Average annual temperature is 13.8 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: -15.5 °C
Number of sunny days: 192 days
Number of rainy days: 170 days
Number of snow days: 3 days
Look at detailed online map of Geumsan
* Weather data for Geumsan 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 | 14.7 | 24.0 | 26.0 | 33.6 | 33.8 | 34.9 | 35.4 | 30.4 | 22.6 | 25.0 | 17.7 |
| Average daytime temperature (°C) | 4.0 | 8.1 | 17.1 | 19.0 | 24.0 | 28.8 | 29.9 | 30.9 | 26.5 | 19.9 | 12.1 | 6.0 |
| Average temperature (°C) | -0.6 | 2.5 | 10.5 | 13.1 | 18.5 | 23.1 | 25.7 | 26.5 | 22.3 | 14.6 | 7.0 | 2.1 |
| Average night temperature (°C) | -4.5 | -1.8 | 4.8 | 7.7 | 13.8 | 18.5 | 22.6 | 23.0 | 18.7 | 10.3 | 2.3 | -1.5 |
| Absolute minimum temperature (°C) | -15.5 | -6.7 | -3.5 | 1.4 | 4.5 | 15.6 | 18.2 | 20.0 | 14.1 | 4.8 | -7.0 | -12.1 |
| 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 | 9.7 |
| 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) | 7.6 | 7.4 | 8.9 | 8.2 | 8.5 | 9.8 | 7.4 | 9.3 | 7.5 | 8.8 | 7.9 | 6.5 |
| Precipitation (mm) | 30 | 13 | 54 | 54 | 150 | 209 | 366 | 276 | 223 | 11 | 54 | 89 |
| Sunny days | 23 | 19 | 23 | 15 | 18 | 10 | 5 | 7 | 9 | 21 | 20 | 22 |
| Rainy days | 5 | 9 | 8 | 15 | 13 | 20 | 26 | 24 | 21 | 10 | 10 | 9 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Geumsan is at