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Weather & Climate in Sanjiao, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sanjiao has a warm climate with an average annual temperature of 74°F (23°C). Winters average 59°F in January while summers reach 84°F in July. The area gets 284 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 87.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 10 feet.
Temperature
59°F Jan (15°C)
84°F Jul (29°C)
| Annual Average | 73.5°F |
| 36% above US avg | |
| January Average | 59°F (15°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 284 days/yr |
Geography
| Elevation | 10 ft (3 m) |
| Area | 49.5 sq mi (128.1 km²) |
| Population Density | 0/sq mi |
| Coordinates | 22.6850°N, 113.4275°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.
| Sep 26, 1997 | 4 km NNW of Sanshui, China | M4.2 | 80 km | 33 km |
| Jun 23, 2025 | 13 km N of Qingyuan, China | M4.0 | 132 km | 10 km |
| Jan 4, 2020 | 14 km SW of Tai O, Hong Kong | M3.8 | 66 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
54 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Ragasa | Category 4 | — | 145 km |
| 2025 | Tapah | Category 1 | — | 130 km |
| 2025 | Wipha | Category 1 | — | 101 km |
| 2023 | Saola | Category 4 | 109 mph | 77 km |
| 2023 | Koinu | Category 3 | 98 mph | 111 km |
| 2023 | Talim | Category 1 | 69 mph | 260 km |
| 2022 | Chaba | Category 1 | 81 mph | 281 km |
| 2021 | Cempaka | Category 1 | 81 mph | 175 km |
| 2018 | Mangkhut | Category 2 | 86 mph | 112 km |
| 2017 | Hato | Category 3 | 86 mph | 77 km |
| 2017 | Khanun | Category 2 | 86 mph | 237 km |
| 2016 | Nida | Category 1 | 63 mph | 80 km |
| 2016 | Haima | Category 1 | 69 mph | 193 km |
| 2015 | Linfa | Category 1 | — | 295 km |
| 2013 | Krosa | Category 3 | 81 mph | 284 km |
| 2013 | Usagi | Category 2 | 92 mph | 125 km |
| 2013 | Utor | Category 2 | 81 mph | 190 km |
| 2012 | Vicente | Category 4 | 92 mph | 100 km |
| 2012 | Kai-tak | Category 1 | 75 mph | 284 km |
| 2009 | Koppu | Category 1 | 75 mph | 134 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).