Average annual temperature is 12.1 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -18.3 °C
Number of sunny days: 184 days
Number of rainy days: 170 days
Number of snow days: 11 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) | 11.7 | 9.3 | 22.7 | 25.8 | 27.7 | 33.6 | 32.2 | 34.0 | 30.5 | 22.5 | 22.4 | 15.6 |
| Average daytime temperature (°C) | 1.8 | 5.8 | 13.3 | 17.5 | 22.5 | 25.9 | 28.6 | 29.2 | 26.2 | 19.4 | 9.7 | 4.2 |
| Average temperature (°C) | -3.3 | 0.0 | 6.8 | 11.7 | 17.1 | 21.4 | 24.9 | 25.4 | 21.9 | 13.8 | 4.8 | -0.2 |
| Average night temperature (°C) | -8.0 | -4.2 | 1.4 | 6.9 | 12.1 | 17.7 | 22.0 | 22.0 | 18.2 | 8.9 | 0.5 | -4.3 |
| Absolute minimum temperature (°C) | -18.3 | -7.7 | -4.2 | 1.1 | 5.0 | 14.1 | 18.8 | 17.4 | 12.7 | 2.7 | -7.2 | -14.8 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 7.0 | 8.4 | 9.0 | 7.4 | 9.2 | 9.2 | 7.7 | 8.6 | 7.8 | 8.3 | 6.9 | 6.3 |
| Precipitation (mm) | 48 | 3 | 23 | 127 | 159 | 201 | 368 | 324 | 129 | 46 | 93 | 76 |
| Sunny days | 21 | 26 | 24 | 14 | 20 | 9 | 4 | 7 | 9 | 19 | 13 | 18 |
| Rainy days | 5 | 2 | 7 | 16 | 11 | 21 | 27 | 24 | 21 | 12 | 15 | 9 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The largest precipitation sum in Wonsan is at