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Weather & Climate in Haitangwan, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Haitangwan has a warm climate with an average annual temperature of 78°F (25°C). Winters average 67°F in January while summers reach 83°F in July / relatively mild seasonal variation. The area gets 318 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 65.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 30 feet.
Temperature
67°F Jan (20°C)
83°F Jul (29°C)
| Annual Average | 77.6°F |
| 44% above US avg | |
| January Average | 67°F (20°C) |
| July Average | 83°F (29°C) |
| Sunny Days | 318 days/yr |
Geography
| Elevation | 30 ft (9 m) |
| Area | 68.4 sq mi (177.1 km²) |
| Population Density | 0/sq mi |
| Coordinates | 18.4034°N, 109.7500°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 | 134 km | 10 km |
| May 17, 1999 | Hainan, China | M4.2 | 65 km | 33 km |
| Oct 16, 2002 | 104 km SE of Dadonghai, China | M4.1 | 109 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
71 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Matmo | Category 2 | — | 267 km |
| 2025 | Kajiki | Category 2 | — | 73 km |
| 2025 | Bualoi | Category 1 | — | 220 km |
| 2025 | Wutip | Category 1 | — | 222 km |
| 2024 | Yagi | Category 4 | 121 mph | 184 km |
| 2022 | Noru | Category 2 | 98 mph | 291 km |
| 2022 | Nesat | Category 1 | 81 mph | 273 km |
| 2021 | Rai | Category 1 | 92 mph | 183 km |
| 2020 | Vamco | Category 3 | 81 mph | 229 km |
| 2017 | Doksuri | Category 2 | 92 mph | 142 km |
| 2016 | Sarika | Category 1 | 69 mph | 68 km |
| 2015 | Mujigae | Category 4 | 98 mph | 294 km |
| 2014 | Rammasun | Category 5 | 104 mph | 219 km |
| 2014 | Kalmaegi | Category 1 | 86 mph | 219 km |
| 2013 | Wutip | Category 3 | 75 mph | 163 km |
| 2013 | Haiyan | Category 2 | 86 mph | 89 km |
| 2013 | Rumbia | Category 1 | 58 mph | 236 km |
| 2013 | Nari | Category 1 | 86 mph | 257 km |
| 2012 | Son-tinh | Category 3 | 98 mph | 135 km |
| 2012 | Kai-tak | Category 1 | 75 mph | 295 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Hainan Volcanic Field (174 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hainan Volcanic Field | Pyroclastic cone(s) | 196 m (643 ft) | 1933 | 174 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).