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Weather & Climate in Shiwan, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Shiwan has a warm climate with an average annual temperature of 72°F (22°C). Winters average 57°F in January while summers reach 84°F in July. The area gets 217 sunny days per year. Annual precipitation totals 65.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 16 feet.
Temperature
57°F Jan (14°C)
84°F Jul (29°C)
| Annual Average | 72.3°F |
| 34% above US avg | |
| January Average | 57°F (14°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 217 days/yr |
Geography
| Elevation | 16 ft (5 m) |
| Area | 296.0 sq mi (766.6 km²) |
| Population Density | 136/sq mi |
| Coordinates | 21.7500°N, 109.2000°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.3.
| Dec 31, 1994 | 77 km NNW of Lincheng, China | M5.3 | 137 km | 33 km |
| Jun 23, 2023 | southeastern China | M4.6 | 99 km | 14 km |
| Apr 15, 1995 | 68 km NNW of Lincheng, China | M4.3 | 143 km | 33 km |
| May 7, 1995 | 63 km NNW of Lincheng, China | M4.2 | 150 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
43 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Matmo | Category 2 | — | 21 km |
| 2025 | Ragasa | Category 2 | — | 196 km |
| 2025 | Wutip | Category 1 | — | 162 km |
| 2024 | Yagi | Category 4 | 121 mph | 163 km |
| 2023 | Talim | Category 1 | 69 mph | 30 km |
| 2022 | Chaba | Category 1 | 81 mph | 188 km |
| 2021 | Cempaka | Category 1 | 69 mph | 269 km |
| 2018 | Mangkhut | Category 1 | 75 mph | 157 km |
| 2017 | Khanun | Category 1 | 58 mph | 233 km |
| 2017 | Hato | Category 1 | — | 290 km |
| 2015 | Mujigae | Category 4 | 98 mph | 45 km |
| 2014 | Rammasun | Category 5 | 104 mph | 57 km |
| 2014 | Kalmaegi | Category 1 | 86 mph | 108 km |
| 2013 | Utor | Category 2 | 75 mph | 192 km |
| 2013 | Haiyan | Category 1 | 75 mph | 214 km |
| 2013 | Rumbia | Category 1 | 58 mph | 269 km |
| 2012 | Son-tinh | Category 2 | 81 mph | 262 km |
| 2012 | Kai-tak | Category 1 | 75 mph | 102 km |
| 2012 | Vicente | Category 1 | — | 250 km |
| 2011 | Nesat | Category 1 | 75 mph | 293 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 57°F (14°C) | 1.2 in | Coldest |
| February | 59°F (15°C) | 2.1 in | |
| March | 65°F (18°C) | 2.4 in | |
| April | 73°F (23°C) | 4.7 in | |
| May | 80°F (26°C) | 9.0 in | |
| June | 83°F (28°C) | 10.5 in | |
| July | 84°F (29°C) | 10.5 in | Warmest |
| August | 83°F (28°C) | 12.1 in | Wettest |
| September | 81°F (27°C) | 6.7 in | |
| October | 76°F (24°C) | 3.5 in | |
| November | 68°F (20°C) | 1.8 in | |
| December | 61°F (16°C) | 1.1 in | Driest |
Shiwan has a seasonal temperature swing of 27°F / from 57°F in January to 84°F in July. Total annual precipitation is 65.5 inches, with August being the wettest month (12.1") and December the driest (1.1").