Average annual temperature is 7.8 °C
Absolute maximum temperature: 29.7 °C
Absolute minimum temperature: -25.0 °C
Number of sunny days: 166 days
Number of rainy days: 175 days
Number of snow days: 24 days
Look at detailed online map of Haean
* Weather data for Haean 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) | 7.3 | 7.4 | 17.2 | 20.5 | 23.8 | 27.3 | 29.4 | 29.7 | 25.2 | 18.1 | 17.7 | 10.0 |
| Average daytime temperature (°C) | -3.2 | 1.6 | 9.8 | 12.5 | 17.9 | 21.9 | 25.6 | 25.0 | 21.2 | 14.5 | 5.1 | -1.9 |
| Average temperature (°C) | -7.7 | -3.3 | 3.5 | 7.0 | 12.9 | 17.2 | 21.5 | 20.9 | 16.9 | 9.0 | 0.5 | -6.2 |
| Average night temperature (°C) | -12.3 | -6.6 | -1.4 | 2.4 | 8.4 | 13.0 | 18.3 | 17.9 | 13.5 | 4.7 | -3.1 | -10.1 |
| Absolute minimum temperature (°C) | -23.2 | -11.6 | -9.4 | -4.4 | 2.0 | 8.7 | 15.3 | 11.8 | 5.6 | -1.3 | -12.4 | -25.0 |
| 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) | 9.8 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 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) | 7.2 | 8.0 | 9.0 | 7.6 | 9.4 | 9.8 | 8.2 | 7.7 | 7.6 | 8.2 | 6.5 | 5.7 |
| Precipitation (mm) | 49 | 7 | 21 | 93 | 114 | 167 | 256 | 288 | 104 | 25 | 86 | 121 |
| Sunny days | 20 | 20 | 22 | 7 | 17 | 7 | 3 | 7 | 11 | 18 | 17 | 17 |
| Rainy days | 2 | 0 | 9 | 22 | 14 | 23 | 28 | 24 | 19 | 13 | 12 | 9 |
| Snow days | 9 | 8 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
The largest precipitation sum in Haean is at