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Weather & Climate in Nanhai, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Nanhai has a warm climate with an average annual temperature of 74°F (23°C). Winters average 61°F in January while summers reach 84°F in July. The area gets 272 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 89.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 36 feet.
Temperature
61°F Jan (16°C)
84°F Jul (29°C)
| Annual Average | 73.7°F |
| 36% above US avg | |
| January Average | 61°F (16°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 272 days/yr |
Geography
| Elevation | 36 ft (11 m) |
| Area | 4,412.0 sq mi (11,427.1 km²) |
| Population Density | 0/sq mi |
| Coordinates | 21.4725°N, 111.0268°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.4.
| Sep 16, 2004 | 44 km WSW of Yangjiang, China | M4.4 | 63 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
60 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Ragasa | Category 3 | — | 37 km |
| 2025 | Matmo | Category 2 | — | 93 km |
| 2025 | Tapah | Category 1 | — | 167 km |
| 2025 | Wipha | Category 1 | — | 228 km |
| 2025 | Wutip | Category 1 | — | 239 km |
| 2024 | Yagi | Category 5 | 121 mph | 176 km |
| 2023 | Saola | Category 3 | 81 mph | 124 km |
| 2023 | Koinu | Category 2 | 63 mph | 267 km |
| 2023 | Talim | Category 1 | 69 mph | 33 km |
| 2022 | Chaba | Category 1 | 81 mph | 4 km |
| 2021 | Cempaka | Category 1 | 81 mph | 88 km |
| 2018 | Mangkhut | Category 1 | 86 mph | 92 km |
| 2017 | Hato | Category 3 | 86 mph | 146 km |
| 2017 | Khanun | Category 2 | 81 mph | 77 km |
| 2016 | Sarika | Category 1 | 63 mph | 299 km |
| 2015 | Mujigae | Category 4 | 98 mph | 64 km |
| 2014 | Rammasun | Category 5 | 104 mph | 151 km |
| 2014 | Kalmaegi | Category 1 | 86 mph | 148 km |
| 2013 | Utor | Category 3 | 81 mph | 65 km |
| 2013 | Rumbia | Category 1 | 58 mph | 153 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Hainan Volcanic Field (193 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hainan Volcanic Field | Pyroclastic cone(s) | 196 m (643 ft) | 1933 | 193 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 61°F (16°C) | 1.3 in | Coldest |
| February | 62°F (17°C) | 2.1 in | |
| March | 67°F (20°C) | 2.6 in | |
| April | 74°F (24°C) | 7.0 in | |
| May | 80°F (27°C) | 11.1 in | |
| June | 83°F (28°C) | 12.0 in | |
| July | 84°F (29°C) | 9.6 in | Warmest |
| August | 83°F (28°C) | 12.1 in | Wettest |
| September | 81°F (27°C) | 7.5 in | |
| October | 77°F (25°C) | 4.2 in | |
| November | 70°F (21°C) | 1.8 in | |
| December | 63°F (17°C) | 0.9 in | Driest |
Nanhai has a seasonal temperature swing of 23°F / from 61°F in January to 84°F in July. Total annual precipitation is 72.2 inches, with August being the wettest month (12.1") and December the driest (0.9").