Koesan

What is the climate like in Koesan?

The best time to visit Koesan is typically May, the year's most comfortable month (6.1/10). Koesan is warmest in August, when daily highs average 86°F (30°C), and coolest in January, when lows fall to about 21°F (-6°C). The wettest month is typically July and the driest is January; the year sees roughly 49 in (1249 mm) of precipitation.

• Best time to visitMay — the year's comfort peak (6.1/10)
• Warmest monthAugust — average high 86°F (30°C)
• Coolest monthJanuary — average low 21°F (-6°C)
• Wettest monthJuly (11 in (281 mm))
• Driest monthJanuary (1.0 in (24 mm))
• Annual precipitation49 in (1249 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromTaejon, 67 km away (1973-2025)