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Weather & Climate in Wŏnju, South Korea
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Wŏnju experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 24°F in January while summers reach 75°F in July. The area gets 245 sunny days per year, above the national average. Annual precipitation totals 50.6 inches (wetter than the 38-inch national average). The area receives 2.9 inches of snow annually. The city sits at an elevation of 436 feet.
Temperature
24°F Jan (-4°C)
75°F Jul (24°C)
| Annual Average | 51.3°F |
| 5% below US avg | |
| January Average | 24°F (-4°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 245 days/yr |
Geography
| Elevation | 436 ft (133 m) |
| Area | 335.0 sq mi (867.6 km²) |
| Population Density | 994/sq mi |
| Coordinates | 37.3514°N, 127.9453°W |
| Timezone | Asia/Seoul |
Precipitation & Snow
Air Quality
Earthquake History
6 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Dec 13, 1996 | 20 km W of T’aebaek, South Korea | M4.8 | 76 km | 10 km |
| Jan 20, 2007 | 25 km NNE of Pyeongchang, South Korea | M4.7 | 54 km | 10 km |
| Apr 19, 2019 | 50 km NE of Tonghae, South Korea | M4.4 | 150 km | 10 km |
| Jan 23, 1996 | 40 km ENE of Santyoku, South Korea | M4.3 | 148 km | 57 km |
| May 14, 2023 | 45 km NE of Tonghae, South Korea | M3.9 | 145 km | 13 km |
| Jan 29, 2020 | 21 km WNW of Mungyeong, South Korea | M3.5 | 74 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
13 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2022 | Hinnamnor | Category 1 | 81 mph | 251 km |
| 2020 | Bavi | Category 2 | 81 mph | 281 km |
| 2020 | Maysak | Category 1 | 86 mph | 123 km |
| 2020 | Haishen | Category 1 | 81 mph | 110 km |
| 2019 | Lingling | Category 2 | 75 mph | 249 km |
| 2012 | Sanba | Category 1 | 81 mph | 251 km |
| 2010 | Kompasu | Category 2 | 69 mph | 106 km |
| 2003 | Maemi | Category 2 | 86 mph | 169 km |
| 2000 | Prapiroon | Category 1 | 69 mph | 252 km |
| 1999 | Olga | Category 1 | 63 mph | 296 km |
| 1995 | Faye | Category 2 | 69 mph | 91 km |
| 1991 | Caitlin | Category 1 | 75 mph | 287 km |
| 1987 | Dinah | Category 1 | 86 mph | 268 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Ch'uga-ryong (122 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Ch'uga-ryong | Shield | 452 m (1,483 ft) | Unknown | 122 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-4°C) | 0.8 in | Coldest, Driest |
| February | 29°F (-2°C) | 1.1 in | |
| March | 39°F (4°C) | 1.9 in | |
| April | 52°F (11°C) | 3.2 in | |
| May | 62°F (16°C) | 3.7 in | |
| June | 69°F (21°C) | 5.6 in | |
| July | 75°F (24°C) | 13.3 in | Wettest |
| August | 75°F (24°C) | 10.5 in | Warmest |
| September | 66°F (19°C) | 6.1 in | |
| October | 54°F (12°C) | 1.8 in | |
| November | 41°F (5°C) | 1.7 in | |
| December | 29°F (-2°C) | 1.0 in |
Wŏnju has a seasonal temperature swing of 51°F / from 24°F in January to 75°F in August. Total annual precipitation is 50.5 inches, with July being the wettest month (13.3") and January the driest (0.8").