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Weather & Climate in Quốc Oai, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Quốc Oai 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 233 sunny days per year, above the national average. Annual precipitation totals 66.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 39 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 | 233 days/yr |
Geography
| Elevation | 39 ft (12 m) |
| Area | 17.2 sq mi (44.4 km²) |
| Population Density | 0/sq mi |
| Coordinates | 20.9902°N, 105.6409°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Jul 27, 2020 | ~120km W of Hanoi, Vietnam | M4.9 | 107 km | 10 km |
| Mar 25, 2024 | 27 km S of Xuân Mai, Vietnam | M4.2 | 39 km | 10 km |
| Oct 23, 1993 | 20 km SSW of Yên Bái, Vietnam | M4.1 | 100 km | 33 km |
| Oct 11, 1991 | 11 km N of Tuyên Quang, Vietnam | M4.1 | 113 km | 10 km |
| Sep 19, 2010 | 71 km SSW of Hòa Bình, Vietnam | M4.0 | 105 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
23 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kajiki | Category 2 | — | 266 km |
| 2024 | Yagi | Category 3 | 104 mph | 6 km |
| 2016 | Mirinae | Category 1 | 52 mph | 105 km |
| 2014 | Rammasun | Category 3 | 58 mph | 206 km |
| 2014 | Kalmaegi | Category 1 | 75 mph | 119 km |
| 2013 | Haiyan | Category 1 | 75 mph | 172 km |
| 2012 | Son-tinh | Category 3 | 86 mph | 105 km |
| 2003 | Krovanh | Category 2 | 63 mph | 142 km |
| 1997 | Zita | Category 1 | 52 mph | 53 km |
| 1996 | Frankie | Category 2 | 58 mph | 81 km |
| 1996 | Sally | Category 2 | 63 mph | 217 km |
| 1996 | Niki | Category 1 | 75 mph | 110 km |
| 1996 | Willie | Category 1 | 52 mph | 256 km |
| 1995 | Lois | Category 1 | 58 mph | 192 km |
| 1993 | Lewis | Category 1 | 63 mph | 252 km |
| 1989 | Brian | Category 1 | 63 mph | 256 km |
| 1987 | Cary | Category 1 | 69 mph | 298 km |
| 1986 | Wayne | Category 1 | 75 mph | 292 km |
| 1985 | Dot | Category 1 | 69 mph | 292 km |
| 1983 | Vera | Category 1 | 75 mph | 297 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 61°F (16°C) | 0.6 in | Coldest, Driest |
| February | 64°F (18°C) | 1.1 in | |
| March | 68°F (20°C) | 1.4 in | |
| April | 75°F (24°C) | 3.6 in | |
| May | 81°F (27°C) | 7.7 in | |
| June | 84°F (29°C) | 10.0 in | |
| July | 85°F (29°C) | 11.9 in | Warmest |
| August | 83°F (29°C) | 12.1 in | Wettest |
| September | 81°F (27°C) | 10.2 in | |
| October | 77°F (25°C) | 5.3 in | |
| November | 71°F (22°C) | 1.9 in | |
| December | 65°F (18°C) | 0.7 in |
Quốc Oai has a seasonal temperature swing of 23°F / from 61°F in January to 85°F in July. Total annual precipitation is 66.5 inches, with August being the wettest month (12.1") and January the driest (0.6").