Average annual temperature is 15.4 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -9.1 °C
Number of sunny days: 190 days
Number of rainy days: 173 days
Number of snow days: 2 days
Look at detailed online map of Wahyŏn
* Weather data for Wahyŏn 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) | 16.8 | 13.7 | 22.4 | 23.0 | 25.2 | 28.9 | 33.1 | 35.2 | 30.9 | 24.4 | 25.8 | 19.4 |
| Average daytime temperature (°C) | 6.7 | 9.4 | 15.0 | 17.5 | 20.7 | 25.0 | 28.6 | 30.8 | 27.4 | 21.9 | 14.9 | 9.5 |
| Average temperature (°C) | 3.1 | 5.2 | 10.6 | 13.9 | 17.6 | 22.0 | 25.4 | 27.4 | 24.1 | 17.6 | 10.8 | 5.9 |
| Average night temperature (°C) | -0.4 | 1.7 | 6.9 | 10.4 | 14.9 | 19.7 | 23.2 | 24.8 | 21.6 | 14.1 | 7.1 | 2.7 |
| Absolute minimum temperature (°C) | -9.1 | -1.8 | -1.4 | 4.6 | 9.3 | 16.4 | 19.6 | 23.0 | 17.6 | 9.3 | -0.5 | -5.2 |
| 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 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.8 | 7.4 | 8.6 | 7.9 | 7.8 | 8.7 | 7.0 | 10.2 | 8.2 | 8.8 | 8.1 | 7.2 |
| Precipitation (mm) | 49 | 45 | 58 | 180 | 236 | 243 | 426 | 316 | 272 | 12 | 49 | 78 |
| Sunny days | 26 | 19 | 23 | 14 | 13 | 11 | 5 | 4 | 9 | 23 | 23 | 20 |
| Rainy days | 5 | 9 | 8 | 16 | 18 | 19 | 26 | 27 | 21 | 8 | 7 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Wahyŏn is at