Asan, South Korea

Full City Profile

97,749 Population 467/sq mi density

89 ft Elevation 27 meters

53°F Avg Temperature 12°C

Asan experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 26°F in January while summers reach 76°F in July. The area gets 244 sunny days per year. Annual precipitation totals 50.5 inches. The area receives 3.6 inches of snow annually.

Temperature

26°F Jan (-3°C) 76°F Jul (25°C)

Annual Average	52.7°F
	2% below US avg
January Average	26°F (-3°C)
July Average	76°F (25°C)
Sunny Days	244 days/yr

Geography

Elevation	89 ft (27 m)
Area	209.4 sq mi (542.2 km²)
Population Density	467/sq mi
Coordinates	36.7836°N, 127.0042°W
Timezone	Asia/Seoul

Precipitation & Snow

Annual Rainfall 50.5"

33% above US avg

Snowfall 3.6"

Wettest Month (Jul) 12.01"

Driest Month (Jan) 1.10"

Air Quality

Earthquake History

3 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.4. Most recent: M4.4 on Jun 11, 2024.

Jun 11, 2024	3 km NW of Puan, South Korea	M4.4	117 km
Jan 8, 2023	South Korea	M3.6	129 km
Jan 29, 2020	21 km WNW of Mungyeong, South Korea	M3.5	89 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year	Name	Category	Closest
2022	Hinnamnor	Category 1	265 km
2020	Bavi	Category 2	198 km
2020	Haishen	Category 1	188 km
2020	Maysak	Category 1	207 km
2019	Lingling	Category 2	187 km
2016	Chaba	Category 1	283 km
2012	Sanba	Category 2	216 km
2010	Kompasu	Category 2	99 km
2007	Nari	Category 1	256 km
2003	Maemi	Category 2	204 km
2002	Rusa	Category 1	290 km
2000	Prapiroon	Category 1	179 km
1999	Olga	Category 1	198 km
1995	Faye	Category 2	145 km
1987	Dinah	Category 1	299 km
1987	Thelma	Category 1	288 km
1985	Kit	Category 1	282 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	—	—	55 km

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

Nearby Volcanoes

1 volcano within 200 km. Closest: Ch'uga-ryong (174 km).

Name	Type	Elevation	Last Eruption	Distance
Ch'uga-ryong	Shield	452 m (1,483 ft)	Unknown	174 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	26°F (-3°C)	1.1 in	Coldest, Driest
February	30°F (-1°C)	1.3 in
March	40°F (4°C)	2.0 in
April	53°F (11°C)	3.5 in
May	62°F (17°C)	3.7 in
June	70°F (21°C)	5.5 in
July	76°F (25°C)	12.0 in	Wettest
August	77°F (25°C)	10.4 in	Warmest
September	68°F (20°C)	5.8 in
October	56°F (13°C)	2.1 in
November	43°F (6°C)	2.1 in
December	31°F (-0°C)	1.2 in

Asan has a seasonal temperature swing of 51°F / from 26°F in January to 77°F in August. Total annual precipitation is 50.5 inches, with July being the wettest month (12.0") and January the driest (1.1").

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