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Weather & Climate in Yacheng, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Yacheng has a warm climate with an average annual temperature of 75°F (24°C). Winters average 67°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 317 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 60.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 30 feet.
Temperature
67°F Jan (19°C)
82°F Jul (28°C)
| Annual Average | 75.4°F |
| 40% above US avg | |
| January Average | 67°F (19°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 317 days/yr |
Geography
| Elevation | 30 ft (9 m) |
| Area | 741.2 sq mi (1,919.6 km²) |
| Population Density | 0/sq mi |
| Coordinates | 18.3760°N, 109.1647°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.4.
| Jun 5, 1995 | 122 km NW of Sanya, China | M4.4 | 87 km | 10 km |
| May 17, 1999 | Hainan, China | M4.2 | 127 km | 33 km |
| Oct 16, 2002 | 104 km SE of Dadonghai, China | M4.1 | 142 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
63 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kajiki | Category 2 | — | 50 km |
| 2025 | Bualoi | Category 1 | — | 190 km |
| 2025 | Wutip | Category 1 | — | 214 km |
| 2024 | Yagi | Category 4 | 121 mph | 208 km |
| 2022 | Noru | Category 4 | 98 mph | 288 km |
| 2021 | Rai | Category 1 | 92 mph | 224 km |
| 2020 | Vamco | Category 3 | 98 mph | 193 km |
| 2017 | Doksuri | Category 2 | 92 mph | 115 km |
| 2016 | Sarika | Category 1 | 69 mph | 104 km |
| 2014 | Rammasun | Category 5 | 104 mph | 245 km |
| 2014 | Kalmaegi | Category 1 | 86 mph | 245 km |
| 2013 | Wutip | Category 3 | 75 mph | 140 km |
| 2013 | Haiyan | Category 2 | 86 mph | 53 km |
| 2013 | Rumbia | Category 1 | 58 mph | 279 km |
| 2013 | Nari | Category 1 | 86 mph | 253 km |
| 2012 | Son-tinh | Category 3 | 98 mph | 101 km |
| 2011 | Nesat | Category 1 | 75 mph | 258 km |
| 2010 | Mindulle | Category 1 | 52 mph | 199 km |
| 2010 | Conson | Category 1 | 81 mph | 11 km |
| 2009 | Ketsana | Category 2 | 81 mph | 290 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 0.8 m (3 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1992 | SOUTH CHINA SEA | Eruption + Earthquake | 0.8 m | — | 130 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 67°F (19°C) | 0.8 in | Coldest, Driest |
| February | 68°F (20°C) | 0.9 in | |
| March | 73°F (23°C) | 1.1 in | |
| April | 78°F (25°C) | 2.3 in | |
| May | 81°F (27°C) | 5.1 in | |
| June | 82°F (28°C) | 6.9 in | Warmest |
| July | 82°F (28°C) | 6.9 in | |
| August | 81°F (27°C) | 9.0 in | |
| September | 79°F (26°C) | 10.6 in | Wettest |
| October | 76°F (25°C) | 9.7 in | |
| November | 72°F (22°C) | 3.7 in | |
| December | 68°F (20°C) | 1.3 in |
Yacheng has a seasonal temperature swing of 15°F / from 67°F in January to 82°F in June. Total annual precipitation is 58.3 inches, with September being the wettest month (10.6") and January the driest (0.8").