 8.8 | 1.6 | -9.6 | -17.9 |
| 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 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 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) | 7.0 | 8.5 | 9.4 | 7.1 | 9.3 | 9.6 | 8.1 | 7.8 | 7.7 | 8.3 | 6.5 | 5.9 |
| Precipitation (mm) | 50 | 2 | 16 | 107 | 158 | 185 | 296 | 295 | 123 | 37 | 94 | 74 |
| Sunny days | 21 | 24 | 24 | 12 | 20 | 7 | 5 | 6 | 10 | 20 | 15 | 18 |
| Rainy days | 3 | 1 | 7 | 18 | 11 | 23 | 26 | 25 | 20 | 11 | 13 | 9 |
| Snow days | 7 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The largest precipitation sum in Oyasan is at