Tiangan has a warm climate with an average annual temperature of 74°F (23°C). Winters average 61°F in January while summers reach 84°F in July. Annual precipitation totals 69.2 inches. The area receives 0.0 inches of snow annually.
Temperature
61°F Jan (16°C)
84°F Jul (29°C)
| Annual Average | 74.3°F |
| 38% above US avg |
| January Average | 61°F (16°C) |
| July Average | 84°F (29°C) |
Geography
| Elevation | 16 ft (5 m) |
| Area | 293.6 sq mi (760.4 km²) |
| Population Density | 0/sq mi |
| Coordinates | 22.7263°N, 115.5082°E |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Annual Rainfall
69.2"
82% above US avg
Earthquake History
7 earthquakes (M2.5+) within 150 km since 1990.
Strongest: M4.6. Most recent: M4.1 on Jan 10, 2025.
| Aug 4, 1992 |
55 km NW of Hepo, China |
M4.6 |
119 km |
| Nov 12, 1995 |
49 km N of Hepo, China |
M4.3 |
131 km |
| Feb 11, 2023 |
10 km WNW of Heyuan, China |
M4.2 |
149 km |
| Mar 24, 1999 |
33 km ENE of Heyuan, China |
M4.1 |
134 km |
| Jan 10, 2025 |
131 km S of Shanwei, China |
M4.1 |
124 km |
| May 16, 1991 |
24 km ESE of Haimen, China |
M3.9 |
144 km |
| Mar 13, 2022 |
37 km W of Shanwei, China |
M3.8 |
54 km |
Source: USGS (M2.5+, 1990-2025)
Hurricane History
57 hurricanes (Cat 1+) within 500 km since 1980.
Strongest: Category 4. Most recent: Ragasa (2025).
| Year |
Name |
Category |
Closest |
| 2025 |
Ragasa |
Category 4 |
192 km |
| 2025 |
Wipha |
Category 1 |
156 km |
| 2023 |
Saola |
Category 4 |
81 km |
| 2023 |
Koinu |
Category 3 |
160 km |
| 2020 |
Mekkhala |
Category 1 |
269 km |
| 2018 |
Mangkhut |
Category 2 |
214 km |
| 2017 |
Hato |
Category 3 |
171 km |
| 2016 |
Haima |
Category 1 |
33 km |
| 2016 |
Nida |
Category 1 |
70 km |
| 2015 |
Linfa |
Category 1 |
82 km |
| 2013 |
Usagi |
Category 3 |
14 km |
| 2013 |
Krosa |
Category 2 |
283 km |
| 2012 |
Vicente |
Category 4 |
230 km |
| 2012 |
Tembin |
Category 2 |
188 km |
| 2010 |
Megi |
Category 3 |
266 km |
| 2010 |
Fanapi |
Category 1 |
216 km |
| 2009 |
Koppu |
Category 1 |
229 km |
| 2009 |
Molave |
Category 1 |
69 km |
| 2009 |
Linfa |
Category 1 |
279 km |
| 2008 |
Hagupit |
Category 4 |
258 km |
Source: NOAA IBTrACS (Cat 1+, 1980-2026)