Average annual temperature is 14.8 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -12.8 °C
Number of sunny days: 195 days
Number of rainy days: 166 days
Number of snow days: 4 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) | 16.7 | 15.5 | 25.2 | 27.9 | 29.0 | 32.9 | 34.1 | 35.0 | 30.2 | 24.0 | 26.2 | 19.9 |
| Average daytime temperature (°C) | 7.0 | 10.7 | 17.9 | 19.5 | 23.0 | 27.7 | 29.5 | 31.0 | 27.3 | 21.6 | 14.9 | 9.2 |
| Average temperature (°C) | 1.3 | 4.6 | 11.1 | 13.9 | 18.1 | 22.6 | 25.8 | 27.3 | 23.4 | 15.7 | 9.0 | 4.0 |
| Average night temperature (°C) | -3.3 | -0.6 | 5.6 | 8.7 | 13.8 | 18.7 | 23.0 | 24.2 | 19.9 | 10.4 | 4.1 | -0.5 |
| Absolute minimum temperature (°C) | -12.8 | -5.1 | -3.2 | 1.6 | 7.3 | 14.8 | 19.3 | 22.0 | 15.6 | 5.5 | -4.0 | -8.5 |
| 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) | 7.9 | 7.7 | 8.9 | 7.9 | 7.8 | 8.7 | 7.1 | 9.4 | 7.6 | 8.7 | 8.1 | 7.1 |
| Precipitation (mm) | 58 | 37 | 68 | 85 | 268 | 200 | 264 | 318 | 264 | 7 | 33 | 71 |
| Sunny days | 26 | 19 | 20 | 16 | 13 | 12 | 3 | 9 | 7 | 26 | 23 | 21 |
| Rainy days | 4 | 9 | 11 | 14 | 18 | 18 | 28 | 22 | 23 | 5 | 7 | 7 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Sisan is at