Average annual temperature is 13.4 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -14.9 °C
Number of sunny days: 162 days
Number of rainy days: 183 days
Number of snow days: 20 days
Look at detailed online map of Jachau
* Weather data for Jachau 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) | 15.1 | 11.8 | 22.1 | 24.3 | 29.0 | 33.2 | 31.5 | 33.7 | 30.1 | 22.5 | 23.7 | 17.7 |
| Average daytime temperature (°C) | 4.4 | 7.1 | 15.1 | 17.9 | 22.6 | 26.8 | 28.2 | 29.8 | 26.3 | 19.5 | 12.1 | 6.9 |
| Average temperature (°C) | -0.2 | 1.8 | 8.3 | 12.1 | 17.3 | 21.5 | 24.9 | 25.7 | 22.2 | 14.7 | 7.9 | 3.2 |
| Average night temperature (°C) | -4.5 | -1.9 | 3.2 | 7.4 | 13.0 | 17.8 | 22.3 | 22.6 | 19.1 | 10.7 | 4.1 | -0.1 |
| Absolute minimum temperature (°C) | -14.9 | -5.4 | -4.1 | 0.9 | 7.1 | 13.8 | 19.4 | 18.5 | 14.7 | 6.4 | -3.4 | -11.2 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.9 | 7.2 | 8.8 | 7.4 | 7.5 | 8.7 | 6.3 | 9.6 | 7.8 | 8.3 | 6.7 | 5.1 |
| Precipitation (mm) | 49 | 17 | 47 | 105 | 178 | 186 | 514 | 230 | 200 | 16 | 99 | 115 |
| Sunny days | 18 | 21 | 24 | 13 | 11 | 17 | 1 | 3 | 8 | 20 | 16 | 10 |
| Rainy days | 7 | 6 | 7 | 17 | 20 | 13 | 30 | 28 | 22 | 11 | 12 | 10 |
| Snow days | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 11 |
The best time to visit Jachau during the most sunny months:
The largest precipitation sum in Jachau is at