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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. The area gets 255 sunny days per year, above the national average. 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) |
| Sunny Days | 255 days/yr |
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°W |
| 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").