Average annual temperature is 10.9 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -18.1 °C
Number of sunny days: 198 days
Number of rainy days: 153 days
Number of snow days: 14 days
Look at detailed online map of Heukseok
* Weather data for Heukseok 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) | 11.1 | 10.9 | 20.8 | 22.0 | 28.8 | 30.0 | 31.1 | 32.2 | 27.3 | 20.4 | 21.5 | 12.7 |
| Average daytime temperature (°C) | 1.0 | 5.4 | 13.3 | 15.5 | 20.7 | 25.0 | 26.9 | 27.8 | 23.7 | 16.9 | 8.8 | 2.7 |
| Average temperature (°C) | -3.3 | 0.1 | 6.9 | 10.0 | 15.6 | 20.1 | 23.1 | 23.9 | 19.7 | 11.6 | 4.1 | -1.2 |
| Average night temperature (°C) | -6.9 | -3.6 | 1.4 | 4.9 | 10.8 | 15.9 | 20.0 | 20.6 | 16.2 | 7.0 | 0.0 | -4.3 |
| Absolute minimum temperature (°C) | -18.1 | -7.5 | -6.8 | -1.9 | 3.3 | 12.4 | 16.1 | 14.6 | 9.8 | 1.3 | -10.0 | -15.8 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 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) | 7.4 | 7.8 | 9.3 | 8.6 | 8.9 | 9.9 | 7.6 | 9.2 | 7.6 | 8.8 | 7.7 | 6.3 |
| Precipitation (mm) | 34 | 10 | 27 | 105 | 154 | 211 | 511 | 242 | 192 | 18 | 46 | 94 |
| Sunny days | 21 | 20 | 25 | 15 | 20 | 11 | 5 | 8 | 12 | 22 | 17 | 22 |
| Rainy days | 4 | 3 | 6 | 15 | 11 | 19 | 26 | 23 | 18 | 9 | 12 | 7 |
| Snow days | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The largest precipitation sum in Heukseok is at