Seonwon, South Korea

Full City Profile

89 ft Elevation 27 meters

52°F Avg Temperature 11°C

Seonwon experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 27°F in January while summers reach 75°F in July. The area gets 277 sunny days per year. Annual precipitation totals 63.0 inches. The area receives 5.4 inches of snow annually.

Temperature

27°F Jan (-3°C) 75°F Jul (24°C)

Annual Average	51.8°F
	4% below US avg
January Average	27°F (-3°C)
July Average	75°F (24°C)
Sunny Days	277 days/yr

Geography

Elevation	89 ft (27 m)
Area	16.4 sq mi (42.5 km²)
Population Density	0/sq mi
Coordinates	37.7122°N, 126.4844°W
Timezone	Asia/Seoul

Precipitation & Snow

Annual Rainfall 63.0"

66% above US avg

Snowfall 5.4"

Wettest Month (Jul) 12.50"

Driest Month (Jan) 0.70"

Air Quality

Earthquake History

4 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.3. Most recent: M3.6 on Jan 8, 2023.

Nov 11, 1992	8 km NW of Chunghwa, North Korea	M4.3	150 km
May 11, 2020	32 km E of Koksan, North Korea	M3.8	125 km
Jun 27, 2019	10 km W of Chunghwa, North Korea	M3.6	145 km
Jan 8, 2023	South Korea	M3.6	23 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year	Name	Category	Closest
2020	Bavi	Category 2	154 km
2020	Maysak	Category 1	258 km
2020	Haishen	Category 1	244 km
2019	Lingling	Category 1	115 km
2010	Kompasu	Category 2	57 km
2000	Prapiroon	Category 1	130 km
1999	Olga	Category 1	283 km
1995	Faye	Category 2	221 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	—	—	135 km

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

Nearby Volcanoes

1 volcano within 200 km. Closest: Ch'uga-ryong (101 km).

Name	Type	Elevation	Last Eruption	Distance
Ch'uga-ryong	Shield	452 m (1,483 ft)	Unknown	101 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	27°F (-3°C)	0.7 in	Coldest, Driest
February	29°F (-2°C)	0.8 in
March	39°F (4°C)	1.5 in
April	51°F (11°C)	2.7 in
May	61°F (16°C)	3.6 in
June	69°F (21°C)	4.8 in
July	75°F (24°C)	12.5 in	Wettest
August	76°F (24°C)	11.2 in	Warmest
September	67°F (20°C)	5.7 in
October	56°F (13°C)	1.8 in
November	42°F (5°C)	1.8 in
December	30°F (-1°C)	0.8 in

Seonwon has a seasonal temperature swing of 49°F / from 27°F in January to 76°F in August. Total annual precipitation is 47.9 inches, with July being the wettest month (12.5") and January the driest (0.7").

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