Cheonan Climate: Weather by Month and Best Time to Visit
Best months for Cheonan: October, May, June, April.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 3°C | -6°C | 22 mm | 4 | – | – | 5.0 |
| February | 6°C | -4°C | 31 mm | 4 | – | – | 5.5 |
| March | 12°C | 1°C | 47 mm | 6 | – | – | 6.5 |
| April | 19°C | 7°C | 77 mm | 7 | – | – | 7.6 |
| May | 24°C | 13°C | 89 mm | 8 | – | – | 8.0 |
| June | 28°C | 18°C | 131 mm | 9 | – | – | 7.7 |
| July | 29°C | 22°C | 262 mm | 17 | – | – | 6.0 |
| August | 30°C | 22°C | 235 mm | 16 | – | – | 6.0 |
| September | 26°C | 17°C | 140 mm | 9 | – | – | 7.6 |
| October | 20°C | 9°C | 58 mm | 5 | – | – | 8.1 |
| November | 13°C | 3°C | 44 mm | 7 | – | – | 6.7 |
| December | 5°C | -4°C | 24 mm | 5 | – | – | 5.3 |