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La Unión, Colombia

Full City Profile

41,013 Population 768/sq mi density
3,173 ft Elevation 967 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 72°F in January while summers reach 73°F in July. The area gets 209 sunny days per year. Annual precipitation totals 69.9 inches. The area receives 0.0 inches of snow annually.

Temperature

72°F Jan (22°C) 73°F Jul (23°C)
Annual Average71.8°F
33% above US avg
January Average72°F (22°C)
July Average73°F (23°C)
Sunny Days209 days/yr

Geography

Elevation3,173 ft (967 m)
Area53.4 sq mi (138.3 km²)
Population Density768/sq mi
Coordinates4.5328°N, 76.1032°W
TimezoneAmerica/Bogota

Precipitation & Snow

Annual Rainfall 69.9"
84% above US avg
Snowfall 0.0"
Wettest Month (Oct) 9.21"
Driest Month (Jul) 3.39"

Air Quality

Earthquake History

436 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.2. Most recent: M4.7 on Aug 11, 2025.

Nov 19, 1991 33 km NNW of Santa Genoveva de Docordó, Colombia M7.2 148 km
Sep 2, 1997 24 km SW of Roncesvalles, Colombia M6.8 86 km
Aug 19, 1995 7 km WSW of Neira, Colombia M6.6 89 km
Feb 8, 1995 24 km NW of Darien, Colombia M6.4 75 km
Dec 11, 1997 22 km WSW of Roncesvalles, Colombia M6.4 76 km
Jan 25, 1999 Colombia M6.1 43 km
Mar 23, 2019 3 km WSW of Versalles, Colombia M6.1 14 km
Nov 23, 1990 7 km N of Salento, Colombia M6.1 62 km
Aug 15, 1992 10 km NNE of Palestina, Colombia M5.9 85 km
Sep 22, 2001 17 km NNE of La Cumbre, Colombia M5.9 75 km
Feb 19, 1997 19 km ESE of Sipí, Colombia M5.8 44 km
Aug 27, 2023 5 km E of El Cantón de San Pablo, Colombia M5.7 110 km
Jan 19, 2024 7 km E of Cartago, Colombia M5.6 37 km
Jan 25, 1999 2 km SSE of Córdoba, Colombia M5.5 50 km
Jan 5, 2014 10 km S of Sipí, Colombia M5.5 60 km
Apr 23, 2018 3 km NW of Neira, Colombia M5.3 96 km
Sep 11, 1996 28 km W of Trujillo, Colombia M5.3 61 km
Oct 12, 1993 33 km NNW of Darien, Colombia M5.2 70 km
Sep 14, 2023 9 km S of El Cantón de San Pablo, Colombia M5.2 106 km
Jul 3, 2009 17 km W of Chaparral, Colombia M5.2 102 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

1 tsunami recorded within 500 km.

Year Location Cause Max Wave Deaths Distance
1906 BUENAVENTURA Earthquake 125 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

4 volcanoes within 200 km. Closest: Tolima, Nevado del (87 km).

Name Type Elevation Last Eruption Distance
Tolima, Nevado del Stratovolcano 5,215 m (17,110 ft) 1943 87 km
Santa Isabel Shield 4,944 m (16,220 ft) -850 88 km
Ruiz, Nevado del Stratovolcano 5,279 m (17,320 ft) 2020 95 km
Bravo, Cerro Stratovolcano 3,985 m (13,074 ft) 1720 109 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 72°F (22°C) 4.0 in
February 72°F (22°C) 4.3 in
March 73°F (23°C) 5.7 in Warmest
April 72°F (22°C) 8.1 in
May 72°F (22°C) 7.7 in
June 72°F (22°C) 5.4 in
July 73°F (23°C) 3.4 in Driest
August 73°F (23°C) 4.2 in
September 72°F (22°C) 5.4 in
October 71°F (22°C) 9.2 in Wettest
November 71°F (22°C) 7.6 in Coldest
December 71°F (22°C) 4.9 in

La Unión has a seasonal temperature swing of 2°F / from 71°F in November to 73°F in March. Total annual precipitation is 69.9 inches, with October being the wettest month (9.2") and July the driest (3.4").

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