Average annual temperature is 12.1 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: -17.8 °C
Number of sunny days: 186 days
Number of rainy days: 173 days
Number of snow days: 6 days
Look at detailed online map of Ijŏn
* Weather data for Ijŏn 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) | 13.6 | 12.0 | 21.7 | 24.8 | 30.9 | 31.7 | 32.9 | 33.3 | 28.0 | 20.5 | 22.7 | 15.8 |
| Average daytime temperature (°C) | 2.2 | 6.1 | 14.3 | 16.1 | 20.9 | 25.6 | 28.1 | 28.2 | 23.6 | 17.9 | 10.3 | 4.4 |
| Average temperature (°C) | -1.8 | 1.3 | 8.4 | 11.1 | 16.1 | 20.8 | 24.1 | 24.5 | 20.3 | 13.2 | 5.7 | 0.5 |
| Average night temperature (°C) | -5.6 | -2.4 | 3.5 | 6.7 | 11.9 | 17.0 | 21.1 | 21.5 | 17.3 | 9.3 | 1.2 | -2.8 |
| Absolute minimum temperature (°C) | -17.8 | -7.8 | -5.4 | -0.2 | 3.6 | 13.6 | 17.0 | 19.0 | 12.2 | 3.6 | -8.9 | -13.9 |
| 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 | 14.4 | 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) | 7.8 | 7.5 | 9.0 | 8.7 | 8.6 | 9.8 | 8.5 | 9.2 | 7.2 | 8.7 | 7.9 | 6.9 |
| Precipitation (mm) | 31 | 19 | 55 | 82 | 161 | 217 | 310 | 262 | 252 | 9 | 55 | 152 |
| Sunny days | 26 | 17 | 22 | 16 | 15 | 9 | 3 | 8 | 6 | 22 | 20 | 22 |
| Rainy days | 4 | 7 | 9 | 14 | 16 | 21 | 28 | 23 | 24 | 9 | 9 | 9 |
| Snow days | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The largest precipitation sum in Ijŏn is at