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Weather & Climate in Haikou, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Haikou has a warm climate with an average annual temperature of 77°F (25°C). Winters average 64°F in January while summers reach 84°F in July. The area gets 287 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 79.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 30 feet.
Temperature
64°F Jan (18°C)
84°F Jul (29°C)
| Annual Average | 76.9°F |
| 42% above US avg | |
| January Average | 64°F (18°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 287 days/yr |
Geography
| Elevation | 30 ft (9 m) |
| Area | 889.6 sq mi (2,304.0 km²) |
| Population Density | 3,230/sq mi |
| Coordinates | 20.0342°N, 110.3465°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
6 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.5.
| Jan 10, 1995 | 64 km WNW of Lincheng, China | M5.5 | 126 km | 33 km |
| Dec 31, 1994 | 77 km NNW of Lincheng, China | M5.3 | 119 km | 33 km |
| Mar 23, 1995 | 60 km NNW of Lincheng, China | M4.4 | 102 km | 33 km |
| Apr 15, 1995 | 68 km NNW of Lincheng, China | M4.3 | 108 km | 33 km |
| May 7, 1995 | 63 km NNW of Lincheng, China | M4.2 | 106 km | 10 km |
| Feb 25, 1996 | 49 km WNW of Lincheng, China | M4.1 | 117 km | 20 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
74 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Ragasa | Category 3 | — | 211 km |
| 2025 | Matmo | Category 2 | — | 86 km |
| 2025 | Kajiki | Category 2 | — | 262 km |
| 2025 | Wutip | Category 1 | — | 133 km |
| 2024 | Yagi | Category 5 | 121 mph | 16 km |
| 2024 | Yinxing | Category 3 | 86 mph | 294 km |
| 2023 | Saola | Category 2 | 69 mph | 267 km |
| 2023 | Talim | Category 1 | 69 mph | 130 km |
| 2022 | Chaba | Category 1 | 81 mph | 150 km |
| 2021 | Cempaka | Category 1 | 81 mph | 248 km |
| 2018 | Mangkhut | Category 1 | 75 mph | 253 km |
| 2017 | Khanun | Category 1 | 58 mph | 123 km |
| 2016 | Sarika | Category 1 | 69 mph | 124 km |
| 2015 | Mujigae | Category 4 | 98 mph | 118 km |
| 2014 | Rammasun | Category 5 | 104 mph | 30 km |
| 2014 | Kalmaegi | Category 1 | 86 mph | 32 km |
| 2013 | Utor | Category 2 | 81 mph | 213 km |
| 2013 | Haiyan | Category 1 | 81 mph | 251 km |
| 2013 | Rumbia | Category 1 | 58 mph | 79 km |
| 2012 | Kai-tak | Category 1 | 75 mph | 103 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Hainan Volcanic Field (19 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hainan Volcanic Field | Pyroclastic cone(s) | 196 m (643 ft) | 1933 | 19 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 64°F (18°C) | 0.9 in | Coldest, Driest |
| February | 66°F (19°C) | 1.4 in | |
| March | 71°F (22°C) | 2.0 in | |
| April | 77°F (25°C) | 3.9 in | |
| May | 82°F (28°C) | 7.2 in | |
| June | 84°F (29°C) | 9.8 in | |
| July | 84°F (29°C) | 9.8 in | Warmest |
| August | 83°F (28°C) | 10.6 in | Wettest |
| September | 81°F (27°C) | 9.5 in | |
| October | 78°F (26°C) | 7.7 in | |
| November | 72°F (22°C) | 2.8 in | |
| December | 67°F (19°C) | 1.3 in |
Haikou has a seasonal temperature swing of 21°F / from 64°F in January to 84°F in July. Total annual precipitation is 66.8 inches, with August being the wettest month (10.6") and January the driest (0.9").