Huihuan has a warm climate with an average annual temperature of 73°F (23°C). Winters average 58°F in January while summers reach 84°F in July. The area gets 263 sunny days per year. Annual precipitation totals 81.0 inches. The area receives 0.0 inches of snow annually.
Temperature
58°F Jan (15°C)
84°F Jul (29°C)
| Annual Average | 73.2°F |
| 36% above US avg |
| January Average | 58°F (15°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 263 days/yr |
Geography
| Elevation | 95 ft (29 m) |
| Area | 4,380.8 sq mi (11,346.2 km²) |
| Population Density | 0/sq mi |
| Coordinates | 23.0328°N, 114.3669°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Annual Rainfall
81.0"
113% above US avg
Earthquake History
11 earthquakes (M2.5+) within 150 km since 1990.
Strongest: M4.6. Most recent: M4.2 on Mar 7, 2023.
| Aug 4, 1992 |
55 km NW of Hepo, China |
M4.6 |
141 km |
| Feb 22, 2013 |
27 km NW of Heyuan, China |
M4.5 |
95 km |
| Feb 15, 2012 |
37 km NW of Heyuan, China |
M4.4 |
107 km |
| Aug 19, 1999 |
30 km NW of Heyuan, China |
M4.4 |
98 km |
| Aug 31, 2012 |
21 km WSW of Heyuan, China |
M4.3 |
74 km |
| Sep 21, 1991 |
23 km WNW of Heyuan, China |
M4.2 |
92 km |
| Mar 7, 2023 |
24 km NW of Heyuan, China |
M4.2 |
94 km |
| Feb 11, 2023 |
10 km WNW of Heyuan, China |
M4.2 |
84 km |
| Mar 24, 1999 |
33 km ENE of Heyuan, China |
M4.1 |
110 km |
| Jan 4, 2020 |
14 km SW of Tai O, Hong Kong |
M3.8 |
114 km |
| Mar 13, 2022 |
37 km W of Shanwei, China |
M3.8 |
71 km |
Source: USGS (M2.5+, 1990–2025)
Hurricane History
51 hurricanes (Cat 1+) within 500 km since 1980.
Strongest: Category 4. Most recent: Ragasa (2025).
| Year |
Name |
Category |
Closest |
| 2025 |
Ragasa |
Category 4 |
212 km |
| 2025 |
Tapah |
Category 1 |
228 km |
| 2025 |
Wipha |
Category 1 |
156 km |
| 2023 |
Saola |
Category 4 |
115 km |
| 2023 |
Koinu |
Category 3 |
151 km |
| 2021 |
Cempaka |
Category 1 |
272 km |
| 2018 |
Mangkhut |
Category 1 |
191 km |
| 2017 |
Hato |
Category 3 |
143 km |
| 2017 |
Khanun |
Category 2 |
299 km |
| 2016 |
Haima |
Category 1 |
113 km |
| 2016 |
Nida |
Category 1 |
51 km |
| 2015 |
Linfa |
Category 1 |
200 km |
| 2013 |
Usagi |
Category 3 |
24 km |
| 2013 |
Utor |
Category 2 |
291 km |
| 2012 |
Vicente |
Category 4 |
179 km |
| 2009 |
Koppu |
Category 1 |
209 km |
| 2009 |
Molave |
Category 1 |
186 km |
| 2008 |
Hagupit |
Category 4 |
272 km |
| 2008 |
Nuri |
Category 1 |
276 km |
| 2006 |
Chanchu |
Category 3 |
235 km |
Source: NOAA IBTrACS (Cat 1+, 1980–2026)
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