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Weather & Climate in Shanmen, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Shanmen enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 40°F in January while summers reach 81°F in July. The area gets 238 sunny days per year, above the national average. Annual precipitation totals 54.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,142 feet.
Temperature
40°F Jan (5°C)
81°F Jul (27°C)
| Annual Average | 61.4°F |
| 14% above US avg | |
| January Average | 40°F (5°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 238 days/yr |
Geography
| Elevation | 1,142 ft (348 m) |
| Area | 1,135.5 sq mi (2,941.0 km²) |
| Population Density | 3/sq mi |
| Coordinates | 27.2250°N, 110.6928°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Jun 3, 1991 | 6 km S of Xiaoshajiang, China | M3.8 | 28 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 2.1 in | Coldest |
| February | 43°F (6°C) | 2.8 in | |
| March | 50°F (10°C) | 4.1 in | |
| April | 61°F (16°C) | 7.3 in | |
| May | 70°F (21°C) | 8.7 in | Wettest |
| June | 76°F (24°C) | 8.4 in | |
| July | 81°F (27°C) | 4.8 in | Warmest |
| August | 80°F (27°C) | 4.7 in | |
| September | 73°F (23°C) | 3.0 in | |
| October | 64°F (18°C) | 3.9 in | |
| November | 54°F (12°C) | 2.9 in | |
| December | 45°F (7°C) | 1.6 in | Driest |
Shanmen has a seasonal temperature swing of 41°F / from 40°F in January to 81°F in July. Total annual precipitation is 54.2 inches, with May being the wettest month (8.7") and December the driest (1.6").