Weather & Climate in Kosan, North Korea

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Kosan experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 23°F in January while summers reach 71°F in July. Annual precipitation totals 44.7 inches. The area receives 2.4 inches of snow annually. The city sits at an elevation of 640 feet.

Temperature

23°F Jan (-5°C) 71°F Jul (22°C)
Annual Average48.7°F
10% below US avg
January Average23°F (-5°C)
July Average71°F (22°C)

Geography

Elevation640 ft (195 m)
Area183.4 sq mi (474.9 km²)
Population Density135/sq mi
Coordinates38.8558°N, 127.4181°E
TimezoneAsia/Pyongyang

Precipitation & Snow

Annual Rainfall 44.7"
18% above US avg
Snowfall 2.4"
Wettest Month (Jul) 11.57"
Driest Month (Jan) 0.67"

Air Quality

Earthquake History

2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.3.

Nov 11, 1992 8 km NW of Chunghwa, North Korea M4.3 145 km 10 km
May 11, 2020 32 km E of Koksan, North Korea M3.8 35 km 10 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.

Hurricane History

8 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.

Year Name Category Max Wind Closest
2020 Bavi Category 1 81 mph 229 km
2020 Maysak Category 1 81 mph 256 km
2020 Haishen Category 1 69 mph 254 km
2019 Lingling Category 1 69 mph 221 km
2010 Kompasu Category 1 69 mph 86 km
2003 Maemi Category 1 69 mph 289 km
2000 Prapiroon Category 1 69 mph 267 km
1995 Faye Category 1 46 mph 255 km
Source: NOAA IBTrACS (Category 1+, 1980-2026).

Nearby Volcanoes

1 volcano within 200 km. Closest: Ch'uga-ryong (59 km).

Name Type Elevation Last Eruption Distance
Ch'uga-ryong Shield 452 m (1,483 ft) Unknown 59 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 23°F (-5°C) 0.7 in Coldest, Driest
February 27°F (-3°C) 0.8 in
March 36°F (2°C) 1.3 in
April 49°F (9°C) 2.2 in
May 58°F (15°C) 3.0 in
June 65°F (18°C) 4.7 in
July 71°F (22°C) 11.6 in Wettest
August 72°F (22°C) 9.9 in Warmest
September 63°F (17°C) 6.0 in
October 53°F (11°C) 1.9 in
November 40°F (4°C) 1.7 in
December 28°F (-2°C) 0.9 in

Kosan has a seasonal temperature swing of 49°F / from 23°F in January to 72°F in August. Total annual precipitation is 44.7 inches, with July being the wettest month (11.6") and January the driest (0.7").

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