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Weather & Climate in Gancheng, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Gancheng has a warm climate with an average annual temperature of 79°F (26°C). Winters average 67°F in January while summers reach 85°F in July / relatively mild seasonal variation. The area gets 315 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 46.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 20 feet.
Temperature
67°F Jan (19°C)
85°F Jul (30°C)
| Annual Average | 78.6°F |
| 46% above US avg | |
| January Average | 67°F (19°C) |
| July Average | 85°F (30°C) |
| Sunny Days | 315 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 70.0 sq mi (181.2 km²) |
| Population Density | 0/sq mi |
| Coordinates | 18.8516°N, 108.6404°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.4.
| Jun 5, 1995 | 122 km NW of Sanya, China | M4.4 | 12 km | 10 km |
| Feb 25, 1996 | 49 km WNW of Lincheng, China | M4.1 | 141 km | 20 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 | Matmo | Category 2 | — | 288 km |
| 2025 | Kajiki | Category 2 | — | 87 km |
| 2025 | Bualoi | Category 1 | — | 195 km |
| 2025 | Wutip | Category 1 | — | 168 km |
| 2024 | Yagi | Category 4 | 121 mph | 165 km |
| 2023 | Talim | Category 1 | 69 mph | 294 km |
| 2020 | Vamco | Category 2 | 75 mph | 219 km |
| 2017 | Doksuri | Category 2 | 92 mph | 150 km |
| 2016 | Sarika | Category 1 | 69 mph | 134 km |
| 2016 | Mirinae | Category 1 | 52 mph | 297 km |
| 2014 | Rammasun | Category 5 | 104 mph | 229 km |
| 2014 | Kalmaegi | Category 1 | 86 mph | 220 km |
| 2013 | Wutip | Category 2 | 75 mph | 171 km |
| 2013 | Haiyan | Category 2 | 86 mph | 32 km |
| 2013 | Rumbia | Category 1 | — | 293 km |
| 2012 | Son-tinh | Category 3 | 98 mph | 114 km |
| 2012 | Kai-tak | Category 1 | 75 mph | 283 km |
| 2011 | Nesat | Category 1 | 75 mph | 279 km |
| 2010 | Mindulle | Category 1 | 52 mph | 164 km |
| 2010 | Conson | Category 1 | 81 mph | 78 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 0.8 m (3 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1992 | SOUTH CHINA SEA | Eruption + Earthquake | 0.8 m | — | 116 km |
Source: NOAA/NCEI Historical Tsunami Database.