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Weather & Climate in Mashan, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mashan enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 43°F in January while summers reach 84°F in July. The area gets 242 sunny days per year, above the national average. Annual precipitation totals 56.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 36 feet.
Temperature
43°F Jan (6°C)
84°F Jul (29°C)
| Annual Average | 62.6°F |
| 16% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 242 days/yr |
Geography
| Elevation | 36 ft (11 m) |
| Area | 3,196.6 sq mi (8,279.1 km²) |
| Population Density | 0/sq mi |
| Coordinates | 30.0794°N, 120.6580°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Hurricane History
22 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Bebinca | Category 1 | 81 mph | 132 km |
| 2022 | Muifa | Category 2 | 92 mph | 137 km |
| 2021 | Chanthu | Category 2 | 98 mph | 269 km |
| 2020 | Hagupit | Category 1 | 81 mph | 268 km |
| 2019 | Lekima | Category 3 | 104 mph | 65 km |
| 2019 | Mitag | Category 1 | 81 mph | 222 km |
| 2015 | Chan-hom | Category 3 | 98 mph | 180 km |
| 2012 | Haikui | Category 1 | 75 mph | 206 km |
| 2007 | Wipha | Category 2 | 69 mph | 270 km |
| 2005 | Khanun | Category 3 | 86 mph | 21 km |
| 2005 | Matsa | Category 1 | 81 mph | 249 km |
| 2004 | Rananim | Category 2 | 92 mph | 198 km |
| 2000 | Prapiroon | Category 1 | 81 mph | 236 km |
| 2000 | Jelawat | Category 1 | 75 mph | 140 km |
| 1997 | Winnie | Category 1 | 86 mph | 114 km |
| 1994 | Fred | Category 2 | 86 mph | 229 km |
| 1994 | Doug | Category 1 | 81 mph | 242 km |
| 1990 | Abe | Category 2 | 81 mph | 20 km |
| 1985 | Mamie | Category 1 | 75 mph | 195 km |
| 1985 | Jeff | Category 1 | 75 mph | 216 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1991 | AOSHAN | Meteorological | 3.0 m | — | 143 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 2.1 in | Coldest |
| February | 43°F (6°C) | 3.0 in | |
| March | 50°F (10°C) | 4.1 in | |
| April | 60°F (16°C) | 4.6 in | |
| May | 69°F (21°C) | 5.8 in | |
| June | 76°F (24°C) | 7.3 in | Wettest |
| July | 84°F (29°C) | 5.0 in | Warmest |
| August | 82°F (28°C) | 5.2 in | |
| September | 75°F (24°C) | 5.9 in | |
| October | 65°F (19°C) | 2.4 in | |
| November | 55°F (13°C) | 2.0 in | |
| December | 44°F (7°C) | 1.7 in | Driest |
Mashan has a seasonal temperature swing of 41°F / from 43°F in January to 84°F in July. Total annual precipitation is 49.1 inches, with June being the wettest month (7.3") and December the driest (1.7").