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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 72°F (22°C). Winters average 68°F in January while summers reach 73°F in July / relatively mild seasonal variation. The area gets 220 sunny days per year. Annual precipitation totals 64.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,916 feet.
Temperature
68°F Jan (20°C)
73°F Jul (23°C)
| Annual Average | 72.0°F |
| 33% above US avg | |
| January Average | 68°F (20°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 220 days/yr |
Geography
| Elevation | 1,916 ft (584 m) |
| Area | 160.6 sq mi (416.0 km²) |
| Population Density | 5/sq mi |
| Coordinates | 15.1333°N, 88.5500°W |
| Timezone | America/Tegucigalpa |
Precipitation & Snow
Air Quality
Earthquake History
107 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.7.
| Jul 11, 1999 | 16 km N of Potrerillos, Honduras | M6.7 | 76 km | 10 km |
| Nov 9, 1997 | 13 km NNE of San Sebastián, El Salvador | M6.5 | 146 km | 176 km |
| Jul 6, 1997 | 30 km NNW of Baja Mar, Honduras | M6.1 | 133 km | 33 km |
| Dec 18, 1997 | 11 km WSW of Sensuntepeque, El Salvador | M6.1 | 145 km | 182 km |
| May 18, 2005 | 1 km SSE of San José La Arada, Guatemala | M5.3 | 121 km | 42 km |
| Apr 23, 2012 | 28 km NNE of El Estor, Guatemala | M5.2 | 100 km | 10 km |
| Aug 25, 2021 | 11 km NNE of Pinalejo, Honduras | M5.2 | 45 km | 8 km |
| Mar 29, 1999 | 23 km NW of Yamaranguila, Honduras | M5.1 | 80 km | 33 km |
| Jan 11, 2010 | 9 km ESE of Morales, Guatemala | M5.1 | 41 km | 10 km |
| Sep 25, 2022 | 24 km NE of Puerto Barrios, Guatemala | M5.1 | 81 km | 10 km |
| Feb 1, 1991 | 20 km NNE of Baja Mar, Honduras | M4.8 | 132 km | 33 km |
| Apr 24, 2013 | 6 km WNW of San José, Honduras | M4.8 | 145 km | 10 km |
| Jul 11, 1999 | 11 km N of Puerto Barrios, Guatemala | M4.8 | 78 km | 10 km |
| Apr 24, 2013 | 6 km NNW of San Antonio, Honduras | M4.7 | 150 km | 10 km |
| Feb 8, 1999 | 8 km NNE of San José de Comayagua, Honduras | M4.7 | 69 km | 33 km |
| Aug 2, 2012 | 8 km WNW of Lucerna, Honduras | M4.6 | 79 km | 25 km |
| Jul 19, 1999 | 2 km NW of Potrerillos, Honduras | M4.6 | 63 km | 10 km |
| Feb 5, 1993 | 2 km WNW of Trinidad, Honduras | M4.6 | 32 km | 140 km |
| Jan 31, 2015 | 10 km NNE of Sinuapa, Honduras | M4.6 | 92 km | 10 km |
| Mar 23, 1999 | Honduras | M4.6 | 78 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
6 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2022 | Lisa | Category 1 | 92 mph | 254 km |
| 2020 | Nana | Category 1 | 75 mph | 187 km |
| 2016 | Earl | Category 1 | 86 mph | 254 km |
| 2010 | Richard | Category 2 | 98 mph | 231 km |
| 2001 | Iris | Category 4 | 144 mph | 120 km |
| 2000 | Keith | Category 3 | 115 mph | 286 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 | — | 113 km |
| 1976 | GUATEMALA | Earthquake | 0.1 m | 23,000 | 63 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Yojoa, Lake (64 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Yojoa, Lake | Volcanic field | 1,090 m (3,576 ft) | Unknown | 64 km |
| Chiquimula Volcanic Field | Pyroclastic cone(s) | 1,192 m (3,911 ft) | Unknown | 113 km |
| Ipala | Stratovolcano | 1,650 m (5,413 ft) | Unknown | 133 km |
| San Diego | Volcanic field | 781 m (2,562 ft) | Unknown | 139 km |
| Ixtepeque | Lava dome(s) | 1,292 m (4,239 ft) | Unknown | 145 km |
| Guazapa | Stratovolcano | 1,438 m (4,718 ft) | Unknown | 150 km |
| Suchitan | Stratovolcano(es) | 2,042 m (6,699 ft) | Unknown | 155 km |
| Apastepeque Field | Volcanic field | 700 m (2,297 ft) | Unknown | 159 km |
| Tahual | Stratovolcano | 1,716 m (5,630 ft) | Unknown | 165 km |
| Singuil, Cerro | Pyroclastic cone(s) | 926 m (3,038 ft) | Unknown | 167 km |
| Santiago, Cerro | Volcanic field | 1,192 m (3,911 ft) | Unknown | 168 km |
| Chingo | Stratovolcano | 1,775 m (5,823 ft) | Unknown | 170 km |
| Ilopango | Caldera | 450 m (1,476 ft) | 1880 | 171 km |
| San Vicente | Stratovolcano | 2,182 m (7,159 ft) | Unknown | 174 km |
| San Salvador | Stratovolcano | 1,893 m (6,211 ft) | 1917 | 175 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 68°F (20°C) | 2.1 in | |
| February | 69°F (21°C) | 1.7 in | |
| March | 73°F (23°C) | 1.1 in | Driest |
| April | 75°F (24°C) | 1.6 in | |
| May | 76°F (24°C) | 5.4 in | Warmest |
| June | 75°F (24°C) | 11.1 in | Wettest |
| July | 73°F (23°C) | 8.0 in | |
| August | 74°F (23°C) | 8.0 in | |
| September | 73°F (23°C) | 10.4 in | |
| October | 72°F (22°C) | 6.2 in | |
| November | 70°F (21°C) | 5.3 in | |
| December | 68°F (20°C) | 3.2 in | Coldest |
La Unión has a seasonal temperature swing of 8°F / from 68°F in December to 76°F in May. Total annual precipitation is 64.0 inches, with June being the wettest month (11.1") and March the driest (1.1").