Cheonan

What is the climate like in Cheonan?

The best time to visit Cheonan is typically May, the year's most comfortable month (6.3/10). Cheonan is warmest in August, when daily highs average 88°F (31°C), and coolest in January, when lows fall to about 22°F (-6°C). The wettest month is typically July and the driest is January; the year sees roughly 48 in (1209 mm) of precipitation.

• Best time to visitMay — the year's comfort peak (6.3/10)
• Warmest monthAugust — average high 88°F (31°C)
• Coolest monthJanuary — average low 22°F (-6°C)
• Wettest monthJuly (11 in (280 mm))
• Driest monthJanuary (0.9 in (24 mm))
• Annual precipitation48 in (1209 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromOsan K 55, 32 km away (1953-1967)