Average annual temperature is 13.1 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -17.0 °C
Number of sunny days: 187 days
Number of rainy days: 166 days
Number of snow days: 12 days
Look at detailed online map of Sonamsan
* Weather data for Sonamsan 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) | 13.0 | 10.7 | 24.8 | 26.4 | 32.7 | 35.0 | 33.1 | 34.2 | 30.2 | 22.1 | 23.9 | 17.9 |
| Average daytime temperature (°C) | 2.4 | 6.4 | 15.3 | 18.8 | 24.6 | 27.9 | 29.4 | 30.2 | 26.2 | 19.3 | 10.6 | 5.1 |
| Average temperature (°C) | -2.3 | 0.9 | 8.4 | 12.7 | 18.6 | 22.5 | 25.5 | 26.0 | 22.3 | 14.5 | 6.1 | 1.3 |
| Average night temperature (°C) | -7.2 | -3.1 | 3.0 | 7.6 | 13.4 | 18.1 | 22.6 | 22.7 | 19.0 | 10.0 | 1.6 | -2.3 |
| Absolute minimum temperature (°C) | -17.0 | -7.0 | -4.0 | 1.0 | 4.9 | 14.3 | 19.9 | 17.0 | 12.6 | 4.4 | -7.5 | -13.9 |
| 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 | 11.2 | 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) | 7.2 | 8.0 | 9.4 | 7.7 | 8.5 | 9.9 | 7.5 | 8.7 | 7.3 | 8.3 | 7.1 | 5.8 |
| Precipitation (mm) | 34 | 2 | 25 | 77 | 126 | 120 | 441 | 253 | 246 | 19 | 80 | 90 |
| Sunny days | 19 | 23 | 23 | 16 | 20 | 14 | 4 | 9 | 8 | 19 | 17 | 15 |
| Rainy days | 7 | 5 | 8 | 14 | 11 | 16 | 27 | 22 | 22 | 12 | 13 | 9 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 |
The largest precipitation sum in Sonamsan is at