Average annual temperature is 14.4 °C
Absolute maximum temperature: 37.3 °C
Absolute minimum temperature: -14.1 °C
Number of sunny days: 205 days
Number of rainy days: 158 days
Number of snow days: 2 days
Look at detailed online map of Sincheon
* Weather data for Sincheon 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) | 17.1 | 16.7 | 24.9 | 28.4 | 34.2 | 34.4 | 35.3 | 37.3 | 30.6 | 23.8 | 27.3 | 19.8 |
| Average daytime temperature (°C) | 5.7 | 9.7 | 18.2 | 20.1 | 23.8 | 29.0 | 30.1 | 31.3 | 26.8 | 21.4 | 13.9 | 7.8 |
| Average temperature (°C) | 0.3 | 3.6 | 10.9 | 13.8 | 18.1 | 23.1 | 25.9 | 26.9 | 22.8 | 15.2 | 8.0 | 2.9 |
| Average night temperature (°C) | -4.0 | -1.2 | 4.4 | 8.0 | 12.9 | 18.5 | 22.6 | 23.3 | 19.3 | 9.9 | 3.0 | -1.2 |
| Absolute minimum temperature (°C) | -14.1 | -6.1 | -3.8 | 1.4 | 4.4 | 14.9 | 18.4 | 20.9 | 14.7 | 4.7 | -5.6 | -10.7 |
| 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 | 14.5 | 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) | 7.8 | 7.2 | 9.3 | 8.5 | 8.2 | 9.4 | 7.8 | 9.2 | 7.4 | 8.8 | 7.7 | 6.8 |
| Precipitation (mm) | 38 | 23 | 63 | 58 | 151 | 162 | 352 | 216 | 200 | 9 | 49 | 86 |
| Sunny days | 25 | 20 | 21 | 16 | 15 | 13 | 9 | 9 | 9 | 23 | 22 | 23 |
| Rainy days | 4 | 8 | 10 | 14 | 16 | 17 | 22 | 22 | 21 | 8 | 8 | 8 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sincheon is at