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Sanmenpo, China

Full City Profile

367 ft Elevation 112 meters
76°F Avg Temperature 24°C
Sanmenpo has a warm climate with an average annual temperature of 76°F (24°C). Winters average 64°F in January while summers reach 84°F in July. The area gets 268 sunny days per year. Annual precipitation totals 65.7 inches. The area receives 0.0 inches of snow annually.

Temperature

64°F Jan (18°C) 84°F Jul (29°C)
Annual Average76.0°F
41% above US avg
January Average64°F (18°C)
July Average84°F (29°C)
Sunny Days268 days/yr

Geography

Elevation367 ft (112 m)
Area949.5 sq mi (2,459.2 km²)
Population Density0/sq mi
Coordinates19.7166°N, 110.5581°W
TimezoneAsia/Shanghai

Precipitation & Snow

Annual Rainfall 65.7"
73% above US avg
Snowfall 0.0"
Wettest Month (Aug) 10.70"
Driest Month (Jan) 0.90"

Air Quality

Earthquake History

5 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.4. Most recent: M4.2 on May 17, 1999.

Mar 23, 1995 60 km NNW of Lincheng, China M4.4 139 km
Apr 15, 1995 68 km NNW of Lincheng, China M4.3 146 km
May 7, 1995 63 km NNW of Lincheng, China M4.2 143 km
May 17, 1999 Hainan, China M4.2 147 km
Feb 25, 1996 49 km WNW of Lincheng, China M4.1 143 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year Name Category Closest
2025 Ragasa Category 3 238 km
2025 Matmo Category 2 99 km
2025 Kajiki Category 2 238 km
2025 Wutip Category 1 166 km
2024 Yagi Category 5 33 km
2024 Yinxing Category 3 257 km
2023 Saola Category 2 279 km
2023 Talim Category 1 164 km
2022 Chaba Category 1 150 km
2021 Rai Category 1 292 km
2021 Cempaka Category 1 261 km
2018 Mangkhut Category 1 286 km
2017 Khanun Category 2 138 km
2016 Sarika Category 1 105 km
2015 Mujigae Category 4 131 km
2014 Rammasun Category 5 50 km
2014 Kalmaegi Category 1 54 km
2013 Haiyan Category 2 249 km
2013 Utor Category 2 207 km
2013 Rumbia Category 1 71 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Nearby Volcanoes

1 volcano within 200 km. Closest: Hainan Volcanic Field (40 km).

Name Type Elevation Last Eruption Distance
Hainan Volcanic Field Pyroclastic cone(s) 196 m (643 ft) 1933 40 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 64°F (18°C) 0.9 in Coldest, Driest
February 67°F (19°C) 1.3 in
March 72°F (22°C) 1.8 in
April 78°F (25°C) 3.7 in
May 82°F (28°C) 7.3 in
June 84°F (29°C) 9.6 in
July 84°F (29°C) 9.6 in Warmest
August 83°F (28°C) 10.7 in Wettest
September 81°F (27°C) 10.0 in
October 78°F (25°C) 8.2 in
November 72°F (22°C) 3.0 in
December 67°F (19°C) 1.3 in

Sanmenpo has a seasonal temperature swing of 20°F / from 64°F in January to 84°F in July. Total annual precipitation is 67.4 inches, with August being the wettest month (10.7") and January the driest (0.9").

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