Average annual temperature is 13.9 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: -15.4 °C
Number of sunny days: 179 days
Number of rainy days: 180 days
Number of snow days: 6 days
Look at detailed online map of Gasan-myeon
* Weather data for Gasan-myeon 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) | 15.3 | 14.4 | 23.3 | 26.0 | 33.2 | 33.6 | 34.4 | 35.1 | 30.3 | 22.2 | 24.4 | 17.2 |
| Average daytime temperature (°C) | 4.0 | 8.0 | 16.9 | 18.8 | 23.5 | 28.6 | 29.5 | 30.6 | 26.3 | 19.7 | 11.9 | 5.9 |
| Average temperature (°C) | -0.3 | 2.7 | 10.5 | 13.0 | 18.3 | 23.0 | 25.6 | 26.5 | 22.4 | 14.9 | 7.3 | 2.3 |
| Average night temperature (°C) | -4.1 | -1.3 | 5.0 | 7.9 | 13.9 | 18.5 | 22.7 | 23.2 | 19.0 | 10.8 | 2.8 | -1.0 |
| Absolute minimum temperature (°C) | -15.4 | -6.4 | -3.0 | 1.5 | 4.2 | 15.7 | 18.5 | 20.3 | 14.5 | 5.3 | -7.0 | -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 | 14.3 | 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.6 | 7.4 | 8.9 | 8.2 | 8.3 | 9.8 | 7.2 | 9.4 | 7.5 | 8.8 | 7.8 | 6.5 |
| Precipitation (mm) | 30 | 14 | 46 | 58 | 128 | 173 | 357 | 292 | 219 | 16 | 52 | 91 |
| Sunny days | 21 | 18 | 19 | 14 | 16 | 12 | 4 | 8 | 7 | 20 | 19 | 21 |
| Rainy days | 7 | 10 | 12 | 16 | 15 | 18 | 27 | 23 | 23 | 11 | 11 | 7 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Gasan-myeon is at