San Simón Almolongas, Mexico

Full City Profile

1,269 Population 26/sq mi density

4,990 ft Elevation 1,521 meters

68°F Avg Temperature 20°C

San Simón Almolongas enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 64°F in January while summers reach 69°F in July. The area gets 362 sunny days per year. Annual precipitation totals 18.0 inches. The area receives 0.0 inches of snow annually.

Temperature

64°F Jan (18°C) 69°F Jul (21°C)

Annual Average	68.4°F
	27% above US avg
January Average	64°F (18°C)
July Average	69°F (21°C)
Sunny Days	362 days/yr

Geography

Elevation	4,990 ft (1,521 m)
Area	48.3 sq mi (125.0 km²)
Population Density	26/sq mi
Coordinates	16.4065°N, 96.7190°W
Timezone	America/Mexico_City

Precipitation & Snow

Annual Rainfall 18.0"

53% below US avg

Snowfall 0.0"

Wettest Month (Jun) 6.61"

Driest Month (Jan) 0.12"

Air Quality

Earthquake History

1,526 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.5. Most recent: M4.1 on Aug 28, 2025.

Sep 30, 1999	15 km W of San Baltazar Loxicha, Mexico	M7.5	45 km
Jun 23, 2020	9 km SE of Santa María Xadani, Mexico	M7.4	96 km
Feb 16, 2018	4 km S of Pinotepa de Don Luis, Mexico	M7.2	134 km
Feb 3, 1998	2 km E of Benito Juárez, Mexico	M6.4	74 km
Jun 30, 2010	2 km ESE of San Agustín Chayuco, Mexico	M6.3	113 km
Feb 25, 1996	7 km SE of Santa María Chico Ometepec, Mexico	M6.2	133 km
Feb 19, 2018	4 km SSE of Santiago Tetepec, Mexico	M5.9	109 km
Jun 14, 2004	0 km W of Santa Catarina Mechoacán, Mexico	M5.9	120 km
Mar 19, 1996	21 km WSW of Bajos de Chila, Mexico	M5.9	88 km
May 8, 2016	3 km WNW of San Agustín Chayuco, Mexico	M5.8	120 km
Feb 17, 2018	8 km SE of José María Morelos, Mexico	M5.8	126 km
Aug 2, 2025	4 km S of Xagacía, Mexico	M5.8	92 km
Jun 27, 2016	8 km S of La Reforma, Mexico	M5.7	120 km
Feb 9, 2010	8 km E of Santa María Colotepec, Mexico	M5.7	59 km
Mar 15, 2025	5 km W of San Pedro Tidaá, Mexico	M5.6	128 km
Aug 28, 1994	6 km N of San Pedro Ocotepec, Mexico	M5.6	115 km
Jun 7, 2002	4 km N of Santa Catarina Loxicha, Mexico	M5.6	34 km
Mar 27, 1996	1 km W of San Miguel Tlacamama, Mexico	M5.6	145 km
Feb 26, 1996	21 km SSW of San José del Progreso, Mexico	M5.5	128 km
Jun 14, 2017	57 km SSW of La Barra de Colotepec, Mexico	M5.5	130 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

12 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Erick (2025).

Year	Name	Category	Closest
2025	Erick	Category 4	131 km
2024	John	Category 3	209 km
2022	Agatha	Category 2	66 km
2017	Max	Category 1	235 km
2013	Barbara	Category 1	280 km
2012	Carlotta	Category 2	70 km
2011	Hilary	Category 2	255 km
2010	Karl	Category 1	277 km
1998	Lester	Category 2	212 km
1997	Pauline	Category 4	81 km
1997	Rick	Category 2	58 km
1989	Cosme	Category 1	249 km

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

Tsunami History

7 tsunamis recorded within 500 km. Highest wave on record: 1.6 m (5 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
2020	OFF COAST OF OAXACA	Earthquake	1.6 m	10	96 km
1965	MEXICO	Earthquake	0.4 m	6	99 km
2022	S. MEXICO	Earthquake	0.2 m	—	85 km
1928	S. MEXICO	Earthquake	0.2 m	4	54 km
1968	ACAPULCO	Earthquake	—	18	110 km
1928	MEXICO	Earthquake	—	—	105 km
1870	PUERTO ANGEL, MEXICO	Earthquake	—	24	121 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	64°F (18°C)	0.1 in	Coldest, Driest
February	68°F (20°C)	0.3 in
March	71°F (21°C)	0.4 in
April	72°F (22°C)	1.3 in
May	73°F (23°C)	3.6 in	Warmest
June	71°F (22°C)	6.6 in	Wettest
July	69°F (21°C)	4.8 in
August	70°F (21°C)	5.1 in
September	70°F (21°C)	5.2 in
October	69°F (21°C)	2.3 in
November	68°F (20°C)	0.5 in
December	67°F (19°C)	0.2 in

San Simón Almolongas has a seasonal temperature swing of 9°F / from 64°F in January to 73°F in May. Total annual precipitation is 30.4 inches, with June being the wettest month (6.6") and January the driest (0.1").

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