Average annual temperature is 14.5 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -12.6 °C
Number of sunny days: 217 days
Number of rainy days: 146 days
Number of snow days: 2 days
Look at detailed online map of Ŏhyŏn
* Weather data for Ŏhyŏn 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) | 16.2 | 14.8 | 22.0 | 27.0 | 27.9 | 31.2 | 33.3 | 34.3 | 29.7 | 23.9 | 25.3 | 18.6 |
| Average daytime temperature (°C) | 6.0 | 8.2 | 14.3 | 17.2 | 20.6 | 24.9 | 28.4 | 28.6 | 25.4 | 20.5 | 13.6 | 7.8 |
| Average temperature (°C) | 2.0 | 4.3 | 9.9 | 13.1 | 17.4 | 21.9 | 25.5 | 26.0 | 22.9 | 16.3 | 9.4 | 4.2 |
| Average night temperature (°C) | -1.5 | 0.7 | 5.6 | 9.1 | 14.2 | 19.1 | 23.0 | 23.8 | 20.4 | 12.6 | 5.5 | 1.1 |
| Absolute minimum temperature (°C) | -12.6 | -2.0 | -1.4 | 4.6 | 9.4 | 14.6 | 19.3 | 20.6 | 15.5 | 7.6 | -4.1 | -9.3 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| 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) | 7.6 | 7.5 | 9.1 | 9.0 | 9.0 | 10.3 | 8.7 | 9.5 | 7.2 | 8.8 | 8.1 | 7.2 |
| Precipitation (mm) | 44 | 37 | 48 | 55 | 155 | 130 | 260 | 242 | 232 | 10 | 33 | 134 |
| Sunny days | 23 | 19 | 23 | 18 | 21 | 14 | 11 | 7 | 8 | 26 | 23 | 24 |
| Rainy days | 7 | 9 | 8 | 12 | 10 | 16 | 20 | 24 | 22 | 5 | 6 | 7 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The largest precipitation sum in Ŏhyŏn is at