Unión Buenavista, Mexico

Full City Profile

1,600 Population 5/sq mi density

5,866 ft Elevation 1,788 meters

71°F Avg Temperature 22°C

Unión Buenavista has a warm climate with an average annual temperature of 71°F (22°C). Winters average 67°F in January while summers reach 72°F in July. The area gets 204 sunny days per year. Annual precipitation totals 81.3 inches. The area receives 0.0 inches of snow annually.

Temperature

67°F Jan (20°C) 72°F Jul (22°C)

Annual Average	71.1°F
	32% above US avg
January Average	67°F (20°C)
July Average	72°F (22°C)
Sunny Days	204 days/yr

Geography

Elevation	5,866 ft (1,788 m)
Area	321.2 sq mi (831.8 km²)
Population Density	5/sq mi
Coordinates	15.7953°N, 92.5442°W
Timezone	America/Mexico_City

Precipitation & Snow

Annual Rainfall 81.3"

114% above US avg

Snowfall 0.0"

Wettest Month (Sep) 16.34"

Driest Month (Feb) 0.39"

Air Quality

Earthquake History

1,146 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.2. Most recent: M4.2 on Aug 27, 2025.

Sep 10, 1993	24 km W of Puerto Madero, Mexico	M7.2	120 km
Mar 14, 1994	6 km ENE of Rizo de Oro, Mexico	M6.9	25 km
Jun 14, 2017	2 km SSW of San Pablo, Guatemala	M6.9	114 km
Jul 7, 2014	4 km W of Puerto Madero, Mexico	M6.9	120 km
Sep 3, 1993	38 km SW of Puerto Madero, Mexico	M6.8	143 km
Feb 1, 2019	5 km SW of Puerto Madero, Mexico	M6.7	124 km
Nov 28, 2001	2 km ESE of El Carmen, Mexico	M6.4	65 km
Sep 7, 2013	7 km ESE of Ignacio López Rayón, Mexico	M6.4	140 km
Jan 16, 2002	2 km SW of Las Brisas, Mexico	M6.4	71 km
Dec 31, 1996	4 km SW of El Ramal (Porvenir), Mexico	M6.4	46 km
Jun 7, 1998	2 km NNE of Cabeza de Toro, Mexico	M6.3	133 km
Mar 12, 2000	3 km ESE of Plan de Ayala, Mexico	M6.3	92 km
Jan 21, 2012	46 km SW of El Arenal, Mexico	M6.2	114 km
Mar 17, 2005	10 km NE of San Bartolo, Guatemala	M6.1	144 km
Apr 10, 1994	3 km E of Pajapita, Guatemala	M6.0	133 km
Jan 19, 2001	6 km NNE of Hidalgo, Mexico	M6.0	48 km
Aug 9, 2023	7 km NNE of Tonalá, Mexico	M5.8	133 km
May 5, 2025	5 km NNE of Nuevo León, Mexico	M5.8	82 km
Jan 17, 2009	5 km NNW of Nueva Colombia, Mexico	M5.8	22 km
Dec 5, 1996	2 km ENE of Brisas Barra de Suchiate, Mexico	M5.8	144 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

3 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 2. Most recent: Barbara (2013).

Year	Name	Category	Closest
2013	Barbara	Category 1	152 km
1998	Lester	Category 2	267 km
1996	Douglas	Category 1	292 km

Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 50.0 m (164 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
2007	JUAN DE GRIJALVA, CHIAPAS	Meteorological	50.0 m	19	131 km

Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

5 volcanoes within 200 km. Closest: Tacana (87 km).

Name	Type	Elevation	Last Eruption	Distance
Tacana	Stratovolcano	4,064 m (13,333 ft)	1986	87 km
Almolonga	Stratovolcano	3,173 m (10,410 ft)	1818	156 km
Santa Maria	Stratovolcano	3,745 m (12,287 ft)	2020	157 km
Chichon, El	Lava dome(s)	1,150 m (3,773 ft)	1982	189 km
Toliman	Stratovolcano(es)	3,158 m (10,361 ft)	Unknown	196 km

Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	67°F (20°C)	0.5 in	Coldest
February	69°F (20°C)	0.4 in	Driest
March	72°F (22°C)	0.6 in
April	74°F (23°C)	1.8 in
May	74°F (24°C)	5.7 in	Warmest
June	73°F (23°C)	14.7 in
July	72°F (22°C)	13.7 in
August	72°F (22°C)	14.6 in
September	72°F (22°C)	16.3 in	Wettest
October	71°F (22°C)	10.2 in
November	69°F (21°C)	2.2 in
December	68°F (20°C)	0.8 in

Unión Buenavista has a seasonal temperature swing of 7°F / from 67°F in January to 74°F in May. Total annual precipitation is 81.3 inches, with September being the wettest month (16.3") and February the driest (0.4").

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