Average annual temperature is 13.0 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -16.4 °C
Number of sunny days: 198 days
Number of rainy days: 160 days
Number of snow days: 7 days
Look at detailed online map of Tongsan
* Weather data for Tongsan 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) | 12.9 | 10.9 | 25.5 | 27.7 | 32.0 | 35.0 | 33.6 | 34.4 | 30.7 | 22.5 | 23.7 | 17.4 |
| Average daytime temperature (°C) | 3.0 | 6.9 | 15.9 | 19.5 | 25.0 | 27.7 | 29.7 | 30.3 | 26.5 | 19.4 | 10.7 | 5.2 |
| Average temperature (°C) | -2.2 | 1.0 | 8.3 | 13.0 | 18.5 | 22.2 | 25.6 | 26.0 | 22.4 | 14.0 | 5.7 | 0.8 |
| Average night temperature (°C) | -6.8 | -3.5 | 2.1 | 7.3 | 12.8 | 17.9 | 22.5 | 22.6 | 19.0 | 9.3 | 1.1 | -2.9 |
| Absolute minimum temperature (°C) | -16.4 | -6.7 | -4.5 | 0.2 | 4.5 | 13.3 | 20.2 | 17.5 | 12.8 | 3.1 | -7.1 | -13.4 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 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) | 7.1 | 8.1 | 9.4 | 7.9 | 8.6 | 9.6 | 7.6 | 8.4 | 7.2 | 8.3 | 7.2 | 5.9 |
| Precipitation (mm) | 36 | 1 | 15 | 88 | 133 | 155 | 418 | 267 | 210 | 24 | 105 | 81 |
| Sunny days | 21 | 26 | 24 | 17 | 19 | 12 | 5 | 9 | 10 | 21 | 16 | 18 |
| Rainy days | 8 | 2 | 7 | 13 | 12 | 18 | 26 | 22 | 20 | 10 | 14 | 8 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The largest precipitation sum in Tongsan is at