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Weather & Climate in Sui’an, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sui’an enjoys a temperate climate with an average annual temperature of 70°F (21°C). Winters average 51°F in January while summers reach 83°F in July. The area gets 272 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 76.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 43 feet.
Temperature
51°F Jan (11°C)
83°F Jul (28°C)
| Annual Average | 70.4°F |
| 30% above US avg | |
| January Average | 51°F (11°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 272 days/yr |
Geography
| Elevation | 43 ft (13 m) |
| Area | 2.4 sq mi (6.3 km²) |
| Population Density | 0/sq mi |
| Coordinates | 24.0870°N, 117.6091°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
6 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Feb 25, 1995 | 27 km S of Kerencun, China | M4.9 | 113 km | 10 km |
| Aug 17, 2019 | 102 km SSE of Zhenhaicun, China | M4.3 | 121 km | 10 km |
| Aug 1, 2019 | 86 km W of Magong, Taiwan | M4.2 | 126 km | 10 km |
| May 16, 1991 | 24 km ESE of Haimen, China | M3.9 | 132 km | 10 km |
| Mar 2, 1992 | 10 km SSE of Zhenhaicun, China | M3.9 | 52 km | 28 km |
| Jun 3, 1991 | 64 km SE of Jincheng, Taiwan | M3.9 | 111 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
65 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Danas | Category 2 | — | 232 km |
| 2025 | Podul | Category 1 | — | 143 km |
| 2024 | Krathon | Category 4 | 109 mph | 300 km |
| 2024 | Kong-rey | Category 1 | 63 mph | 247 km |
| 2024 | Gaemi | Category 1 | 69 mph | 267 km |
| 2023 | Saola | Category 4 | 115 mph | 283 km |
| 2023 | Koinu | Category 3 | 92 mph | 246 km |
| 2023 | Doksuri | Category 3 | 92 mph | 122 km |
| 2023 | Haikui | Category 2 | 63 mph | 216 km |
| 2020 | Mekkhala | Category 1 | 58 mph | 16 km |
| 2018 | Maria | Category 2 | 98 mph | 286 km |
| 2016 | Meranti | Category 5 | 104 mph | 84 km |
| 2016 | Haima | Category 1 | 69 mph | 295 km |
| 2016 | Megi | Category 1 | 75 mph | 234 km |
| 2016 | Nepartak | Category 1 | 75 mph | 263 km |
| 2015 | Dujuan | Category 2 | 75 mph | 157 km |
| 2015 | Soudelor | Category 2 | 81 mph | 198 km |
| 2015 | Linfa | Category 1 | 58 mph | 168 km |
| 2014 | Matmo | Category 1 | 58 mph | 231 km |
| 2013 | Usagi | Category 3 | 98 mph | 205 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
3 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1918 | GUANGDONG PROVINCE | Eruption + Earthquake | — | 2,000 | 77 km |
| 1917 | SOUTH CHINA SEA | Earthquake | — | — | 64 km |
| 1640 | SOUTH CHINA SEA | Earthquake | — | — | 136 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (11°C) | 1.3 in | Coldest |
| February | 56°F (14°C) | 2.7 in | |
| March | 61°F (16°C) | 4.1 in | |
| April | 68°F (20°C) | 6.1 in | |
| May | 75°F (24°C) | 7.2 in | |
| June | 80°F (27°C) | 8.7 in | Wettest |
| July | 83°F (28°C) | 6.3 in | Warmest |
| August | 83°F (28°C) | 7.4 in | |
| September | 80°F (27°C) | 4.6 in | |
| October | 74°F (24°C) | 1.8 in | |
| November | 67°F (19°C) | 1.3 in | |
| December | 59°F (15°C) | 1.1 in | Driest |
Sui’an has a seasonal temperature swing of 32°F / from 51°F in January to 83°F in July. Total annual precipitation is 52.6 inches, with June being the wettest month (8.7") and December the driest (1.1").