Average annual temperature is 8.7 °C
Absolute maximum temperature: 30.4 °C
Absolute minimum temperature: -23.3 °C
Number of sunny days: 157 days
Number of rainy days: 185 days
Number of snow days: 23 days
Look at detailed online map of Ganchon
* Weather data for Ganchon 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) | 9.3 | 8.6 | 19.3 | 20.1 | 24.9 | 27.2 | 30.3 | 30.4 | 25.9 | 18.1 | 18.7 | 11.2 |
| Average daytime temperature (°C) | -2.0 | 2.4 | 10.5 | 13.0 | 18.6 | 22.6 | 26.4 | 25.9 | 21.8 | 14.9 | 6.0 | -0.7 |
| Average temperature (°C) | -6.2 | -2.3 | 4.4 | 7.7 | 13.7 | 17.9 | 22.3 | 21.8 | 17.8 | 10.0 | 1.5 | -4.5 |
| Average night temperature (°C) | -10.2 | -5.5 | -0.7 | 3.4 | 9.0 | 13.6 | 19.1 | 18.7 | 14.6 | 5.8 | -2.5 | -8.1 |
| Absolute minimum temperature (°C) | -23.3 | -9.9 | -9.0 | -3.9 | 1.4 | 9.8 | 15.5 | 13.0 | 7.4 | -0.4 | -12.4 | -21.5 |
| 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 | 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) | 6.9 | 7.9 | 9.0 | 7.6 | 9.3 | 9.8 | 8.2 | 8.2 | 7.4 | 8.2 | 6.6 | 5.8 |
| Precipitation (mm) | 55 | 8 | 24 | 103 | 111 | 220 | 264 | 290 | 135 | 19 | 82 | 109 |
| Sunny days | 19 | 19 | 19 | 13 | 16 | 6 | 3 | 7 | 8 | 17 | 15 | 15 |
| Rainy days | 5 | 1 | 11 | 17 | 15 | 24 | 28 | 24 | 22 | 14 | 13 | 11 |
| Snow days | 7 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 |
The largest precipitation sum in Ganchon is at