Average annual temperature is 13.5 °C
Absolute maximum temperature: 34.5 °C
Absolute minimum temperature: -13.0 °C
Number of sunny days: 181 days
Number of rainy days: 172 days
Number of snow days: 12 days
Look at detailed online map of Kalsan-myŏn
* Weather data for Kalsan-myŏn 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) | 14.0 | 11.2 | 24.6 | 25.7 | 28.8 | 33.3 | 31.8 | 34.5 | 30.3 | 22.7 | 22.2 | 16.3 |
| Average daytime temperature (°C) | 3.5 | 6.3 | 13.4 | 17.2 | 22.5 | 25.9 | 28.2 | 29.9 | 26.3 | 19.6 | 11.4 | 5.9 |
| Average temperature (°C) | -0.5 | 1.4 | 8.0 | 12.6 | 17.7 | 21.7 | 25.3 | 26.2 | 22.6 | 15.4 | 7.8 | 2.5 |
| Average night temperature (°C) | -4.7 | -2.2 | 3.3 | 8.6 | 13.7 | 18.5 | 23.0 | 23.1 | 19.6 | 11.3 | 3.7 | -1.0 |
| Absolute minimum temperature (°C) | -13.0 | -5.4 | -2.8 | 2.7 | 6.2 | 15.1 | 20.1 | 18.0 | 14.3 | 5.6 | -3.7 | -9.8 |
| 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 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 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) | 7.2 | 8.5 | 9.4 | 8.1 | 8.7 | 10.1 | 7.7 | 9.2 | 7.4 | 8.6 | 6.9 | 4.4 |
| Precipitation (mm) | 31 | 2 | 13 | 87 | 129 | 187 | 464 | 235 | 246 | 13 | 86 | 89 |
| Sunny days | 20 | 23 | 24 | 16 | 17 | 14 | 5 | 7 | 10 | 20 | 12 | 13 |
| Rainy days | 7 | 5 | 7 | 14 | 14 | 16 | 26 | 24 | 20 | 11 | 16 | 12 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 6 |
The best time to visit Kalsan-myŏn during the most sunny months:
The largest precipitation sum in Kalsan-myŏn is at