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Weather & Climate in Dainan, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Dainan enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 41°F in January while summers reach 83°F in July. The area gets 245 sunny days per year, above the national average. Annual precipitation totals 54.7 inches (wetter than the 38-inch national average). The area receives 3.6 inches of snow annually. The city sits at an elevation of 30 feet.
Temperature
41°F Jan (5°C)
83°F Jul (28°C)
| Annual Average | 62.5°F |
| 16% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 245 days/yr |
Geography
| Elevation | 30 ft (9 m) |
| Area | 2,326.7 sq mi (6,026.1 km²) |
| Population Density | 0/sq mi |
| Coordinates | 31.1815°N, 118.4311°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Jan 19, 2011 | 15 km NNE of Anqing, China | M4.9 | 140 km | 10 km |
| Sep 18, 2024 | 29 km E of Hefei, China | M4.9 | 113 km | 10 km |
| Sep 13, 2024 | 35 km NW of Chaohu, China | M4.2 | 106 km | 10 km |
| Apr 6, 2018 | 27 km NW of Chizhou, China | M3.3 | 114 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
6 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Bebinca | Category 1 | — | 254 km |
| 2019 | Lekima | Category 2 | 69 mph | 280 km |
| 2005 | Khanun | Category 2 | 75 mph | 194 km |
| 1997 | Winnie | Category 1 | 81 mph | 293 km |
| 1990 | Abe | Category 2 | 63 mph | 199 km |
| 1985 | Mamie | Category 1 | 63 mph | 295 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1930 | JIANGSU PROVINCE | Earthquake | — | — | 146 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 1.5 in | Coldest |
| February | 41°F (5°C) | 2.6 in | |
| March | 49°F (9°C) | 3.9 in | |
| April | 60°F (16°C) | 4.9 in | |
| May | 70°F (21°C) | 5.2 in | |
| June | 76°F (25°C) | 7.7 in | Wettest |
| July | 83°F (28°C) | 6.8 in | Warmest |
| August | 82°F (28°C) | 4.6 in | |
| September | 74°F (23°C) | 4.3 in | |
| October | 64°F (18°C) | 3.0 in | |
| November | 53°F (11°C) | 2.3 in | |
| December | 42°F (6°C) | 1.3 in | Driest |
Dainan has a seasonal temperature swing of 42°F / from 41°F in January to 83°F in July. Total annual precipitation is 48.1 inches, with June being the wettest month (7.7") and December the driest (1.3").