Río Santiago, Mexico

Full City Profile

946 Population 2/sq mi density

2,277 ft Elevation 694 meters

75°F Avg Temperature 24°C

Río Santiago has a warm climate with an average annual temperature of 75°F (24°C). Winters average 72°F in January while summers reach 76°F in July. The area gets 230 sunny days per year. Annual precipitation totals 59.2 inches. The area receives 0.0 inches of snow annually.

Temperature

72°F Jan (22°C) 76°F Jul (24°C)

Annual Average	75.1°F
	39% above US avg
January Average	72°F (22°C)
July Average	76°F (24°C)
Sunny Days	230 days/yr

Geography

Elevation	2,277 ft (694 m)
Area	648.4 sq mi (1,679.2 km²)
Population Density	2/sq mi
Coordinates	17.2535°N, 100.3173°W
Timezone	America/Mexico_City

Precipitation & Snow

Annual Rainfall 59.2"

56% above US avg

Snowfall 0.0"

Wettest Month (Sep) 13.19"

Driest Month (Mar) 0.20"

Air Quality

Earthquake History

2,641 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.2. Most recent: M4.3 on Jul 24, 2025.

Apr 18, 2014	9 km ENE of Coyuquilla Norte, Mexico	M7.2	71 km
Jul 15, 1996	26 km NNE of Coyuquilla Norte, Mexico	M6.8	79 km
Apr 18, 2002	27 km SSW of Nuxco, Mexico	M6.8	65 km
Dec 10, 1994	22 km SW of Guayameo, Mexico	M6.5	150 km
May 8, 2014	3 km NNE of Nuxco, Mexico	M6.4	46 km
May 23, 1994	4 km W of San Cristóbal, Mexico	M6.3	104 km
Aug 21, 2013	5 km ESE of Barrio Nuevo de los Muertos, Mexico	M6.2	97 km
Nov 15, 2012	8 km N of San José Poliutla, Mexico	M6.1	122 km
Jan 1, 2004	6 km SW of Petatlán, Mexico	M6.1	108 km
Apr 13, 2007	5 km SE of El Paraíso, Mexico	M6.0	14 km
May 31, 1990	7 km NE of Nuxco, Mexico	M6.0	41 km
May 10, 2014	6 km W of Nuxco, Mexico	M6.0	53 km
Oct 8, 2001	3 km WSW of Tixtlancingo, Mexico	M5.9	41 km
Apr 18, 2002	24 km WSW of Papanoa, Mexico	M5.9	99 km
Apr 28, 2008	21 km WNW of Tlacotepec, Mexico	M5.8	68 km
Apr 27, 2009	2 km WNW of Pochotillo, Mexico	M5.8	96 km
Jul 25, 1991	61 km SW of Papanoa, Mexico	M5.8	121 km
Jan 1, 2004	13 km SSW of Petatlán, Mexico	M5.7	108 km
May 1, 2012	19 km W of Placeres del Oro, Mexico	M5.7	138 km
May 11, 1990	7 km NW of El Súchil, Mexico	M5.6	39 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year	Name	Category	Closest
2025	Erick	Category 4	109 km
2024	John	Category 3	55 km
2023	Otis	Category 5	24 km
2023	Beatriz	Category 1	166 km
2021	Rick	Category 2	145 km
2017	Max	Category 1	96 km
2015	Marty	Category 1	207 km
2015	Carlos	Category 1	103 km
2013	Raymond	Category 3	190 km
2012	Carlotta	Category 1	271 km
2011	Hilary	Category 4	149 km
2011	Beatriz	Category 1	277 km
2009	Andres	Category 1	267 km
2006	John	Category 4	203 km
2001	Adolph	Category 4	299 km
2000	Carlotta	Category 3	298 km
1997	Rick	Category 2	224 km
1997	Pauline	Category 2	71 km
1996	Alma	Category 2	236 km
1996	Hernan	Category 1	214 km

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

Tsunami History

15 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	—	76 km
1754	S. MEXICO	Earthquake	4.0 m	—	129 km
1732	S. MEXICO	Earthquake	3.0 m	—	67 km
1907	S. MEXICO	Earthquake	2.0 m	8	44 km
1979	S. MEXICO	Earthquake	1.3 m	5	119 km
1962	S. MEXICO	Earthquake	0.8 m	4	76 km
2021	S. MEXICO	Earthquake	0.5 m	3	65 km
2014	S. MEXICO	Earthquake	0.4 m	—	71 km
1962	S. MEXICO	Earthquake	0.3 m	3	87 km
2026	ACAPULCO	Earthquake	0.1 m	2	115 km
2002	S. MEXICO	Earthquake	—	—	65 km
1933	MEXICO	Earthquake	—	—	65 km
1868	S. MEXICO	Earthquake	—	—	67 km
1845	S. MEXICO	Earthquake	—	—	41 km
1833	S. MEXICO	Earthquake	—	—	67 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	72°F (22°C)	0.7 in	Coldest
February	73°F (23°C)	0.2 in
March	75°F (24°C)	0.2 in	Driest
April	77°F (25°C)	0.4 in
May	78°F (25°C)	2.3 in	Warmest
June	77°F (25°C)	11.2 in
July	76°F (24°C)	11.1 in
August	76°F (24°C)	10.9 in
September	75°F (24°C)	13.2 in	Wettest
October	75°F (24°C)	6.6 in
November	74°F (23°C)	1.9 in
December	73°F (23°C)	0.5 in

Río Santiago has a seasonal temperature swing of 5°F / from 72°F in January to 78°F in May. Total annual precipitation is 59.2 inches, with September being the wettest month (13.2") and March the driest (0.2").

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