Unión Jamaica, Mexico

Full City Profile

758 Population 3/sq mi density

1,207 ft Elevation 368 meters

56°F Avg Temperature 13°C

Unión Jamaica enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 52°F in January while summers reach 57°F in July. The area gets 351 sunny days per year. Annual precipitation totals 61.1 inches. The area receives 0.0 inches of snow annually.

Temperature

52°F Jan (11°C) 57°F Jul (14°C)

Annual Average	55.9°F
	4% above US avg
January Average	52°F (11°C)
July Average	57°F (14°C)
Sunny Days	351 days/yr

Geography

Elevation	1,207 ft (368 m)
Area	251.8 sq mi (652.1 km²)
Population Density	3/sq mi
Coordinates	15.3384°N, 92.5255°W
Timezone	America/Mexico_City

Precipitation & Snow

Annual Rainfall 61.1"

61% above US avg

Snowfall 0.0"

Wettest Month (Sep) 17.80"

Driest Month (Jan) 0.20"

Air Quality

Earthquake History

2,027 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	70 km
Mar 14, 1994	6 km ENE of Rizo de Oro, Mexico	M6.9	74 km
Jun 14, 2017	2 km SSW of San Pablo, Guatemala	M6.9	73 km
Jul 7, 2014	4 km W of Puerto Madero, Mexico	M6.9	69 km
Sep 3, 1993	38 km SW of Puerto Madero, Mexico	M6.8	93 km
Feb 1, 2019	5 km SW of Puerto Madero, Mexico	M6.7	74 km
Nov 11, 2012	32 km SW of Champerico, Guatemala	M6.5	140 km
Sep 19, 1993	105 km WSW of Puerto Madero, Mexico	M6.4	139 km
Jan 16, 2002	2 km SW of Las Brisas, Mexico	M6.4	68 km
Nov 28, 2001	2 km ESE of El Carmen, Mexico	M6.4	67 km
May 12, 2024	28 km WSW of Brisas Barra de Suchiate, Mexico	M6.4	102 km
Dec 31, 1996	4 km SW of El Ramal (Porvenir), Mexico	M6.4	73 km
Sep 7, 2013	7 km ESE of Ignacio López Rayón, Mexico	M6.4	92 km
May 30, 1992	62 km WSW of Puerto Madero, Mexico	M6.3	109 km
Mar 12, 2000	3 km ESE of Plan de Ayala, Mexico	M6.3	41 km
Jan 21, 2012	46 km SW of El Arenal, Mexico	M6.2	73 km
Mar 17, 2005	10 km NE of San Bartolo, Guatemala	M6.1	125 km
May 8, 1999	9 km SSW of Champerico, Guatemala	M6.1	140 km
Apr 27, 2016	75 km WSW of Puerto Madero, Mexico	M6.0	110 km
Mar 2, 2014	98 km SW of Puerto Madero, Mexico	M6.0	145 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	174 km
1998	Lester	Category 2	238 km
1996	Douglas	Category 1	246 km

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

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 0.2 m (1 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1950	GUATEMALA	Earthquake	0.2 m	—	132 km

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

Nearby Volcanoes

4 volcanoes within 200 km. Closest: Tacana (50 km).

Name	Type	Elevation	Last Eruption	Distance
Tacana	Stratovolcano	4,064 m (13,333 ft)	1986	50 km
Santa Maria	Stratovolcano	3,745 m (12,287 ft)	2020	123 km
Almolonga	Stratovolcano	3,173 m (10,410 ft)	1818	124 km
Toliman	Stratovolcano(es)	3,158 m (10,361 ft)	Unknown	165 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	52°F (11°C)	0.2 in	Coldest, Driest
February	70°F (21°C)	0.4 in
March	72°F (22°C)	0.9 in
April	74°F (23°C)	2.6 in
May	74°F (23°C)	7.7 in	Warmest
June	73°F (23°C)	15.6 in
July	57°F (14°C)	13.3 in
August	73°F (23°C)	15.5 in
September	72°F (22°C)	17.8 in	Wettest
October	72°F (22°C)	10.2 in
November	71°F (22°C)	2.1 in
December	70°F (21°C)	0.4 in

Unión Jamaica has a seasonal temperature swing of 22°F / from 52°F in January to 74°F in May. Total annual precipitation is 86.8 inches, with September being the wettest month (17.8") and January the driest (0.2").

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