Average annual temperature is 13.6 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -15.3 °C
Number of sunny days: 207 days
Number of rainy days: 153 days
Number of snow days: 5 days
Look at detailed online map of Gosan
* Weather data for Gosan 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) | 12.5 | 12.9 | 24.3 | 26.0 | 33.3 | 34.0 | 33.7 | 35.3 | 30.3 | 22.8 | 24.8 | 16.1 |
| Average daytime temperature (°C) | 3.8 | 8.3 | 17.3 | 19.7 | 24.8 | 29.1 | 29.9 | 30.8 | 26.7 | 20.2 | 11.8 | 5.6 |
| Average temperature (°C) | -1.2 | 2.2 | 9.7 | 13.2 | 19.0 | 23.5 | 25.7 | 26.6 | 22.3 | 13.9 | 6.3 | 1.0 |
| Average night temperature (°C) | -5.3 | -2.5 | 2.8 | 7.1 | 13.3 | 18.6 | 22.2 | 22.9 | 18.5 | 8.8 | 1.2 | -2.7 |
| Absolute minimum temperature (°C) | -15.3 | -6.9 | -3.7 | 0.6 | 4.4 | 14.4 | 18.1 | 17.2 | 13.1 | 3.3 | -7.2 | -12.6 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| 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) | 7.5 | 7.8 | 9.2 | 8.5 | 8.6 | 10.0 | 7.8 | 9.1 | 7.8 | 8.7 | 7.8 | 6.4 |
| Precipitation (mm) | 27 | 11 | 35 | 71 | 141 | 261 | 471 | 377 | 232 | 15 | 47 | 86 |
| Sunny days | 24 | 22 | 23 | 17 | 20 | 8 | 6 | 9 | 14 | 24 | 19 | 21 |
| Rainy days | 5 | 6 | 8 | 13 | 11 | 22 | 25 | 22 | 16 | 7 | 11 | 7 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Gosan is at