Average annual temperature is 13.0 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -15.3 °C
Number of sunny days: 217 days
Number of rainy days: 142 days
Number of snow days: 6 days
Look at detailed online map of Isan-myeon
* Weather data for Isan-myeon 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) | 12.0 | 13.3 | 24.0 | 26.0 | 33.2 | 35.2 | 33.6 | 35.0 | 29.8 | 22.3 | 24.5 | 16.1 |
| Average daytime temperature (°C) | 3.7 | 8.3 | 17.0 | 19.4 | 24.5 | 28.8 | 29.7 | 30.7 | 26.3 | 19.7 | 11.5 | 5.6 |
| Average temperature (°C) | -1.4 | 1.9 | 9.0 | 12.5 | 18.3 | 22.9 | 25.2 | 26.1 | 21.6 | 12.8 | 5.7 | 0.7 |
| Average night temperature (°C) | -5.7 | -2.9 | 1.5 | 5.6 | 11.9 | 17.5 | 21.4 | 22.1 | 17.2 | 7.1 | 0.5 | -3.3 |
| Absolute minimum temperature (°C) | -15.3 | -6.7 | -5.3 | -0.9 | 1.9 | 13.3 | 17.7 | 15.6 | 10.9 | 2.0 | -7.8 | -12.3 |
| 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) | 7.4 | 7.9 | 9.3 | 8.4 | 8.8 | 10.0 | 7.8 | 9.2 | 7.7 | 8.8 | 7.8 | 6.3 |
| Precipitation (mm) | 30 | 8 | 28 | 69 | 133 | 200 | 449 | 246 | 225 | 15 | 32 | 84 |
| Sunny days | 24 | 23 | 24 | 17 | 21 | 12 | 9 | 9 | 13 | 25 | 19 | 21 |
| Rainy days | 4 | 4 | 7 | 13 | 10 | 18 | 22 | 22 | 17 | 6 | 11 | 8 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Isan-myeon is at