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San Sebastián Alcomunga, Mexico

Full City Profile

1,720 Population 15/sq mi density
7,339 ft Elevation 2,237 meters
55°F Avg Temperature 13°C
San Sebastián Alcomunga experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 50°F in January while summers reach 57°F in July. The area gets 347 sunny days per year. Annual precipitation totals 58.2 inches. The area receives 0.0 inches of snow annually.

Temperature

50°F Jan (10°C) 57°F Jul (14°C)
Annual Average54.6°F
1% above US avg
January Average50°F (10°C)
July Average57°F (14°C)
Sunny Days347 days/yr

Geography

Elevation7,339 ft (2,237 m)
Area114.7 sq mi (297.1 km²)
Population Density15/sq mi
Coordinates18.4371°N, 97.0268°W
TimezoneAmerica/Mexico_City

Precipitation & Snow

Annual Rainfall 58.2"
53% above US avg
Snowfall 0.0"
Wettest Month (Jul) 10.00"
Driest Month (Mar) 0.59"

Air Quality

Earthquake History

157 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.0. Most recent: M4.1 on Jul 29, 2025.

Jun 15, 1999 1 km SE of Texcala, Mexico M7.0 44 km
Jan 30, 2002 5 km SSW of Tuxtilla, Mexico M5.9 121 km
Feb 23, 1994 12 km W of San Juan de los Cues, Mexico M5.8 46 km
Mar 15, 2025 5 km W of San Pedro Tidaá, Mexico M5.6 130 km
May 6, 1994 7 km NE of San Vicente Boquerón, Mexico M5.3 104 km
Apr 3, 1997 7 km SSE of Piaxtla, Mexico M5.2 130 km
May 4, 2007 2 km W of Reyes Etla, Mexico M5.0 139 km
Nov 26, 1991 3 km NW of Arroyo de Banco, Mexico M4.9 97 km
Feb 3, 2010 5 km NE of Xayacatlán de Bravo, Mexico M4.9 98 km
Nov 6, 2017 5 km E of La Mina, Mexico M4.8 116 km
Aug 4, 2021 8 km N of Antón Lizardo, Mexico M4.8 133 km
Feb 8, 2016 5 km WSW of Atecax, Mexico M4.7 145 km
Dec 27, 1999 4 km SW of Santa Cruz Tacache de Mina, Mexico M4.7 141 km
Nov 15, 1990 21 km N of Coixtlahuaca, Mexico M4.7 67 km
Jul 14, 2010 20 km E of Santa María Camotlán, Mexico M4.6 81 km
Feb 12, 2012 5 km WSW of Ayotzintepec, Mexico M4.6 126 km
Mar 20, 2012 11 km NNW of San Miguel Huautla, Mexico M4.6 70 km
Jul 24, 2016 26 km NNW of Coixtlahuaca, Mexico M4.5 70 km
Feb 9, 2006 7 km WNW of San José Río Manzo, Mexico M4.5 141 km
Jun 11, 2000 6 km ESE of Santiago Tilantongo, Mexico M4.4 132 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year Name Category Closest
2025 Erick Category 4 269 km
2024 John Category 3 285 km
2022 Agatha Category 1 290 km
2021 Grace Category 3 240 km
2017 Katia Category 2 241 km
2017 Max Category 1 277 km
2017 Franklin Category 1 180 km
2012 Carlotta Category 2 235 km
2010 Karl Category 3 57 km
2007 Dean Category 2 229 km
2007 Lorenzo Category 1 229 km
2005 Stan Category 1 225 km
1997 Pauline Category 2 264 km
1997 Rick Category 1 283 km
1990 Diana Category 2 274 km
1989 Cosme Category 1 270 km
1988 Debby Category 1 253 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Nearby Volcanoes

10 volcanoes within 200 km. Closest: Orizaba, Pico de (71 km).

Name Type Elevation Last Eruption Distance
Orizaba, Pico de Stratovolcano 5,564 m (18,255 ft) 1846 71 km
Cumbres, Las Stratovolcano 3,940 m (12,927 ft) -3920 83 km
Gloria, La Volcanic field 3,500 m (11,483 ft) Unknown 102 km
Serdan-Oriental Tuff cone(s) 3,485 m (11,434 ft) Unknown 104 km
Cofre de Perote Shield(s) 4,282 m (14,049 ft) 1150 118 km
Naolinco Volcanic Field Pyroclastic cone(s) 2,000 m (6,562 ft) -1200 140 km
Humeros, Los Caldera(s) 3,150 m (10,335 ft) -4470 145 km
Popocatepetl Stratovolcano(es) 5,393 m (17,694 ft) 2020 180 km
Iztaccihuatl Stratovolcano 5,230 m (17,159 ft) Unknown 189 km
San Martin Shield 1,650 m (5,413 ft) 1796 193 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 50°F (10°C) 1.2 in Coldest
February 55°F (13°C) 0.8 in
March 58°F (15°C) 0.6 in Driest
April 61°F (16°C) 1.3 in
May 62°F (17°C) 2.5 in Warmest
June 60°F (15°C) 8.9 in
July 57°F (14°C) 10.0 in Wettest
August 58°F (14°C) 9.6 in
September 58°F (14°C) 9.0 in
October 56°F (13°C) 5.3 in
November 54°F (12°C) 2.1 in
December 53°F (12°C) 1.7 in

San Sebastián Alcomunga has a seasonal temperature swing of 12°F / from 50°F in January to 62°F in May. Total annual precipitation is 53.0 inches, with July being the wettest month (10.0") and March the driest (0.6").

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