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 Average | 48.7°F |
| 10% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 71°F (22°C) |
Geography
| Elevation | 640 ft (195 m) |
| Area | 183.4 sq mi (474.9 km²) |
| Population Density | 135/sq mi |
| Coordinates | 38.8558°N, 127.4181°E |
| Timezone | Asia/Pyongyang |
Precipitation & Snow
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").