Average annual temperature is 14.3 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: -14.0 °C
Number of sunny days: 198 days
Number of rainy days: 164 days
Number of snow days: 3 days
Look at detailed online map of Wonsan
* Weather data for Wonsan 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) | 15.5 | 15.5 | 23.8 | 26.9 | 33.2 | 35.3 | 33.9 | 36.4 | 30.2 | 23.0 | 25.6 | 18.3 |
| Average daytime temperature (°C) | 5.8 | 9.3 | 17.6 | 19.3 | 23.6 | 29.0 | 29.6 | 30.9 | 26.7 | 20.5 | 13.1 | 7.5 |
| Average temperature (°C) | 0.6 | 3.8 | 10.8 | 13.4 | 18.3 | 23.2 | 25.6 | 26.6 | 22.6 | 15.3 | 8.0 | 3.1 |
| Average night temperature (°C) | -3.2 | -0.4 | 5.4 | 8.1 | 13.9 | 18.8 | 22.8 | 23.5 | 19.3 | 10.8 | 3.7 | -0.3 |
| Absolute minimum temperature (°C) | -14.0 | -5.4 | -3.2 | 2.1 | 6.7 | 15.1 | 18.2 | 21.3 | 14.8 | 5.4 | -5.4 | -10.6 |
| 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 | 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) | 7.7 | 7.5 | 9.0 | 8.3 | 8.1 | 9.5 | 7.4 | 9.4 | 7.6 | 8.8 | 7.7 | 6.9 |
| Precipitation (mm) | 29 | 22 | 49 | 70 | 132 | 151 | 350 | 338 | 195 | 8 | 51 | 72 |
| Sunny days | 25 | 19 | 22 | 16 | 17 | 12 | 3 | 5 | 10 | 25 | 22 | 22 |
| Rainy days | 5 | 8 | 9 | 14 | 14 | 18 | 28 | 26 | 20 | 6 | 8 | 8 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Wonsan is at