Average annual temperature is 13.6 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -15.0 °C
Number of sunny days: 152 days
Number of rainy days: 195 days
Number of snow days: 18 days
Look at detailed online map of Sisan
* Weather data for Sisan 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) | 14.9 | 12.3 | 23.2 | 24.2 | 30.3 | 33.7 | 32.2 | 33.6 | 30.2 | 22.3 | 24.2 | 17.6 |
| Average daytime temperature (°C) | 3.6 | 7.0 | 15.3 | 17.9 | 22.9 | 27.1 | 28.6 | 29.7 | 26.1 | 19.3 | 11.6 | 6.3 |
| Average temperature (°C) | -0.5 | 1.8 | 8.9 | 12.6 | 18.0 | 21.8 | 25.2 | 25.9 | 22.3 | 15.2 | 7.7 | 3.3 |
| Average night temperature (°C) | -5.0 | -2.0 | 4.2 | 8.2 | 13.9 | 18.0 | 22.8 | 22.9 | 19.2 | 11.3 | 3.7 | 0.1 |
| Absolute minimum temperature (°C) | -15.0 | -7.3 | -3.8 | 1.2 | 6.6 | 14.1 | 19.9 | 16.4 | 14.0 | 5.6 | -5.5 | -11.6 |
| 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 | 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) | 7.2 | 7.2 | 8.8 | 7.5 | 8.0 | 9.1 | 6.8 | 9.6 | 7.8 | 8.6 | 6.8 | 5.5 |
| Precipitation (mm) | 40 | 14 | 42 | 87 | 148 | 156 | 479 | 303 | 193 | 15 | 105 | 113 |
| Sunny days | 16 | 18 | 23 | 12 | 10 | 13 | 1 | 5 | 9 | 19 | 14 | 12 |
| Rainy days | 7 | 7 | 8 | 18 | 21 | 17 | 30 | 26 | 21 | 12 | 15 | 13 |
| Snow days | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
The largest precipitation sum in Sisan is at