Average annual temperature is 12.7 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -17.9 °C
Number of sunny days: 190 days
Number of rainy days: 165 days
Number of snow days: 10 days
Look at detailed online map of Heuneungnalmaeul
* Weather data for Heuneungnalmaeul 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) | 12.5 | 10.7 | 23.9 | 27.1 | 30.4 | 35.2 | 33.4 | 34.2 | 30.7 | 22.3 | 23.3 | 16.2 |
| Average daytime temperature (°C) | 2.2 | 6.3 | 15.1 | 18.4 | 23.9 | 26.9 | 29.3 | 29.8 | 26.2 | 19.1 | 9.9 | 4.5 |
| Average temperature (°C) | -2.8 | 0.6 | 8.2 | 12.5 | 18.0 | 22.0 | 25.5 | 25.9 | 22.3 | 14.1 | 5.3 | 0.3 |
| Average night temperature (°C) | -7.4 | -3.5 | 2.5 | 7.5 | 13.0 | 17.8 | 22.6 | 22.7 | 18.9 | 9.4 | 0.9 | -3.6 |
| Absolute minimum temperature (°C) | -17.9 | -6.9 | -3.6 | 1.4 | 6.1 | 14.0 | 20.2 | 18.7 | 12.6 | 4.1 | -7.5 | -14.4 |
| 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) | 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) | 7.1 | 8.1 | 9.1 | 7.5 | 8.6 | 9.2 | 7.2 | 8.3 | 7.3 | 8.0 | 6.9 | 5.9 |
| Precipitation (mm) | 32 | 1 | 19 | 95 | 151 | 225 | 450 | 308 | 184 | 48 | 168 | 82 |
| Sunny days | 21 | 27 | 23 | 14 | 22 | 9 | 6 | 7 | 7 | 19 | 17 | 18 |
| Rainy days | 4 | 1 | 8 | 16 | 9 | 21 | 25 | 24 | 23 | 12 | 12 | 10 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The largest precipitation sum in Heuneungnalmaeul is at