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Weather & Climate in Sandao, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sandao has a warm climate with an average annual temperature of 76°F (24°C). Winters average 65°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 320 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 50.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 246 feet.
Temperature
65°F Jan (19°C)
82°F Jul (28°C)
| Annual Average | 75.8°F |
| 40% above US avg | |
| January Average | 65°F (19°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 320 days/yr |
Geography
| Elevation | 246 ft (75 m) |
| Area | 38.7 sq mi (100.3 km²) |
| Population Density | 152/sq mi |
| Coordinates | 18.4670°N, 109.6644°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 | 123 km | 10 km |
| May 17, 1999 | Hainan, China | M4.2 | 75 km | 33 km |
| Oct 16, 2002 | 104 km SE of Dadonghai, China | M4.1 | 119 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 | — | 266 km |
| 2025 | Kajiki | Category 2 | — | 74 km |
| 2025 | Bualoi | Category 1 | — | 222 km |
| 2025 | Wutip | Category 1 | — | 212 km |
| 2024 | Yagi | Category 4 | 121 mph | 180 km |
| 2022 | Noru | Category 2 | 98 mph | 298 km |
| 2022 | Nesat | Category 1 | 81 mph | 284 km |
| 2021 | Rai | Category 1 | 92 mph | 194 km |
| 2020 | Vamco | Category 3 | 81 mph | 229 km |
| 2017 | Doksuri | Category 2 | 92 mph | 146 km |
| 2016 | Sarika | Category 1 | 69 mph | 64 km |
| 2015 | Mujigae | Category 4 | 98 mph | 297 km |
| 2014 | Rammasun | Category 5 | 104 mph | 214 km |
| 2014 | Kalmaegi | Category 1 | 86 mph | 216 km |
| 2013 | Wutip | Category 3 | 75 mph | 168 km |
| 2013 | Haiyan | Category 2 | 86 mph | 87 km |
| 2013 | Rumbia | Category 1 | 58 mph | 236 km |
| 2013 | Nari | Category 1 | 86 mph | 263 km |
| 2012 | Son-tinh | Category 3 | 98 mph | 135 km |
| 2012 | Kai-tak | Category 1 | 75 mph | 292 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Hainan Volcanic Field (171 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hainan Volcanic Field | Pyroclastic cone(s) | 196 m (643 ft) | 1933 | 171 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 65°F (19°C) | 0.9 in | Coldest, Driest |
| February | 69°F (21°C) | 0.9 in | |
| March | 73°F (23°C) | 1.1 in | |
| April | 78°F (26°C) | 2.3 in | |
| May | 81°F (27°C) | 5.1 in | |
| June | 82°F (28°C) | 7.0 in | Warmest |
| July | 82°F (28°C) | 6.8 in | |
| August | 81°F (27°C) | 8.8 in | |
| September | 79°F (26°C) | 11.0 in | Wettest |
| October | 77°F (25°C) | 10.4 in | |
| November | 72°F (22°C) | 4.2 in | |
| December | 68°F (20°C) | 1.4 in |
Sandao has a seasonal temperature swing of 17°F / from 65°F in January to 82°F in June. Total annual precipitation is 59.9 inches, with September being the wettest month (11.0") and January the driest (0.9").