Average annual temperature is 14.2 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: -13.0 °C
Number of sunny days: 198 days
Number of rainy days: 163 days
Number of snow days: 4 days
Look at detailed online map of Witŭnsan
* Weather data for Witŭnsan 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) | 15.9 | 15.6 | 24.3 | 27.3 | 29.5 | 32.9 | 34.1 | 35.5 | 30.3 | 23.8 | 25.8 | 19.4 |
| Average daytime temperature (°C) | 6.5 | 10.2 | 17.6 | 19.2 | 23.0 | 27.8 | 29.3 | 30.8 | 27.0 | 21.2 | 14.4 | 8.6 |
| Average temperature (°C) | 0.6 | 3.9 | 10.6 | 13.3 | 17.6 | 22.4 | 25.5 | 26.7 | 22.8 | 15.0 | 8.2 | 3.1 |
| Average night temperature (°C) | -4.1 | -1.4 | 4.8 | 7.9 | 13.1 | 18.3 | 22.5 | 23.6 | 19.4 | 9.5 | 3.1 | -1.4 |
| Absolute minimum temperature (°C) | -13.0 | -5.4 | -4.2 | 0.7 | 6.3 | 14.8 | 19.2 | 21.3 | 14.5 | 4.1 | -4.6 | -9.2 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.8 | 7.7 | 8.8 | 8.0 | 7.7 | 8.6 | 7.0 | 9.3 | 7.5 | 8.6 | 8.1 | 7.1 |
| Precipitation (mm) | 44 | 32 | 62 | 76 | 211 | 207 | 289 | 320 | 243 | 8 | 39 | 71 |
| Sunny days | 25 | 17 | 19 | 16 | 14 | 13 | 4 | 11 | 11 | 24 | 23 | 21 |
| Rainy days | 5 | 11 | 12 | 14 | 17 | 17 | 27 | 20 | 19 | 7 | 7 | 7 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Witŭnsan is at