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Weather & Climate in Sansha, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sansha has a warm climate with an average annual temperature of 80°F (27°C). Winters average 74°F in January while summers reach 84°F in July / relatively mild seasonal variation. The area gets 228 sunny days per year, above the national average. Annual precipitation totals 59.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 30 feet.
Temperature
74°F Jan (23°C)
84°F Jul (29°C)
| Annual Average | 80.1°F |
| 48% above US avg | |
| January Average | 74°F (23°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 228 days/yr |
Geography
| Elevation | 30 ft (9 m) |
| Area | 733.5 sq mi (1,899.9 km²) |
| Population Density | 2/sq mi |
| Coordinates | 16.8391°N, 112.3406°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Hurricane History
73 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kajiki | Category 2 | — | 138 km |
| 2025 | Matmo | Category 1 | — | 298 km |
| 2025 | Bualoi | Category 1 | — | 118 km |
| 2024 | Yagi | Category 5 | 121 mph | 263 km |
| 2024 | Yinxing | Category 3 | 98 mph | 200 km |
| 2024 | Trami | Category 1 | 63 mph | 104 km |
| 2022 | Noru | Category 4 | 98 mph | 143 km |
| 2022 | Nesat | Category 2 | 86 mph | 67 km |
| 2021 | Rai | Category 2 | 104 mph | 166 km |
| 2020 | Vamco | Category 4 | 98 mph | 135 km |
| 2020 | Saudel | Category 1 | 75 mph | 253 km |
| 2017 | Doksuri | Category 2 | 92 mph | 92 km |
| 2016 | Sarika | Category 1 | 69 mph | 83 km |
| 2014 | Rammasun | Category 4 | 98 mph | 210 km |
| 2014 | Kalmaegi | Category 1 | 81 mph | 280 km |
| 2013 | Wutip | Category 3 | 75 mph | 18 km |
| 2013 | Utor | Category 3 | 81 mph | 295 km |
| 2013 | Haiyan | Category 3 | 98 mph | 184 km |
| 2013 | Nari | Category 1 | 86 mph | 160 km |
| 2013 | Rumbia | Category 1 | — | 286 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 74°F (23°C) | 0.8 in | Coldest |
| February | 75°F (24°C) | 0.5 in | |
| March | 78°F (26°C) | 0.4 in | Driest |
| April | 82°F (28°C) | 1.7 in | |
| May | 84°F (29°C) | 3.1 in | Warmest |
| June | 84°F (29°C) | 8.7 in | |
| July | 84°F (29°C) | 6.6 in | |
| August | 84°F (29°C) | 9.7 in | |
| September | 82°F (28°C) | 10.2 in | |
| October | 81°F (27°C) | 10.7 in | Wettest |
| November | 78°F (26°C) | 5.5 in | |
| December | 75°F (24°C) | 1.5 in |
Sansha has a seasonal temperature swing of 10°F / from 74°F in January to 84°F in May. Total annual precipitation is 59.4 inches, with October being the wettest month (10.7") and March the driest (0.4").