Average annual temperature is 12.2 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -18.0 °C
Number of sunny days: 192 days
Number of rainy days: 166 days
Number of snow days: 7 days
Look at detailed online map of Irŭmsil
* Weather data for Irŭmsil 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) | 12.3 | 11.8 | 22.0 | 23.7 | 31.0 | 31.9 | 32.9 | 33.5 | 28.3 | 21.0 | 22.4 | 14.4 |
| Average daytime temperature (°C) | 2.1 | 6.5 | 14.9 | 17.0 | 22.3 | 26.6 | 28.5 | 29.4 | 25.0 | 18.2 | 10.0 | 4.1 |
| Average temperature (°C) | -2.2 | 1.2 | 8.4 | 11.3 | 17.0 | 21.4 | 24.4 | 25.1 | 20.8 | 12.9 | 5.3 | 0.0 |
| Average night temperature (°C) | -5.9 | -2.8 | 2.9 | 6.2 | 12.2 | 17.1 | 21.2 | 21.8 | 17.3 | 8.5 | 0.9 | -3.2 |
| Absolute minimum temperature (°C) | -18.0 | -7.5 | -5.4 | -0.5 | 3.7 | 13.1 | 17.1 | 17.6 | 11.1 | 2.1 | -8.7 | -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 | 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) | 7.5 | 7.8 | 9.2 | 8.5 | 8.8 | 9.8 | 7.6 | 9.3 | 7.5 | 8.8 | 7.8 | 6.5 |
| Precipitation (mm) | 31 | 10 | 36 | 73 | 134 | 236 | 453 | 231 | 229 | 17 | 57 | 85 |
| Sunny days | 23 | 21 | 23 | 14 | 21 | 8 | 4 | 5 | 11 | 22 | 19 | 21 |
| Rainy days | 6 | 4 | 8 | 16 | 10 | 22 | 27 | 26 | 19 | 9 | 11 | 8 |
| Snow days | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Irŭmsil is at