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Weather & Climate in Gangnan, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Gangnan enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 41°F in January while summers reach 83°F in July. The area gets 241 sunny days per year, above the national average. Annual precipitation totals 49.4 inches (wetter than the 38-inch national average). The area receives 5.3 inches of snow annually. The city sits at an elevation of 148 feet.
Temperature
41°F Jan (5°C)
83°F Jul (28°C)
| Annual Average | 61.3°F |
| 14% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 241 days/yr |
Geography
| Elevation | 148 ft (45 m) |
| Area | 28.3 sq mi (73.3 km²) |
| Population Density | 0/sq mi |
| Coordinates | 31.2403°N, 119.3007°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Hurricane History
8 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Bebinca | Category 1 | 75 mph | 171 km |
| 2022 | Muifa | Category 1 | 86 mph | 228 km |
| 2019 | Lekima | Category 2 | 69 mph | 230 km |
| 2005 | Khanun | Category 2 | 75 mph | 126 km |
| 1997 | Winnie | Category 1 | 81 mph | 257 km |
| 1990 | Abe | Category 2 | 63 mph | 127 km |
| 1985 | Mamie | Category 1 | 75 mph | 221 km |
| 1984 | Ed | Category 1 | — | 284 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 | — | — | 107 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 1.7 in | |
| February | 41°F (5°C) | 2.6 in | Coldest |
| March | 48°F (9°C) | 3.6 in | |
| April | 60°F (15°C) | 4.6 in | |
| May | 69°F (21°C) | 5.0 in | |
| June | 76°F (24°C) | 7.5 in | Wettest |
| July | 83°F (28°C) | 6.4 in | Warmest |
| August | 82°F (28°C) | 4.8 in | |
| September | 73°F (23°C) | 4.7 in | |
| October | 64°F (18°C) | 2.6 in | |
| November | 53°F (11°C) | 2.2 in | |
| December | 42°F (6°C) | 1.3 in | Driest |
Gangnan has a seasonal temperature swing of 42°F / from 41°F in February to 83°F in July. Total annual precipitation is 47.0 inches, with June being the wettest month (7.5") and December the driest (1.3").