Average annual temperature is 16.1 °C
Absolute maximum temperature: 30.2 °C
Absolute minimum temperature: -6.5 °C
Number of sunny days: 202 days
Number of rainy days: 160 days
Number of snow days: 3 days
Look at detailed online map of Yŏnju
* Weather data for Yŏnju 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) | 15.0 | 11.9 | 16.8 | 17.0 | 20.5 | 25.0 | 28.3 | 30.2 | 28.8 | 24.9 | 22.2 | 16.9 |
| Average daytime temperature (°C) | 7.3 | 9.3 | 12.9 | 15.4 | 18.0 | 22.2 | 25.2 | 28.5 | 26.7 | 21.2 | 14.5 | 10.0 |
| Average temperature (°C) | 5.1 | 7.1 | 11.1 | 13.8 | 17.0 | 21.1 | 24.3 | 27.6 | 25.3 | 19.4 | 12.6 | 8.1 |
| Average night temperature (°C) | 2.3 | 4.6 | 8.9 | 11.9 | 15.9 | 20.1 | 23.2 | 26.5 | 23.8 | 17.3 | 9.9 | 5.6 |
| Absolute minimum temperature (°C) | -6.5 | 0.3 | 3.0 | 7.1 | 12.8 | 17.3 | 20.2 | 24.5 | 19.1 | 13.9 | 2.5 | -2.9 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.8 | 7.3 | 8.6 | 8.0 | 8.2 | 8.7 | 7.7 | 10.2 | 8.1 | 8.8 | 8.2 | 7.0 |
| Precipitation (mm) | 64 | 58 | 40 | 133 | 267 | 310 | 383 | 290 | 284 | 21 | 79 | 84 |
| Sunny days | 23 | 16 | 19 | 14 | 16 | 15 | 8 | 10 | 12 | 25 | 24 | 20 |
| Rainy days | 6 | 12 | 12 | 16 | 15 | 15 | 23 | 21 | 18 | 6 | 6 | 10 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Yŏnju is at