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Sanya, China

Full City Profile

1,031,396 Population 1,392/sq mi density
3 ft Elevation 1 meters
78°F Avg Temperature 25°C
Sanya has a warm climate with an average annual temperature of 78°F (26°C). Winters average 70°F in January while summers reach 83°F in July. The area gets 232 sunny days per year. Annual precipitation totals 57.4 inches. The area receives 0.0 inches of snow annually.

Temperature

70°F Jan (21°C) 83°F Jul (28°C)
Annual Average77.6°F
44% above US avg
January Average70°F (21°C)
July Average83°F (28°C)
Sunny Days232 days/yr

Geography

Elevation3 ft (1 m)
Area741.2 sq mi (1,919.6 km²)
Population Density1,392/sq mi
Coordinates18.2544°N, 109.5095°W
TimezoneAsia/Shanghai

Precipitation & Snow

Annual Rainfall 57.4"
51% above US avg
Snowfall 0.0"
Wettest Month (Oct) 11.54"
Driest Month (Feb) 0.91"

Air Quality

Earthquake History

3 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.4. Most recent: M4.1 on Oct 16, 2002.

Jun 5, 1995 122 km NW of Sanya, China M4.4 122 km
May 17, 1999 Hainan, China M4.2 92 km
Oct 16, 2002 104 km SE of Dadonghai, China M4.1 107 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

65 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 5. Most recent: Matmo (2025).

Year Name Category Closest
2025 Matmo Category 2 295 km
2025 Kajiki Category 2 45 km
2025 Bualoi Category 1 193 km
2025 Wutip Category 1 232 km
2024 Yagi Category 4 207 km
2022 Noru Category 4 273 km
2022 Nesat Category 1 290 km
2021 Rai Category 1 188 km
2020 Vamco Category 3 200 km
2017 Doksuri Category 2 119 km
2016 Sarika Category 1 93 km
2014 Rammasun Category 5 242 km
2014 Kalmaegi Category 1 245 km
2013 Wutip Category 3 141 km
2013 Haiyan Category 2 59 km
2013 Rumbia Category 1 265 km
2013 Nari Category 1 240 km
2012 Son-tinh Category 3 106 km
2011 Nesat Category 1 240 km
2010 Mindulle Category 1 234 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Nearby Volcanoes

1 volcano within 200 km. Closest: Hainan Volcanic Field (199 km).

Name Type Elevation Last Eruption Distance
Hainan Volcanic Field Pyroclastic cone(s) 196 m (643 ft) 1933 199 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 70°F (21°C) 1.0 in Coldest
February 71°F (22°C) 0.9 in Driest
March 75°F (24°C) 1.1 in
April 80°F (27°C) 1.9 in
May 83°F (28°C) 4.1 in
June 83°F (29°C) 6.2 in Warmest
July 83°F (28°C) 5.4 in
August 82°F (28°C) 7.5 in
September 81°F (27°C) 10.9 in
October 78°F (26°C) 11.5 in Wettest
November 75°F (24°C) 5.1 in
December 71°F (21°C) 1.7 in

Sanya has a seasonal temperature swing of 14°F / from 70°F in January to 83°F in June. Total annual precipitation is 57.4 inches, with October being the wettest month (11.5") and February the driest (0.9").

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