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Weather & Climate in Heliao, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Heliao has a warm climate with an average annual temperature of 73°F (23°C). Winters average 58°F in January while summers reach 83°F in July. The area gets 247 sunny days per year, above the national average. Annual precipitation totals 92.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 276 feet.
Temperature
58°F Jan (14°C)
83°F Jul (28°C)
| Annual Average | 73.1°F |
| 35% above US avg | |
| January Average | 58°F (14°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 247 days/yr |
Geography
| Elevation | 276 ft (84 m) |
| Area | 1,106.9 sq mi (2,866.8 km²) |
| Population Density | 0/sq mi |
| Coordinates | 21.8569°N, 110.1904°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.4.
| Sep 16, 2004 | 44 km WSW of Yangjiang, China | M4.4 | 141 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
49 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Ragasa | Category 3 | — | 94 km |
| 2025 | Matmo | Category 2 | — | 86 km |
| 2025 | Tapah | Category 1 | — | 249 km |
| 2025 | Wutip | Category 1 | — | 207 km |
| 2024 | Yagi | Category 5 | 121 mph | 194 km |
| 2023 | Saola | Category 2 | 69 mph | 208 km |
| 2023 | Talim | Category 1 | 69 mph | 74 km |
| 2022 | Chaba | Category 1 | 81 mph | 93 km |
| 2021 | Cempaka | Category 1 | 81 mph | 166 km |
| 2018 | Mangkhut | Category 1 | 75 mph | 65 km |
| 2017 | Hato | Category 2 | 86 mph | 190 km |
| 2017 | Khanun | Category 1 | 58 mph | 157 km |
| 2015 | Mujigae | Category 4 | 98 mph | 44 km |
| 2014 | Rammasun | Category 5 | 104 mph | 126 km |
| 2014 | Kalmaegi | Category 1 | 86 mph | 156 km |
| 2013 | Utor | Category 2 | 81 mph | 92 km |
| 2013 | Rumbia | Category 1 | 58 mph | 217 km |
| 2012 | Vicente | Category 3 | 69 mph | 156 km |
| 2012 | Kai-tak | Category 1 | 75 mph | 89 km |
| 2011 | Nesat | Category 1 | 75 mph | 248 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).