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Unión Roja, Mexico

Full City Profile

1,829 Population 23/sq mi density
1,736 ft Elevation 529 meters
66°F Avg Temperature 19°C
Unión Roja enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 63°F in January while summers reach 67°F in July. The area gets 357 sunny days per year. Annual precipitation totals 108.9 inches. The area receives 0.0 inches of snow annually.

Temperature

63°F Jan (17°C) 67°F Jul (19°C)
Annual Average65.6°F
21% above US avg
January Average63°F (17°C)
July Average67°F (19°C)
Sunny Days357 days/yr

Geography

Elevation1,736 ft (529 m)
Area81.0 sq mi (209.8 km²)
Population Density23/sq mi
Coordinates15.0466°N, 92.2165°W
TimezoneAmerica/Mexico_City

Precipitation & Snow

Annual Rainfall 108.9"
186% above US avg
Snowfall 0.0"
Wettest Month (Sep) 22.32"
Driest Month (Jan) 0.75"

Air Quality

Earthquake History

2,534 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.4. Most recent: M4.2 on Aug 27, 2025.

Nov 7, 2012 33 km S of Champerico, Guatemala M7.4 123 km
Sep 10, 1993 24 km W of Puerto Madero, Mexico M7.2 59 km
Jul 7, 2014 4 km W of Puerto Madero, Mexico M6.9 45 km
Jun 14, 2017 2 km SSW of San Pablo, Guatemala M6.9 27 km
Mar 14, 1994 6 km ENE of Rizo de Oro, Mexico M6.9 108 km
Sep 3, 1993 38 km SW of Puerto Madero, Mexico M6.8 79 km
Feb 1, 2019 5 km SW of Puerto Madero, Mexico M6.7 48 km
Jan 10, 1998 10 km SSW of San José El Ídolo, Guatemala M6.6 110 km
Nov 11, 2012 32 km SW of Champerico, Guatemala M6.5 102 km
Sep 7, 2013 7 km ESE of Ignacio López Rayón, Mexico M6.4 50 km
Sep 19, 1993 105 km WSW of Puerto Madero, Mexico M6.4 141 km
Jan 16, 2002 2 km SW of Las Brisas, Mexico M6.4 111 km
Dec 31, 1996 4 km SW of El Ramal (Porvenir), Mexico M6.4 119 km
Nov 28, 2001 2 km ESE of El Carmen, Mexico M6.4 112 km
May 12, 2024 28 km WSW of Brisas Barra de Suchiate, Mexico M6.4 74 km
May 3, 2009 5 km S of San Lucas Tolimán, Guatemala M6.3 128 km
May 30, 1992 62 km WSW of Puerto Madero, Mexico M6.3 102 km
Mar 12, 2000 3 km ESE of Plan de Ayala, Mexico M6.3 26 km
Feb 16, 2022 12 km WSW of Nueva Concepción, Guatemala M6.2 133 km
Jan 21, 2012 46 km SW of El Arenal, Mexico M6.2 87 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

3 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 1. Most recent: Barbara (2013).

Year Name Category Closest
2013 Barbara Category 1 219 km
1998 Lester Category 1 253 km
1996 Douglas Category 1 232 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

3 tsunamis recorded within 500 km. Highest wave on record: 4.0 m (13 ft).

Year Location Cause Max Wave Deaths Distance
2005 LAGO DE ATITLAN Meteorological 4.0 m 114 km
2012 GUATEMALA Earthquake 0.4 m 48 123 km
1950 GUATEMALA Earthquake 0.2 m 88 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

8 volcanoes within 200 km. Closest: Tacana (15 km).

Name Type Elevation Last Eruption Distance
Tacana Stratovolcano 4,064 m (13,333 ft) 1986 15 km
Santa Maria Stratovolcano 3,745 m (12,287 ft) 2020 78 km
Almolonga Stratovolcano 3,173 m (10,410 ft) 1818 80 km
Toliman Stratovolcano(es) 3,158 m (10,361 ft) Unknown 121 km
Acatenango Stratovolcano(es) 3,976 m (13,045 ft) 1972 156 km
Fuego Stratovolcano(es) 3,763 m (12,346 ft) 2020 157 km
Agua Stratovolcano 3,760 m (12,336 ft) Unknown 171 km
Pacaya Complex 2,569 m (8,428 ft) 2020 189 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 63°F (17°C) 0.8 in Coldest, Driest
February 74°F (23°C) 0.9 in
March 76°F (24°C) 2.2 in
April 77°F (25°C) 6.0 in Warmest
May 77°F (25°C) 13.2 in
June 76°F (24°C) 19.5 in
July 67°F (19°C) 15.4 in
August 75°F (24°C) 18.7 in
September 75°F (24°C) 22.3 in Wettest
October 75°F (24°C) 15.1 in
November 74°F (24°C) 5.0 in
December 74°F (23°C) 1.4 in

Unión Roja has a seasonal temperature swing of 14°F / from 63°F in January to 77°F in April. Total annual precipitation is 120.5 inches, with September being the wettest month (22.3") and January the driest (0.8").

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