Average annual temperature is 13.7 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -15.6 °C
Number of sunny days: 185 days
Number of rainy days: 173 days
Number of snow days: 7 days
Look at detailed online map of Gangchon
* Weather data for Gangchon 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 | 12.4 | 24.3 | 26.2 | 32.2 | 34.5 | 34.0 | 35.2 | 30.6 | 22.9 | 25.2 | 18.6 |
| Average daytime temperature (°C) | 3.9 | 7.6 | 16.7 | 19.6 | 24.4 | 29.1 | 30.0 | 31.2 | 26.8 | 19.9 | 11.7 | 6.1 |
| Average temperature (°C) | -0.8 | 2.0 | 9.5 | 13.2 | 18.6 | 23.4 | 25.8 | 26.6 | 22.6 | 14.3 | 6.8 | 2.0 |
| Average night temperature (°C) | -5.0 | -2.4 | 3.3 | 7.6 | 13.3 | 18.5 | 22.4 | 23.0 | 19.0 | 9.3 | 2.1 | -1.9 |
| Absolute minimum temperature (°C) | -15.6 | -6.7 | -4.1 | 1.2 | 3.9 | 14.2 | 18.7 | 17.3 | 13.1 | 5.1 | -6.9 | -12.3 |
| 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 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.1 | 7.3 | 9.1 | 7.8 | 8.2 | 9.7 | 7.1 | 9.0 | 7.4 | 8.8 | 7.4 | 5.9 |
| Precipitation (mm) | 44 | 9 | 28 | 56 | 114 | 193 | 514 | 306 | 228 | 18 | 47 | 97 |
| Sunny days | 18 | 20 | 23 | 13 | 19 | 14 | 4 | 5 | 9 | 22 | 18 | 20 |
| Rainy days | 9 | 7 | 8 | 17 | 12 | 16 | 27 | 26 | 21 | 9 | 12 | 9 |
| Snow days | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Gangchon is at