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Weather & Climate in La Unión, Honduras
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
La Unión has a warm climate with an average annual temperature of 80°F (27°C). Winters average 76°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 181 sunny days per year. Annual precipitation totals 85.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 10 feet.
Temperature
76°F Jan (24°C)
82°F Jul (28°C)
| Annual Average | 79.8°F |
| 48% above US avg | |
| January Average | 76°F (24°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 181 days/yr |
Geography
| Elevation | 10 ft (3 m) |
| Area | 228.2 sq mi (591.1 km²) |
| Population Density | 10/sq mi |
| Coordinates | 15.7167°N, 87.0000°W |
| Timezone | America/Tegucigalpa |
Precipitation & Snow
Air Quality
Earthquake History
118 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.3.
| May 28, 2009 | 46 km NW of Guanaja, Honduras | M7.3 | 140 km | 19 km |
| Jul 11, 1999 | 16 km N of Potrerillos, Honduras | M6.7 | 143 km | 10 km |
| Jul 6, 1997 | 30 km NNW of Baja Mar, Honduras | M6.1 | 110 km | 33 km |
| Apr 15, 1997 | 32 km WNW of Sandy Bay, Honduras | M5.5 | 84 km | 33 km |
| Apr 10, 2013 | 8 km S of San Antonio, Honduras | M5.4 | 28 km | 4 km |
| Aug 2, 2022 | 38 km N of Tela, Honduras | M5.4 | 70 km | 10 km |
| Jun 8, 2009 | 8 km ENE of El Porvenir, Honduras | M5.4 | 17 km | 10 km |
| Jul 27, 1990 | 26 km NNE of Río Esteban, Honduras | M5.4 | 91 km | 14 km |
| Feb 16, 1999 | 3 km NNW of La Masica, Honduras | M5.2 | 16 km | 10 km |
| Aug 25, 2021 | 11 km NNE of Pinalejo, Honduras | M5.2 | 146 km | 8 km |
| Jun 2, 2009 | 4 km SE of El Juncal, Honduras | M5.1 | 72 km | 10 km |
| Jun 15, 2009 | 50 km W of Sandy Bay, Honduras | M5.1 | 67 km | 10 km |
| Jun 30, 2009 | 4 km SW of Armenia, Honduras | M5.0 | 72 km | 35 km |
| Jun 6, 2009 | 38 km NE of Baja Mar, Honduras | M5.0 | 86 km | 10 km |
| Feb 11, 2010 | 12 km S of Jocón, Honduras | M4.9 | 61 km | 10 km |
| Dec 31, 2009 | 26 km NNE of Tela, Honduras | M4.8 | 54 km | 10 km |
| Apr 24, 2013 | 6 km WNW of San José, Honduras | M4.8 | 48 km | 10 km |
| Feb 1, 1991 | 20 km NNE of Baja Mar, Honduras | M4.8 | 91 km | 33 km |
| Feb 11, 2010 | 21 km WSW of Mangulile, Honduras | M4.8 | 82 km | 10 km |
| May 28, 2009 | 59 km N of Tela, Honduras | M4.8 | 79 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
11 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2022 | Lisa | Category 1 | 92 mph | 157 km |
| 2020 | Iota | Category 2 | 86 mph | 296 km |
| 2020 | Nana | Category 1 | 75 mph | 142 km |
| 2016 | Earl | Category 1 | 86 mph | 176 km |
| 2011 | Rina | Category 3 | 115 mph | 276 km |
| 2010 | Paula | Category 2 | 86 mph | 277 km |
| 2010 | Richard | Category 2 | 98 mph | 133 km |
| 2007 | Felix | Category 2 | 98 mph | 269 km |
| 2001 | Iris | Category 4 | 144 mph | 110 km |
| 2000 | Keith | Category 4 | 138 mph | 226 km |
| 1998 | Mitch | Category 5 | 173 mph | 132 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 5.0 m (16 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1856 | BAY OF HONDURAS | Eruption + Earthquake | 5.0 m | — | 112 km |
| 2009 | OFF COAST OF HONDURAS | Earthquake | 4.0 m | 7 | 138 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Utila Island (47 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Utila Island | Pyroclastic cone(s) | 74 m (243 ft) | Unknown | 47 km |
| Yojoa, Lake | Volcanic field | 1,090 m (3,576 ft) | Unknown | 133 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 76°F (24°C) | 8.0 in | Coldest |
| February | 77°F (25°C) | 7.2 in | |
| March | 79°F (26°C) | 4.7 in | |
| April | 82°F (28°C) | 2.8 in | Driest |
| May | 83°F (28°C) | 3.2 in | Warmest |
| June | 83°F (28°C) | 5.3 in | |
| July | 82°F (28°C) | 4.8 in | |
| August | 82°F (28°C) | 6.1 in | |
| September | 82°F (28°C) | 7.2 in | |
| October | 80°F (27°C) | 12.2 in | Wettest |
| November | 78°F (25°C) | 12.2 in | |
| December | 76°F (24°C) | 11.8 in |
La Unión has a seasonal temperature swing of 8°F / from 76°F in January to 83°F in May. Total annual precipitation is 85.6 inches, with October being the wettest month (12.2") and April the driest (2.8").