San Marcos, Mexico

Full City Profile

13,282 Population 27/sq mi density

295 ft Elevation 90 meters

81°F Avg Temperature 27°C

San Marcos has a warm climate with an average annual temperature of 81°F (27°C). Winters average 78°F in January while summers reach 82°F in July. The area gets 352 sunny days per year. Annual precipitation totals 42.2 inches. The area receives 0.0 inches of snow annually.

Temperature

78°F Jan (26°C) 82°F Jul (28°C)

Annual Average	80.5°F
	49% above US avg
January Average	78°F (26°C)
July Average	82°F (28°C)
Sunny Days	352 days/yr

Geography

Elevation	295 ft (90 m)
Area	484.4 sq mi (1,254.6 km²)
Population Density	27/sq mi
Coordinates	16.7977°N, 99.3892°W
Timezone	America/Mexico_City

Precipitation & Snow

Annual Rainfall 42.2"

11% above US avg

Snowfall 0.0"

Wettest Month (Sep) 12.48"

Driest Month (Mar) 0.08"

Air Quality

Earthquake History

3,286 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.4. Most recent: M4.3 on Jul 24, 2025.

Mar 20, 2012	6 km E of Santiago Llano Grande, Mexico	M7.4	128 km
Sep 14, 1995	5 km N of Azoyú, Mexico	M7.4	84 km
Jul 19, 1997	4 km ENE of El Ciruelo, Mexico	M6.9	135 km
Oct 24, 1993	1 km ENE of Jolotichán, Mexico	M6.7	72 km
Aug 21, 2013	5 km ESE of Barrio Nuevo de los Muertos, Mexico	M6.2	15 km
May 15, 1993	1 km ENE of Ometepec, Mexico	M6.1	106 km
Apr 13, 2007	5 km SE of El Paraíso, Mexico	M6.0	103 km
May 31, 1990	7 km NE of Nuxco, Mexico	M6.0	149 km
May 15, 1993	2 km SSW of Ometepec, Mexico	M6.0	105 km
Dec 16, 1997	46 km SSW of Barra de Tecoanapa, Mexico	M6.0	96 km
Nov 13, 1993	18 km SW of Montecillos, Mexico	M6.0	98 km
Apr 2, 2012	7 km SSW of Santa María Cortijo, Mexico	M6.0	123 km
Oct 8, 2001	3 km WSW of Tixtlancingo, Mexico	M5.9	70 km
Apr 1, 1991	11 km SW of Corralero, Mexico	M5.8	137 km
Apr 28, 2008	21 km WNW of Tlacotepec, Mexico	M5.8	143 km
Mar 10, 2014	26 km SW of Corralero, Mexico	M5.8	140 km
Apr 27, 2009	2 km WNW of Pochotillo, Mexico	M5.8	27 km
May 24, 2014	2 km S of San Sebastián Ixcapa, Mexico	M5.7	136 km
Mar 20, 2021	6 km NNW of Marquelia, Mexico	M5.7	61 km
May 5, 2011	2 km SE of Cuanacaxtitlán, Mexico	M5.7	82 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year	Name	Category	Closest
2025	Erick	Category 4	35 km
2024	John	Category 3	15 km
2023	Otis	Category 5	45 km
2023	Beatriz	Category 1	257 km
2022	Agatha	Category 2	286 km
2021	Rick	Category 2	224 km
2017	Max	Category 1	30 km
2015	Marty	Category 1	291 km
2015	Carlos	Category 1	132 km
2013	Raymond	Category 3	263 km
2012	Carlotta	Category 2	162 km
2011	Hilary	Category 4	130 km
2006	John	Category 4	218 km
2001	Adolph	Category 4	292 km
2000	Carlotta	Category 2	270 km
1998	Lester	Category 2	289 km
1997	Pauline	Category 3	40 km
1997	Rick	Category 2	146 km
1996	Douglas	Category 2	298 km
1996	Boris	Category 1	132 km

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

Tsunami History

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

Year	Location	Cause	Max Wave	Deaths	Distance
1820	S. MEXICO	Earthquake	4.0 m	—	50 km
1787	SAN MARCOS	Earthquake	4.0 m	11	100 km
1754	S. MEXICO	Earthquake	4.0 m	—	20 km
1732	S. MEXICO	Earthquake	3.0 m	—	54 km
1907	S. MEXICO	Earthquake	2.0 m	8	69 km
1957	S. MEXICO	Earthquake	1.3 m	65	45 km
1962	S. MEXICO	Earthquake	0.8 m	4	50 km
2021	S. MEXICO	Earthquake	0.5 m	3	46 km
1995	S. MEXICO	Earthquake	0.4 m	3	84 km
1962	S. MEXICO	Earthquake	0.3 m	3	46 km
1950	S. MEXICO	Earthquake	0.3 m	—	130 km
2012	S. MEXICO	Earthquake	0.2 m	2	128 km
2026	ACAPULCO	Earthquake	0.1 m	2	15 km
1868	S. MEXICO	Earthquake	—	—	54 km
1845	S. MEXICO	Earthquake	—	—	131 km
1833	S. MEXICO	Earthquake	—	—	54 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	78°F (26°C)	0.5 in	Coldest
February	78°F (26°C)	0.2 in
March	79°F (26°C)	0.1 in	Driest
April	81°F (27°C)	0.1 in
May	83°F (28°C)	1.5 in	Warmest
June	82°F (28°C)	10.4 in
July	82°F (28°C)	9.0 in
August	82°F (28°C)	10.0 in
September	81°F (27°C)	12.5 in	Wettest
October	81°F (27°C)	5.5 in
November	80°F (27°C)	0.9 in
December	78°F (26°C)	0.3 in

San Marcos has a seasonal temperature swing of 5°F / from 78°F in January to 83°F in May. Total annual precipitation is 50.8 inches, with September being the wettest month (12.5") and March the driest (0.1").

View full weather details →