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Weather & Climate in Mianhu, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mianhu has a warm climate with an average annual temperature of 72°F (22°C). Winters average 59°F in January while summers reach 83°F in July. The area gets 264 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 76.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 46 feet.
Temperature
59°F Jan (15°C)
83°F Jul (28°C)
| Annual Average | 71.5°F |
| 32% above US avg | |
| January Average | 59°F (15°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 264 days/yr |
Geography
| Elevation | 46 ft (14 m) |
| Area | 625.5 sq mi (1,620.1 km²) |
| Population Density | 0/sq mi |
| Coordinates | 23.4410°N, 116.1387°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Aug 4, 1992 | 55 km NW of Hepo, China | M4.6 | 79 km | 10 km |
| Nov 12, 1995 | 49 km N of Hepo, China | M4.3 | 61 km | 10 km |
| Mar 24, 1999 | 33 km ENE of Heyuan, China | M4.1 | 125 km | 10 km |
| May 16, 1991 | 24 km ESE of Haimen, China | M3.9 | 80 km | 10 km |
| Mar 13, 2022 | 37 km W of Shanwei, China | M3.8 | 142 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
55 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Ragasa | Category 4 | — | 282 km |
| 2025 | Podul | Category 1 | — | 272 km |
| 2025 | Wipha | Category 1 | — | 259 km |
| 2025 | Danas | Category 1 | — | 297 km |
| 2023 | Saola | Category 4 | 121 mph | 166 km |
| 2023 | Koinu | Category 3 | 98 mph | 209 km |
| 2023 | Doksuri | Category 2 | 92 mph | 282 km |
| 2020 | Mekkhala | Category 1 | 58 mph | 180 km |
| 2017 | Hato | Category 3 | 86 mph | 267 km |
| 2016 | Meranti | Category 3 | 98 mph | 242 km |
| 2016 | Haima | Category 1 | 69 mph | 135 km |
| 2016 | Nida | Category 1 | 63 mph | 163 km |
| 2015 | Linfa | Category 1 | 58 mph | 73 km |
| 2013 | Usagi | Category 3 | 98 mph | 94 km |
| 2012 | Tembin | Category 2 | 81 mph | 197 km |
| 2010 | Megi | Category 3 | 92 mph | 190 km |
| 2010 | Fanapi | Category 1 | 69 mph | 130 km |
| 2010 | Meranti | Category 1 | 63 mph | 283 km |
| 2009 | Molave | Category 1 | 75 mph | 128 km |
| 2009 | Linfa | Category 1 | 69 mph | 239 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
2 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1918 | GUANGDONG PROVINCE | Eruption + Earthquake | — | 2,000 | 108 km |
| 1640 | SOUTH CHINA SEA | Earthquake | — | — | 101 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 59°F (15°C) | 1.4 in | |
| February | 58°F (14°C) | 2.7 in | Coldest |
| March | 62°F (17°C) | 4.1 in | |
| April | 70°F (21°C) | 6.2 in | |
| May | 76°F (24°C) | 8.4 in | |
| June | 80°F (27°C) | 10.3 in | Wettest |
| July | 83°F (28°C) | 8.3 in | Warmest |
| August | 82°F (28°C) | 9.6 in | |
| September | 80°F (27°C) | 6.0 in | |
| October | 75°F (24°C) | 2.4 in | |
| November | 67°F (20°C) | 1.5 in | |
| December | 60°F (15°C) | 1.3 in | Driest |
Mianhu has a seasonal temperature swing of 25°F / from 58°F in February to 83°F in July. Total annual precipitation is 62.2 inches, with June being the wettest month (10.3") and December the driest (1.3").