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Weather & Climate in Sanjiang, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sanjiang enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 49°F in January while summers reach 83°F in July. The area gets 249 sunny days per year, above the national average. Annual precipitation totals 77.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 358 feet.
Temperature
49°F Jan (10°C)
83°F Jul (28°C)
| Annual Average | 67.6°F |
| 25% above US avg | |
| January Average | 49°F (10°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 249 days/yr |
Geography
| Elevation | 358 ft (109 m) |
| Area | 1,030.0 sq mi (2,667.6 km²) |
| Population Density | 0/sq mi |
| Coordinates | 24.7206°N, 112.2944°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Jul 31, 2016 | 31 km S of Babu, China | M4.9 | 105 km | 25 km |
| Jul 8, 2016 | 11 km E of Chenzhou, China | M4.4 | 148 km | 10 km |
| Jun 23, 2025 | 13 km N of Qingyuan, China | M4.0 | 126 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 |
| 2018 | Mangkhut | Category 1 | 75 mph | 300 km |
| 2017 | Hato | Category 2 | 86 mph | 250 km |
| 2012 | Vicente | Category 2 | 69 mph | 242 km |
| 2003 | Dujuan | Category 2 | 69 mph | 250 km |
| 1999 | Sam | Category 1 | 63 mph | 293 km |
| 1995 | Kent | Category 2 | 58 mph | 137 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 49°F (10°C) | 2.0 in | Coldest |
| February | 52°F (11°C) | 3.5 in | |
| March | 58°F (15°C) | 5.0 in | |
| April | 68°F (20°C) | 8.1 in | |
| May | 75°F (24°C) | 10.7 in | Wettest |
| June | 80°F (27°C) | 9.6 in | |
| July | 83°F (28°C) | 5.7 in | Warmest |
| August | 82°F (28°C) | 6.7 in | |
| September | 79°F (26°C) | 3.7 in | |
| October | 71°F (22°C) | 2.8 in | |
| November | 61°F (16°C) | 2.0 in | |
| December | 53°F (12°C) | 1.7 in | Driest |
Sanjiang has a seasonal temperature swing of 34°F / from 49°F in January to 83°F in July. Total annual precipitation is 61.5 inches, with May being the wettest month (10.7") and December the driest (1.7").