🇰🇷 Weather in Cheonan

Cheonan sits at approximately 36.8° north latitude, which generally produces a temperate or subtropical climate, with warm summers, mild winters and moderate seasonal variation. Local geography (coast vs. inland, altitude, prevailing winds) shapes the specific weather patterns shown in the forecast above.

Climatically, the best time to visit Cheonan is generally April to June and September to October (Northern Hemisphere spring and autumn) — outside the extremes of summer heat and winter chill. Exact timing depends on what you're after — fewer crowds, specific events, lowest rainfall, or warmest weather. Check the forecast above before planning a short trip.

In the Northern Hemisphere, summer falls in June–August and winter in December–February. Spring runs March–May and autumn runs September–November. Cheonan follows this Northern/Southern Hemisphere pattern based on its latitude. See the sun page for exact daylight hours through the year.