San Jeronimito, Mexico

Full City Profile

6,830 Population 6/sq mi density

108 ft Elevation 33 meters

81°F Avg Temperature 27°C

San Jeronimito has a warm climate with an average annual temperature of 81°F (27°C). Winters average 79°F in January while summers reach 82°F in July. The area gets 261 sunny days per year. Annual precipitation totals 41.3 inches. The area receives 0.0 inches of snow annually.

Temperature

79°F Jan (26°C) 82°F Jul (28°C)

Annual Average	80.8°F
	50% above US avg
January Average	79°F (26°C)
July Average	82°F (28°C)
Sunny Days	261 days/yr

Geography

Elevation	108 ft (33 m)
Area	1,055.8 sq mi (2,734.4 km²)
Population Density	6/sq mi
Coordinates	17.5682°N, 101.3456°W
Timezone	America/Mexico_City

Precipitation & Snow

Annual Rainfall 41.3"

9% above US avg

Snowfall 0.0"

Wettest Month (Sep) 11.61"

Driest Month (Mar) 0.04"

Air Quality

Earthquake History

2,069 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.2. Most recent: M4.2 on Jul 27, 2025.

Apr 18, 2014	9 km ENE of Coyuquilla Norte, Mexico	M7.2	44 km
Jul 15, 1996	26 km NNE of Coyuquilla Norte, Mexico	M6.8	41 km
Apr 18, 2002	27 km SSW of Nuxco, Mexico	M6.8	83 km
Dec 10, 1994	22 km SW of Guayameo, Mexico	M6.5	63 km
May 22, 1997	5 km ENE of Churumuco de Morelos, Mexico	M6.5	127 km
Aug 9, 2000	24 km NNW of El Habillal, Mexico	M6.5	139 km
May 8, 2014	3 km NNE of Nuxco, Mexico	M6.4	74 km
Jun 21, 1999	20 km E of Coahuayutla de Guerrero, Mexico	M6.3	87 km
May 23, 1994	4 km W of San Cristóbal, Mexico	M6.3	109 km
Jan 1, 2004	6 km SW of Petatlán, Mexico	M6.1	10 km
Nov 15, 2012	8 km N of San José Poliutla, Mexico	M6.1	134 km
May 31, 1990	7 km NE of Nuxco, Mexico	M6.0	76 km
May 10, 2014	6 km W of Nuxco, Mexico	M6.0	69 km
Apr 20, 1998	17 km ENE of Aratichanguío, Mexico	M6.0	108 km
Apr 13, 2007	5 km SE of El Paraíso, Mexico	M6.0	125 km
Apr 22, 2013	7 km NNE of Guacamayas, Mexico	M6.0	105 km
Dec 29, 1999	19 km WSW of Guayameo, Mexico	M5.9	76 km
Apr 18, 2002	24 km WSW of Papanoa, Mexico	M5.9	39 km
Apr 28, 2008	21 km WNW of Tlacotepec, Mexico	M5.8	128 km
Jul 25, 1991	61 km SW of Papanoa, Mexico	M5.8	76 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

34 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 5. Most recent: Erick (2025).

Year	Name	Category	Closest
2025	Erick	Category 2	223 km
2024	John	Category 3	133 km
2023	Otis	Category 5	112 km
2023	Beatriz	Category 1	98 km
2022	Blas	Category 1	299 km
2021	Rick	Category 2	59 km
2019	Lorena	Category 1	285 km
2017	Max	Category 1	167 km
2015	Marty	Category 1	141 km
2015	Carlos	Category 1	147 km
2013	Raymond	Category 3	143 km
2013	Erick	Category 1	221 km
2011	Hilary	Category 4	174 km
2011	Beatriz	Category 1	187 km
2009	Andres	Category 1	171 km
2006	John	Category 4	159 km
2001	Adolph	Category 4	295 km
1997	Rick	Category 2	292 km
1997	Pauline	Category 1	186 km
1996	Alma	Category 2	122 km

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

Tsunami History

9 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1985	MEXICO	Earthquake	3.0 m	9,500	143 km
1979	S. MEXICO	Earthquake	1.3 m	5	28 km
1985	MEXICO	Earthquake	1.2 m	—	41 km
2014	S. MEXICO	Earthquake	0.4 m	—	44 km
2013	MEXICO	Earthquake	0.1 m	—	105 km
1981	MEXICO	Earthquake	0.1 m	3	97 km
2002	S. MEXICO	Earthquake	—	—	83 km
1933	MEXICO	Earthquake	—	—	50 km
1845	S. MEXICO	Earthquake	—	—	101 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	79°F (26°C)	0.7 in	Coldest
February	79°F (26°C)	0.1 in
March	79°F (26°C)	0.0 in	Driest
April	80°F (27°C)	0.0 in
May	81°F (27°C)	0.8 in
June	82°F (28°C)	7.3 in	Warmest
July	82°F (28°C)	7.4 in
August	82°F (28°C)	7.6 in
September	82°F (28°C)	11.6 in	Wettest
October	82°F (28°C)	4.8 in
November	81°F (27°C)	0.6 in
December	80°F (27°C)	0.2 in

San Jeronimito has a seasonal temperature swing of 4°F / from 79°F in January to 82°F in June. Total annual precipitation is 41.3 inches, with September being the wettest month (11.6") and March the driest (0.0").

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