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Weather & Climate in Hạ Hiệu, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hạ Hiệu enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 55°F in January while summers reach 79°F in July. The area gets 218 sunny days per year. Annual precipitation totals 66.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 650 feet.
Temperature
55°F Jan (13°C)
79°F Jul (26°C)
| Annual Average | 69.2°F |
| 28% above US avg | |
| January Average | 55°F (13°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 218 days/yr |
Geography
| Elevation | 650 ft (198 m) |
| Area | 85.7 sq mi (221.9 km²) |
| Population Density | 32/sq mi |
| Coordinates | 22.4333°N, 105.8500°W |
| Timezone | Asia/Ho_Chi_Minh |
Precipitation & Snow
Air Quality
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| Aug 15, 2017 | 60 km N of Cao B?ng, Vietnam | M4.5 | 94 km | 10 km |
| Aug 4, 2021 | 58 km SSE of Baise City, China | M4.5 | 145 km | 14 km |
| Jul 25, 1995 | 72 km NW of Cao B?ng, Vietnam | M4.2 | 85 km | 10 km |
| Oct 3, 2017 | 48 km N of Cao B?ng, Vietnam | M4.2 | 86 km | 12 km |
| Oct 23, 1993 | 20 km SSW of Yên Bái, Vietnam | M4.1 | 142 km | 33 km |
| Oct 11, 1991 | 11 km N of Tuyên Quang, Vietnam | M4.1 | 87 km | 10 km |
| Apr 22, 1997 | 33 km NNE of Hà Giang, Vietnam | M3.6 | 111 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
14 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Matmo | Category 1 | — | 279 km |
| 2024 | Yagi | Category 3 | 104 mph | 160 km |
| 2016 | Mirinae | Category 1 | 52 mph | 251 km |
| 2014 | Rammasun | Category 3 | 58 mph | 98 km |
| 2014 | Kalmaegi | Category 1 | 75 mph | 106 km |
| 2013 | Haiyan | Category 1 | 69 mph | 219 km |
| 2012 | Son-tinh | Category 2 | 69 mph | 187 km |
| 2008 | Hagupit | Category 1 | — | 299 km |
| 2003 | Krovanh | Category 2 | 63 mph | 150 km |
| 1997 | Zita | Category 1 | 52 mph | 140 km |
| 1996 | Frankie | Category 2 | 58 mph | 237 km |
| 1996 | Sally | Category 2 | 63 mph | 180 km |
| 1996 | Niki | Category 1 | 63 mph | 272 km |
| 1980 | Ruth | Category 1 | 63 mph | 295 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 55°F (13°C) | 0.6 in | Coldest, Driest |
| February | 58°F (15°C) | 1.7 in | |
| March | 64°F (18°C) | 1.4 in | |
| April | 71°F (22°C) | 3.3 in | |
| May | 76°F (25°C) | 8.4 in | |
| June | 79°F (26°C) | 11.9 in | |
| July | 79°F (26°C) | 13.3 in | Warmest, Wettest |
| August | 78°F (26°C) | 13.2 in | |
| September | 76°F (25°C) | 7.0 in | |
| October | 71°F (22°C) | 3.1 in | |
| November | 64°F (18°C) | 1.3 in | |
| December | 58°F (15°C) | 0.9 in |
Hạ Hiệu has a seasonal temperature swing of 24°F / from 55°F in January to 79°F in July. Total annual precipitation is 66.1 inches, with July being the wettest month (13.3") and January the driest (0.6").