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Weather & Climate in Hekou, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hekou enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 29°F in January while summers reach 81°F in July. The area gets 304 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 20.0 inches (drier than the 38-inch national average). The area receives 6.0 inches of snow annually. The city sits at an elevation of 16 feet.
Temperature
29°F Jan (-2°C)
81°F Jul (27°C)
| Annual Average | 56.2°F |
| 4% above US avg | |
| January Average | 29°F (-2°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 304 days/yr |
Geography
| Elevation | 16 ft (5 m) |
| Area | 692.5 sq mi (1,793.7 km²) |
| Population Density | 0/sq mi |
| Coordinates | 37.8846°N, 118.5266°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
9 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Jan 23, 2013 | 35 km NNE of Shengli, China | M4.6 | 21 km | 10 km |
| Jul 21, 1992 | 8 km ESE of Caijiapu, China | M4.5 | 149 km | 33 km |
| Jul 27, 2025 | 118 km NW of Longgang, China | M4.5 | 91 km | 10 km |
| Sep 19, 2001 | 82 km WNW of Longgang, China | M4.4 | 90 km | 33 km |
| May 1, 2022 | 11 km SE of Suozhen, China | M4.3 | 115 km | 10 km |
| Mar 24, 2017 | 131 km S of Changli, China | M4.3 | 98 km | 10 km |
| Aug 15, 1998 | 123 km NNE of Shengli, China | M3.9 | 83 km | 33 km |
| Sep 1, 1991 | 123 km NNW of Longgang, China | M3.6 | 146 km | 10 km |
| Feb 28, 1997 | 70 km SSW of Changli, China | M3.5 | 139 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 0.1 m (0 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1969 | BOHAI SEA | Earthquake | 0.1 m | 10 | 84 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 0.3 in | Coldest, Driest |
| February | 33°F (0°C) | 0.4 in | |
| March | 44°F (7°C) | 0.5 in | |
| April | 58°F (14°C) | 1.3 in | |
| May | 68°F (20°C) | 1.4 in | |
| June | 77°F (25°C) | 2.7 in | |
| July | 81°F (27°C) | 8.1 in | Warmest, Wettest |
| August | 79°F (26°C) | 5.6 in | |
| September | 71°F (21°C) | 2.4 in | |
| October | 59°F (15°C) | 1.2 in | |
| November | 45°F (7°C) | 0.8 in | |
| December | 33°F (0°C) | 0.3 in |
Hekou has a seasonal temperature swing of 51°F / from 29°F in January to 81°F in July. Total annual precipitation is 25.0 inches, with July being the wettest month (8.1") and January the driest (0.3").