Sejong

What is the climate like in Sejong?

The best time to visit Sejong is typically May, the year's most comfortable month (6.4/10). Sejong is warmest in August, when daily highs average 88°F (31°C), and coolest in January, when lows fall to about 23°F (-5°C). The wettest month is typically July and the driest is January; the year sees roughly 47 in (1184 mm) of precipitation.

• Best time to visitMay — the year's comfort peak (6.4/10)
• Warmest monthAugust — average high 88°F (31°C)
• Coolest monthJanuary — average low 23°F (-5°C)
• Wettest monthJuly (11 in (272 mm))
• Driest monthJanuary (0.9 in (24 mm))
• Annual precipitation47 in (1184 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromTaejon, 34 km away (1973-2025)