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Sejong
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Sejong Weather and climate
Data source：Meteostat
Update date：2025-09
Sejong year round climate
- Spring (March–May): 44–64°F on average, mild climate with gradually increasing rainfall. March and April tend to be drier. Common activities: Picnics, outings, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
- Summer (June–August): 71–80°F on average, hot and humid with abundant rainfall, especially in July. Common activities: Indoor activities, visiting summer resorts. Recommended clothing: Light and breathable clothing, sun hat, rain gear.
- Autumn (September–November): 44–73°F on average, comfortable and pleasant with decreasing rainfall and dry weather. Common activities: Maple leaf viewing, hiking. Recommended clothing: Light jacket or cardigan, comfortable trousers.
- Winter (December–February): -33–33°F on average, cold and dry with occasional snowfall. Common activities: Skiing (requires travel to surrounding areas), indoor leisure activities. Recommended clothing: Warm jacket, hat, scarf, gloves.
Sejong climatological average
Annual average temperature: approx. 55.4°F / Annual rainfall: approx. 1252 mm / Summer humidity: 70%–80% / Rainiest month: July
Sejong monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
28.6°F
21.5
February
33.6°F
24
March
44.6°F
53.5
April
56.3°F
60.3
May
64.4°F
87.3
June
73°F
131.9
July
78.4°F
331.8
August
80.1°F
230.1
September
73°F
161.4
October
57.4°F
67.4
November
46°F
51.3
December
31.6°F
31.8
Sejong weather for the next seven days
10/24
Friday
Sunny
65.1°F/51.3°F
10/25
Saturday
Partly Cloudy
64.6°F/51.2°F
10/26
Sunday
Patchy rain nearby
64.5°F/51.9°F
10/27
Monday
Sunny
50.8°F/38.4°F
10/28
Tuesday
Sunny
50.5°F/33°F
10/29
Wednesday
Sunny
55.5°F/33.5°F
10/30
Thursday
Partly Cloudy
63.4°F/41.1°F
