Whether you're visiting Chungcheongnam-Do in South Korea during the peak of August (31°C (88°F)) or the cooler months around January (4°C (39°F)), knowing what to pack starts with understanding the local climate. Our overview is based on data from Cheonan, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
The weather in Chungcheongnam-Do during April, May and October is comfortably warm, with average temperatures ranging from 20°C (68°F) to 26°C (79°F).
The hottest season always takes place in July and August. The colder months are generally January, February and December.
When it comes to rainfall, Chungcheongnam-Do sees significant variations throughout the year. July tends to be the wettest, receiving 264 mm (10 in) of rain, while January is much drier with just 25 mm (1 in). Travelers should note that the rainy season falls during July and August, bringing substantial precipitation ranging from 240 mm (9.4 in) to 264 mm (10 in) monthly.
Visitors hoping to maximize their time in the sun should consider planning their trip for May, when daylight hours are at their peak.
