Average annual temperature is 13.5 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -15.4 °C
Number of sunny days: 188 days
Number of rainy days: 175 days
Number of snow days: 2 days
Look at detailed online map of Gamchon
* Weather data for Gamchon 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) | 15.5 | 13.8 | 23.5 | 26.8 | 31.5 | 32.1 | 34.1 | 35.3 | 28.8 | 21.8 | 25.0 | 17.9 |
| Average daytime temperature (°C) | 4.1 | 7.9 | 15.9 | 18.0 | 22.1 | 26.9 | 29.0 | 29.7 | 25.2 | 19.7 | 12.2 | 6.3 |
| Average temperature (°C) | -0.3 | 2.8 | 9.9 | 12.7 | 17.2 | 21.9 | 25.2 | 25.7 | 21.7 | 14.7 | 7.5 | 2.3 |
| Average night temperature (°C) | -4.0 | -1.1 | 5.2 | 8.3 | 13.2 | 18.0 | 22.3 | 22.7 | 18.9 | 10.8 | 3.0 | -0.9 |
| Absolute minimum temperature (°C) | -15.4 | -6.6 | -3.5 | 0.9 | 3.8 | 14.9 | 17.7 | 20.9 | 14.1 | 5.0 | -6.7 | -12.2 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 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) | 7.7 | 7.3 | 9.1 | 8.5 | 8.1 | 9.1 | 7.8 | 9.0 | 7.0 | 8.8 | 7.8 | 7.0 |
| Precipitation (mm) | 29 | 31 | 68 | 70 | 152 | 180 | 283 | 234 | 267 | 10 | 65 | 110 |
| Sunny days | 25 | 17 | 20 | 16 | 16 | 11 | 4 | 6 | 4 | 23 | 23 | 23 |
| Rainy days | 5 | 10 | 11 | 14 | 15 | 19 | 27 | 25 | 26 | 8 | 7 | 8 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gamchon is at