Seoul, South Korea

Full City Profile

10,349,312 Population 44,287/sq mi density

125 ft Elevation 38 meters

54°F Avg Temperature 12°C

Seoul experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 26°F in January while summers reach 77°F in July. The area gets 272 sunny days per year. Annual precipitation totals 64.3 inches. The area receives 6.3 inches of snow annually.

Temperature

26°F Jan (-4°C) 77°F Jul (25°C)

Annual Average	53.9°F
	0% below US avg
January Average	26°F (-4°C)
July Average	77°F (25°C)
Sunny Days	272 days/yr

Geography

Elevation	125 ft (38 m)
Area	233.7 sq mi (605.3 km²)
Population Density	44,287/sq mi
Coordinates	37.5660°N, 126.9784°W
Timezone	Asia/Seoul

Precipitation & Snow

Annual Rainfall 64.3"

69% above US avg

Snowfall 6.3"

Wettest Month (Jul) 12.52"

Driest Month (Jan) 0.91"

Air Quality

Earthquake History

4 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.7. Most recent: M3.6 on Jan 8, 2023.

Jan 20, 2007	25 km NNE of Pyeongchang, South Korea	M4.7	132 km
May 11, 2020	32 km E of Koksan, North Korea	M3.8	131 km
Jan 8, 2023	South Korea	M3.6	70 km
Jan 29, 2020	21 km WNW of Mungyeong, South Korea	M3.5	133 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

10 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 2.

Year	Name	Category	Closest
2020	Bavi	Category 2	200 km
2020	Maysak	Category 1	212 km
2020	Haishen	Category 1	198 km
2019	Lingling	Category 1	161 km
2012	Sanba	Category 1	295 km
2010	Kompasu	Category 2	63 km
2003	Maemi	Category 2	257 km
2000	Prapiroon	Category 1	169 km
1999	Olga	Category 1	277 km
1995	Faye	Category 2	175 km

Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

1 tsunami recorded within 500 km.

Year	Location	Cause	Max Wave	Deaths	Distance
1700	YELLOW SEA	Earthquake	—	—	126 km

Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

1 volcano within 200 km. Closest: Ch'uga-ryong (90 km).

Name	Type	Elevation	Last Eruption	Distance
Ch'uga-ryong	Shield	452 m (1,483 ft)	Unknown	90 km

Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	26°F (-4°C)	0.9 in	Coldest, Driest
February	31°F (-1°C)	1.0 in
March	40°F (5°C)	1.9 in
April	53°F (12°C)	3.1 in
May	62°F (17°C)	3.8 in
June	71°F (21°C)	5.3 in
July	77°F (25°C)	12.5 in	Warmest, Wettest
August	77°F (25°C)	12.2 in
September	69°F (20°C)	5.9 in
October	57°F (14°C)	2.1 in
November	43°F (6°C)	2.1 in
December	31°F (-0°C)	1.0 in

Seoul has a seasonal temperature swing of 52°F / from 26°F in January to 77°F in July. Total annual precipitation is 51.8 inches, with July being the wettest month (12.5") and January the driest (0.9").

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