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Weather & Climate in Sunan, North Korea
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sunan experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 19°F in January while summers reach 74°F in July. The area gets 261 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 41.6 inches. The area receives 2.0 inches of snow annually. The city sits at an elevation of 121 feet.
Temperature
19°F Jan (-7°C)
74°F Jul (23°C)
| Annual Average | 48.6°F |
| 10% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 261 days/yr |
Geography
| Elevation | 121 ft (37 m) |
| Area | 65.5 sq mi (169.6 km²) |
| Population Density | 560/sq mi |
| Coordinates | 39.2032°N, 125.6931°W |
| Timezone | Asia/Pyongyang |
Precipitation & Snow
Air Quality
Earthquake History
3 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 | 31 km | 10 km |
| May 11, 2020 | 32 km E of Koksan, North Korea | M3.8 | 127 km | 10 km |
| Jun 27, 2019 | 10 km W of Chunghwa, North Korea | M3.6 | 39 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
4 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 | 77 km |
| 2019 | Lingling | Category 1 | 69 mph | 151 km |
| 2010 | Kompasu | Category 1 | 58 mph | 179 km |
| 2000 | Prapiroon | Category 1 | 69 mph | 218 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Ch'uga-ryong (172 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Ch'uga-ryong | Shield | 452 m (1,483 ft) | Unknown | 172 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 0.7 in | Coldest |
| February | 25°F (-4°C) | 0.7 in | |
| March | 36°F (2°C) | 1.0 in | |
| April | 49°F (10°C) | 2.1 in | |
| May | 60°F (16°C) | 2.9 in | |
| June | 69°F (20°C) | 4.6 in | |
| July | 74°F (23°C) | 11.2 in | Wettest |
| August | 74°F (23°C) | 9.5 in | Warmest |
| September | 64°F (18°C) | 5.0 in | |
| October | 52°F (11°C) | 1.8 in | |
| November | 38°F (3°C) | 1.5 in | |
| December | 24°F (-4°C) | 0.6 in | Driest |
Sunan has a seasonal temperature swing of 55°F / from 19°F in January to 74°F in August. Total annual precipitation is 41.6 inches, with July being the wettest month (11.2") and December the driest (0.6").