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Weather & Climate in Long Mỹ, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Long Mỹ has a warm climate with an average annual temperature of 82°F (28°C). Winters average 79°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 209 sunny days per year. Annual precipitation totals 70.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 7 feet.
Temperature
79°F Jan (26°C)
82°F Jul (28°C)
| Annual Average | 81.6°F |
| 51% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 209 days/yr |
Geography
| Elevation | 7 ft (2 m) |
| Area | 313.9 sq mi (813.1 km²) |
| Population Density | 197/sq mi |
| Coordinates | 9.6814°N, 105.5723°W |
| Timezone | Asia/Ho_Chi_Minh |
Precipitation & Snow
Air Quality
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2018 | Usagi | Category 1 | 63 mph | 245 km |
| 1997 | Linda | Category 1 | 58 mph | 210 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 0.4 in | Coldest |
| February | 80°F (27°C) | 0.1 in | Driest |
| March | 82°F (28°C) | 0.6 in | |
| April | 84°F (29°C) | 2.4 in | Warmest |
| May | 84°F (29°C) | 8.0 in | |
| June | 83°F (28°C) | 8.9 in | |
| July | 82°F (28°C) | 10.3 in | |
| August | 82°F (28°C) | 9.8 in | |
| September | 82°F (28°C) | 11.7 in | Wettest |
| October | 82°F (28°C) | 10.4 in | |
| November | 81°F (27°C) | 5.9 in | |
| December | 79°F (26°C) | 1.5 in |
Long Mỹ has a seasonal temperature swing of 6°F / from 79°F in January to 84°F in April. Total annual precipitation is 70.0 inches, with September being the wettest month (11.7") and February the driest (0.1").