Average annual temperature is 14.0 °C
Absolute maximum temperature: 37.4 °C
Absolute minimum temperature: -13.6 °C
Number of sunny days: 200 days
Number of rainy days: 156 days
Number of snow days: 9 days
Look at detailed online map of Hayeon
* Weather data for Hayeon 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) | 14.6 | 11.8 | 26.6 | 28.1 | 30.6 | 37.4 | 33.3 | 35.4 | 31.0 | 23.5 | 24.5 | 18.6 |
| Average daytime temperature (°C) | 4.8 | 8.0 | 16.7 | 19.8 | 24.7 | 29.4 | 29.5 | 31.0 | 27.0 | 20.5 | 12.5 | 7.0 |
| Average temperature (°C) | -0.4 | 1.9 | 9.2 | 13.5 | 18.8 | 23.5 | 25.7 | 26.8 | 22.8 | 15.0 | 7.8 | 2.7 |
| Average night temperature (°C) | -4.9 | -2.8 | 3.1 | 8.1 | 13.8 | 19.0 | 23.1 | 23.5 | 19.5 | 10.5 | 3.3 | -1.0 |
| Absolute minimum temperature (°C) | -13.6 | -5.7 | -4.4 | 1.3 | 5.6 | 15.4 | 20.4 | 17.6 | 13.6 | 6.2 | -4.9 | -11.5 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.2 | 7.5 | 9.2 | 7.6 | 8.3 | 9.9 | 7.0 | 9.1 | 7.2 | 8.4 | 7.1 | 5.5 |
| Precipitation (mm) | 33 | 3 | 31 | 75 | 145 | 207 | 525 | 317 | 267 | 9 | 92 | 115 |
| Sunny days | 19 | 24 | 24 | 16 | 17 | 14 | 4 | 7 | 13 | 27 | 16 | 19 |
| Rainy days | 9 | 4 | 7 | 14 | 14 | 16 | 27 | 24 | 17 | 4 | 13 | 7 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
The best time to visit Hayeon during the most sunny months:
The largest precipitation sum in Hayeon is at