Average annual temperature is 14.8 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -12.4 °C
Number of sunny days: 196 days
Number of rainy days: 165 days
Number of snow days: 4 days
Look at detailed online map of Tongjŏn
* Weather data for Tongjŏn 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) | 16.9 | 15.8 | 24.2 | 27.9 | 31.5 | 33.5 | 34.9 | 36.3 | 30.6 | 24.2 | 27.7 | 20.0 |
| Average daytime temperature (°C) | 7.0 | 10.5 | 17.8 | 19.7 | 23.5 | 28.5 | 29.9 | 31.4 | 27.4 | 21.8 | 15.1 | 9.2 |
| Average temperature (°C) | 1.1 | 4.3 | 11.0 | 14.0 | 18.3 | 23.2 | 25.9 | 27.3 | 23.3 | 15.7 | 9.0 | 3.9 |
| Average night temperature (°C) | -3.5 | -0.9 | 5.4 | 8.8 | 14.0 | 19.2 | 23.0 | 24.0 | 19.8 | 10.5 | 3.8 | -0.4 |
| Absolute minimum temperature (°C) | -12.4 | -5.2 | -3.4 | 2.3 | 7.1 | 15.7 | 19.6 | 21.4 | 15.5 | 5.8 | -4.3 | -8.1 |
| 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) | 7.8 | 7.6 | 8.7 | 7.9 | 7.6 | 8.9 | 7.1 | 9.5 | 7.4 | 8.5 | 8.2 | 7.0 |
| Precipitation (mm) | 41 | 38 | 63 | 84 | 236 | 169 | 244 | 321 | 259 | 6 | 44 | 72 |
| Sunny days | 26 | 20 | 21 | 15 | 13 | 12 | 3 | 6 | 9 | 25 | 23 | 23 |
| Rainy days | 4 | 8 | 10 | 15 | 18 | 18 | 28 | 25 | 21 | 6 | 6 | 6 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The largest precipitation sum in Tongjŏn is at