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San Antonio, Ecuador

Full City Profile

9,734 ft Elevation 2,967 meters
51°F Avg Temperature 11°C
San Antonio experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 45°F in January while summers reach 52°F in July. The area gets 316 sunny days per year. Annual precipitation totals 86.8 inches. The area receives 0.2 inches of snow annually.

Temperature

45°F Jan (7°C) 52°F Jul (11°C)
Annual Average51.4°F
5% below US avg
January Average45°F (7°C)
July Average52°F (11°C)
Sunny Days316 days/yr

Geography

Elevation9,734 ft (2,967 m)
Area143.8 sq mi (372.4 km²)
Population Density0/sq mi
Coordinates-0.2888°N, 78.5772°W
TimezoneAmerica/Guayaquil

Precipitation & Snow

Annual Rainfall 86.8"
128% above US avg
Snowfall 0.2"
Wettest Month (Apr) 5.40"
Driest Month (Jul) 1.40"

Air Quality

Earthquake History

161 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.9. Most recent: M4.6 on Aug 16, 2025.

May 18, 2016 24 km NW of Rosa Zarate, Ecuador M6.9 145 km
Mar 28, 1996 9 km SSW of Pujilí, Ecuador M6.0 85 km
Dec 26, 1992 28 km W of Tena, Ecuador M5.9 99 km
Jul 25, 2022 9 km N of San Gabriel, Ecuador M5.7 136 km
Mar 27, 2015 34 km SE of Tena, Ecuador M5.5 150 km
Aug 25, 1996 10 km WSW of San Miguel de Salcedo, Ecuador M5.5 89 km
Jan 31, 2025 32 km W of Archidona, Ecuador M5.5 83 km
May 11, 1994 51 km WNW of Cotacachi, Ecuador M5.3 83 km
Mar 28, 2004 27 km ENE of Píllaro, Ecuador M5.3 88 km
Aug 11, 1990 20 km NNE of Quito, Ecuador M5.3 29 km
Sep 13, 2003 29 km ENE of San Miguel de Salcedo, Ecuador M5.3 82 km
Mar 30, 2020 30 km ESE of Pimampiro, Ecuador M5.2 118 km
Feb 8, 2012 near the coast of Ecuador M5.2 130 km
Oct 9, 2009 3 km N of Tena, Ecuador M5.2 113 km
Oct 8, 2000 Colombia-Ecuador border region M5.1 92 km
Aug 12, 2014 20 km WSW of Cayambe, Ecuador M5.1 41 km
Jun 18, 2023 36 km NE of Archidona, Ecuador M5.1 119 km
Jul 7, 1994 30 km ENE of Píllaro, Ecuador M5.1 93 km
May 22, 2018 28 km NW of Cotacachi, Ecuador M5.0 89 km
Apr 15, 2004 22 km E of San Miguel de Salcedo, Ecuador M5.0 84 km
Source: USGS (M2.5+, 1990–2025)

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Atacazo (8 km).

Name Type Elevation Last Eruption Distance
Atacazo Stratovolcano 4,463 m (14,642 ft) -320 8 km
Guagua Pichincha Stratovolcano 4,784 m (15,696 ft) 2002 13 km
Chacana Caldera 4,643 m (15,233 ft) 1773 38 km
Pululahua Caldera 3,356 m (11,010 ft) 290 39 km
Illiniza Stratovolcano 5,248 m (17,218 ft) Unknown 44 km
Cotopaxi Stratovolcano 5,911 m (19,393 ft) 2016 46 km
Antisana Stratovolcano 5,753 m (18,875 ft) 1802 53 km
Mojanda Stratovolcano(es) 4,263 m (13,986 ft) Unknown 58 km
Aliso Stratovolcano 4,267 m (13,999 ft) -2450 70 km
Cuicocha Caldera 3,246 m (10,650 ft) 650 71 km
Cayambe Compound 5,790 m (18,996 ft) 1786 75 km
Imbabura Compound 4,609 m (15,121 ft) -5550 75 km
Chachimbiro Stratovolcano 4,106 m (13,471 ft) -3740 90 km
Reventador Stratovolcano 3,562 m (11,686 ft) 2020 105 km
Sumaco Stratovolcano 3,990 m (13,091 ft) 1895 109 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 45°F (7°C) 3.8 in Coldest
February 52°F (11°C) 4.7 in
March 52°F (11°C) 5.2 in
April 52°F (11°C) 5.4 in Warmest, Wettest
May 52°F (11°C) 4.0 in
June 52°F (11°C) 2.3 in
July 52°F (11°C) 1.4 in Driest
August 52°F (11°C) 1.5 in
September 52°F (11°C) 2.9 in
October 52°F (11°C) 4.4 in
November 52°F (11°C) 4.3 in
December 52°F (11°C) 3.7 in

San Antonio has a seasonal temperature swing of 8°F / from 45°F in January to 52°F in April. Total annual precipitation is 43.6 inches, with April being the wettest month (5.4") and July the driest (1.4").

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