Average annual temperature is 14.1 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: -14.2 °C
Number of sunny days: 179 days
Number of rainy days: 176 days
Number of snow days: 10 days
Look at detailed online map of Unsan
* Weather data for Unsan 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) | 15.0 | 12.4 | 26.9 | 28.2 | 31.2 | 36.8 | 32.9 | 35.4 | 31.0 | 23.0 | 24.4 | 18.3 |
| Average daytime temperature (°C) | 4.7 | 8.2 | 17.2 | 19.9 | 24.6 | 28.9 | 29.3 | 30.8 | 26.9 | 20.2 | 12.3 | 6.9 |
| Average temperature (°C) | -0.2 | 2.1 | 9.7 | 13.6 | 18.7 | 23.1 | 25.7 | 26.7 | 22.9 | 15.0 | 7.8 | 3.0 |
| Average night temperature (°C) | -4.5 | -2.5 | 3.6 | 8.3 | 13.9 | 18.7 | 22.9 | 23.4 | 19.6 | 10.5 | 3.3 | -0.6 |
| Absolute minimum temperature (°C) | -14.2 | -6.3 | -4.2 | 1.5 | 5.3 | 14.2 | 20.9 | 18.1 | 14.2 | 5.6 | -5.4 | -11.4 |
| 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) | 7.2 | 7.4 | 9.0 | 7.7 | 8.3 | 9.8 | 7.0 | 9.4 | 7.3 | 8.8 | 7.1 | 5.7 |
| Precipitation (mm) | 39 | 7 | 23 | 71 | 160 | 275 | 633 | 364 | 214 | 17 | 82 | 122 |
| Sunny days | 19 | 21 | 22 | 14 | 16 | 11 | 2 | 7 | 11 | 24 | 16 | 16 |
| Rainy days | 8 | 6 | 9 | 16 | 15 | 19 | 29 | 24 | 19 | 7 | 14 | 10 |
| Snow days | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The largest precipitation sum in Unsan is at