Average annual temperature is 12.2 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -18.0 °C
Number of sunny days: 191 days
Number of rainy days: 163 days
Number of snow days: 11 days
Look at detailed online map of Hayasan
* Weather data for Hayasan 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) | 11.5 | 9.0 | 21.6 | 24.7 | 27.7 | 32.9 | 32.2 | 33.6 | 30.7 | 22.5 | 22.1 | 15.1 |
| Average daytime temperature (°C) | 1.5 | 5.6 | 12.9 | 17.1 | 22.2 | 25.8 | 28.7 | 29.3 | 26.3 | 19.3 | 9.6 | 4.0 |
| Average temperature (°C) | -3.3 | 0.0 | 6.7 | 11.8 | 17.2 | 21.6 | 25.1 | 25.5 | 22.0 | 14.0 | 4.8 | -0.3 |
| Average night temperature (°C) | -7.8 | -4.0 | 1.8 | 7.5 | 12.9 | 18.2 | 22.3 | 22.2 | 18.4 | 9.3 | 0.6 | -4.3 |
| Absolute minimum temperature (°C) | -18.0 | -7.1 | -3.9 | 2.2 | 6.2 | 14.2 | 19.0 | 16.5 | 12.8 | 4.1 | -7.2 | -14.6 |
| 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 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 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 | 8.4 | 9.0 | 7.4 | 9.1 | 9.2 | 7.8 | 8.5 | 7.9 | 8.3 | 6.9 | 6.3 |
| Precipitation (mm) | 39 | 4 | 33 | 126 | 172 | 195 | 307 | 314 | 108 | 44 | 83 | 73 |
| Sunny days | 20 | 26 | 24 | 13 | 21 | 11 | 5 | 8 | 11 | 19 | 13 | 20 |
| Rainy days | 5 | 2 | 7 | 17 | 10 | 19 | 26 | 23 | 19 | 12 | 15 | 8 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The largest precipitation sum in Hayasan is at