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La Unión, Guatemala

Full City Profile

3,682 Population 13/sq mi density
2,959 ft Elevation 902 meters
72°F Avg Temperature 22°C
La Unión has a warm climate with an average annual temperature of 72°F (22°C). Winters average 69°F in January while summers reach 74°F in July. The area gets 228 sunny days per year. Annual precipitation totals 59.6 inches. The area receives 0.0 inches of snow annually.

Temperature

69°F Jan (20°C) 74°F Jul (23°C)
Annual Average72.4°F
34% above US avg
January Average69°F (20°C)
July Average74°F (23°C)
Sunny Days228 days/yr

Geography

Elevation2,959 ft (902 m)
Area286.9 sq mi (743.0 km²)
Population Density13/sq mi
Coordinates14.9666°N, 89.2902°W
TimezoneAmerica/Guatemala

Precipitation & Snow

Annual Rainfall 59.6"
57% above US avg
Snowfall 0.0"
Wettest Month (Jun) 10.87"
Driest Month (Mar) 0.75"

Air Quality

Earthquake History

313 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.7. Most recent: M4.2 on Aug 22, 2025.

Jul 11, 1999 16 km N of Potrerillos, Honduras M6.7 137 km
Feb 13, 2001 5 km S of Cojutepeque, El Salvador M6.6 149 km
Nov 9, 1997 13 km NNE of San Sebastián, El Salvador M6.5 135 km
Mar 25, 2013 3 km NW of Fraijanes, Guatemala M6.2 137 km
Jul 21, 2024 6 km E of Jalapa, Guatemala M6.2 78 km
Dec 18, 1997 11 km WSW of Sensuntepeque, El Salvador M6.1 139 km
Jul 29, 2025 6 km SE of Comapa, Guatemala M5.7 118 km
Jun 27, 2012 5 km E of San Francisco Menéndez, El Salvador M5.7 146 km
Sep 19, 2011 3 km E of Santa María Ixhuatán, Guatemala M5.6 134 km
Jul 29, 2025 4 km WNW of Jerez, Guatemala M5.6 111 km
May 15, 1997 3 km WNW of Santa Catarina Mita, Guatemala M5.5 77 km
Dec 19, 1995 3 km WNW of Tucurú, Guatemala M5.4 100 km
May 18, 2005 1 km SSE of San José La Arada, Guatemala M5.3 43 km
Jul 29, 2025 9 km SE of Comapa, Guatemala M5.2 118 km
Sep 19, 2011 3 km WNW of Oratorio, Guatemala M5.2 128 km
Apr 23, 2012 28 km NNE of El Estor, Guatemala M5.2 89 km
Apr 4, 2009 4 km WSW of Santa Cruz Naranjo, Guatemala M5.2 137 km
Aug 25, 2021 11 km NNE of Pinalejo, Honduras M5.2 117 km
Jan 15, 2023 7 km NW of Atiquizaya, El Salvador M5.2 118 km
Sep 25, 2022 24 km NE of Puerto Barrios, Guatemala M5.1 137 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

6 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Lisa (2022).

Year Name Category Closest
2022 Lisa Category 1 291 km
2020 Nana Category 1 230 km
2016 Earl Category 1 274 km
2010 Richard Category 2 267 km
2005 Adrian Category 1 295 km
2001 Iris Category 4 151 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 0.1 m (0 ft).

Year Location Cause Max Wave Deaths Distance
1976 GUATEMALA Earthquake 0.1 m 23,000 45 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Chiquimula Volcanic Field (32 km).

Name Type Elevation Last Eruption Distance
Chiquimula Volcanic Field Pyroclastic cone(s) 1,192 m (3,911 ft) Unknown 32 km
Ipala Stratovolcano 1,650 m (5,413 ft) Unknown 59 km
Ixtepeque Lava dome(s) 1,292 m (4,239 ft) Unknown 74 km
San Diego Volcanic field 781 m (2,562 ft) Unknown 80 km
Suchitan Stratovolcano(es) 2,042 m (6,699 ft) Unknown 82 km
Tahual Stratovolcano 1,716 m (5,630 ft) Unknown 89 km
Santiago, Cerro Volcanic field 1,192 m (3,911 ft) Unknown 94 km
Flores Volcanic field 1,600 m (5,249 ft) Unknown 105 km
Chingo Stratovolcano 1,775 m (5,823 ft) Unknown 105 km
Singuil, Cerro Pyroclastic cone(s) 926 m (3,038 ft) Unknown 108 km
Guazapa Stratovolcano 1,438 m (4,718 ft) Unknown 120 km
Coatepeque Caldera Caldera 746 m (2,448 ft) Unknown 125 km
Santa Ana Stratovolcano 2,381 m (7,812 ft) 2005 129 km
Apaneca Range Stratovolcano(es) 2,036 m (6,680 ft) Unknown 131 km
Moyuta Stratovolcano 1,662 m (5,453 ft) Unknown 136 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 69°F (20°C) 1.2 in Coldest
February 70°F (21°C) 1.0 in
March 73°F (23°C) 0.8 in Driest
April 75°F (24°C) 1.5 in
May 76°F (24°C) 5.1 in Warmest
June 74°F (24°C) 10.9 in Wettest
July 74°F (23°C) 9.5 in
August 74°F (23°C) 8.7 in
September 73°F (23°C) 10.5 in
October 72°F (22°C) 5.8 in
November 70°F (21°C) 3.1 in
December 69°F (20°C) 1.6 in

La Unión has a seasonal temperature swing of 7°F / from 69°F in January to 76°F in May. Total annual precipitation is 59.6 inches, with June being the wettest month (10.9") and March the driest (0.8").

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