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Weather & Climate in Sinhyeon, South Korea
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sinhyeon enjoys a temperate climate with an average annual temperature of 56°F (14°C). Winters average 35°F in January while summers reach 75°F in July. The area gets 221 sunny days per year, above the national average. Annual precipitation totals 63.6 inches (wetter than the 38-inch national average). The area receives 1.4 inches of snow annually. The city sits at an elevation of 46 feet.
Temperature
35°F Jan (2°C)
75°F Jul (24°C)
| Annual Average | 56.4°F |
| 4% above US avg | |
| January Average | 35°F (2°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 221 days/yr |
Geography
| Elevation | 46 ft (14 m) |
| Area | 4.2 sq mi (10.9 km²) |
| Population Density | 19,564/sq mi |
| Coordinates | 34.8825°N, 128.6267°W |
| Timezone | Asia/Seoul |
Precipitation & Snow
Air Quality
Earthquake History
11 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.
| Sep 12, 2016 | 6km S of Gyeongju, South Korea | M5.4 | 113 km | 13 km |
| Sep 12, 2016 | 14km SW of Gyeongju, South Korea | M4.9 | 105 km | 10 km |
| Jun 25, 1997 | 3 km SW of Gyeongju, South Korea | M4.7 | 116 km | 10 km |
| Feb 10, 2018 | 5 km SW of Heunghae, South Korea | M4.7 | 146 km | 5 km |
| Jul 5, 2016 | 52 km E of Ulsan, South Korea | M4.7 | 137 km | 10 km |
| Sep 19, 2016 | 10 km SSW of Gyeongju, South Korea | M4.6 | 109 km | 9 km |
| Jun 29, 2005 | 80 km SE of Kyosai, South Korea | M4.5 | 81 km | 15 km |
| Dec 13, 1992 | 66 km E of Ulsan, South Korea | M4.4 | 148 km | 27 km |
| May 13, 2006 | 84 km NNW of Hirado, Japan | M4.3 | 104 km | 20 km |
| Feb 25, 1996 | 76 km N of Hirado, Japan | M4.0 | 124 km | 33 km |
| Sep 21, 2016 | 9km SSE of Gyeongju, South Korea | M3.5 | 112 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
40 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2022 | Hinnamnor | Category 2 | 86 mph | 63 km |
| 2022 | Nanmadol | Category 1 | 81 mph | 231 km |
| 2020 | Haishen | Category 2 | 98 mph | 86 km |
| 2020 | Maysak | Category 2 | 92 mph | 73 km |
| 2019 | Francisco | Category 1 | 75 mph | 286 km |
| 2018 | Kong-rey | Category 1 | 75 mph | 298 km |
| 2018 | Prapiroon | Category 1 | 69 mph | 131 km |
| 2016 | Chaba | Category 2 | 81 mph | 72 km |
| 2015 | Goni | Category 3 | 98 mph | 192 km |
| 2013 | Danas | Category 1 | 75 mph | 132 km |
| 2012 | Sanba | Category 2 | 98 mph | 46 km |
| 2007 | Nari | Category 2 | 86 mph | 120 km |
| 2007 | Usagi | Category 2 | 92 mph | 260 km |
| 2006 | Shanshan | Category 1 | 92 mph | 190 km |
| 2005 | Nabi | Category 2 | 86 mph | 209 km |
| 2004 | Songda | Category 2 | 86 mph | 218 km |
| 2004 | Chaba | Category 2 | 92 mph | 275 km |
| 2004 | Megi | Category 1 | 75 mph | 212 km |
| 2003 | Maemi | Category 3 | 104 mph | 30 km |
| 2003 | Soudelor | Category 1 | 69 mph | 92 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1643 | SEA OF JAPAN | Earthquake | — | — | 105 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 35°F (2°C) | 1.4 in | Coldest |
| February | 38°F (3°C) | 2.1 in | |
| March | 45°F (7°C) | 3.3 in | |
| April | 55°F (13°C) | 6.0 in | |
| May | 62°F (17°C) | 6.4 in | |
| June | 68°F (20°C) | 9.3 in | |
| July | 75°F (24°C) | 11.9 in | Wettest |
| August | 78°F (25°C) | 10.5 in | Warmest |
| September | 70°F (21°C) | 7.0 in | |
| October | 61°F (16°C) | 2.5 in | |
| November | 50°F (10°C) | 2.2 in | |
| December | 40°F (4°C) | 1.0 in | Driest |
Sinhyeon has a seasonal temperature swing of 43°F / from 35°F in January to 78°F in August. Total annual precipitation is 63.6 inches, with July being the wettest month (11.9") and December the driest (1.0").