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Weather & Climate in Siu Hei, Hong Kong
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Siu Hei has a warm climate with an average annual temperature of 75°F (24°C). Winters average 61°F in January while summers reach 85°F in July. The area gets 292 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 76.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 217 feet.
Temperature
61°F Jan (16°C)
85°F Jul (29°C)
| Annual Average | 74.8°F |
| 39% above US avg | |
| January Average | 61°F (16°C) |
| July Average | 85°F (29°C) |
| Sunny Days | 292 days/yr |
Geography
| Elevation | 217 ft (66 m) |
| Area | 62.8 sq mi (162.7 km²) |
| Population Density | 194/sq mi |
| Coordinates | 22.3736°N, 113.9671°W |
| Timezone | Asia/Hong_Kong |
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 | 145 km | 33 km |
| Jan 4, 2020 | 14 km SW of Tai O, Hong Kong | M3.8 | 31 km | 10 km |
| Mar 13, 2022 | 37 km W of Shanwei, China | M3.8 | 112 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
20 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Ragasa | Category 4 | — | 132 km |
| 2025 | Tapah | Category 1 | — | 155 km |
| 2025 | Wipha | Category 1 | — | 75 km |
| 2023 | Saola | Category 4 | 109 mph | 42 km |
| 2023 | Koinu | Category 3 | 98 mph | 75 km |
| 2023 | Talim | Category 1 | 69 mph | 258 km |
| 2021 | Cempaka | Category 1 | 81 mph | 193 km |
| 2018 | Mangkhut | Category 2 | 86 mph | 108 km |
| 2017 | Hato | Category 3 | 86 mph | 59 km |
| 2017 | Khanun | Category 2 | 86 mph | 216 km |
| 2016 | Haima | Category 1 | 81 mph | 138 km |
| 2016 | Nida | Category 1 | 63 mph | 35 km |
| 2015 | Linfa | Category 1 | — | 244 km |
| 2013 | Usagi | Category 3 | 98 mph | 95 km |
| 2013 | Krosa | Category 3 | 86 mph | 235 km |
| 2013 | Utor | Category 2 | 81 mph | 220 km |
| 2012 | Vicente | Category 4 | 92 mph | 95 km |
| 2012 | Kai-tak | Category 1 | 75 mph | 270 km |
| 2009 | Koppu | Category 1 | 75 mph | 125 km |
| 2009 | Molave | Category 1 | 75 mph | 209 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 61°F (16°C) | 1.0 in | Driest |
| February | 60°F (16°C) | 1.7 in | Coldest |
| March | 65°F (18°C) | 2.7 in | |
| April | 72°F (22°C) | 6.5 in | |
| May | 78°F (26°C) | 10.5 in | |
| June | 82°F (28°C) | 12.8 in | |
| July | 85°F (29°C) | 12.7 in | Warmest |
| August | 83°F (28°C) | 13.4 in | Wettest |
| September | 81°F (27°C) | 8.1 in | |
| October | 76°F (25°C) | 4.1 in | |
| November | 69°F (20°C) | 1.4 in | |
| December | 62°F (17°C) | 1.1 in |
Siu Hei has a seasonal temperature swing of 25°F / from 60°F in February to 85°F in July. Total annual precipitation is 76.0 inches, with August being the wettest month (13.4") and January the driest (1.0").