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Castro, Chile

Full City Profile

41,667 Population 7,576/sq mi density
266 ft Elevation 81 meters
50°F Avg Temperature 10°C
Castro experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 57°F in January while summers reach 45°F in July. The area gets 180 sunny days per year. Annual precipitation totals 85.8 inches. The area receives 0.0 inches of snow annually.

Temperature

57°F Jan (14°C) 45°F Jul (7°C)
Annual Average50.4°F
7% below US avg
January Average57°F (14°C)
July Average45°F (7°C)
Sunny Days180 days/yr

Geography

Elevation266 ft (81 m)
Area5.5 sq mi (14.2 km²)
Population Density7,576/sq mi
Coordinates-42.4721°N, 73.7732°W
TimezoneAmerica/Santiago

Precipitation & Snow

Annual Rainfall 85.8"
126% above US avg
Snowfall 0.0"
Wettest Month (Jul) 11.50"
Driest Month (Feb) 3.94"

Air Quality

Earthquake History

121 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.0. Most recent: M4.5 on Jun 7, 2025.

Feb 19, 1996 124 km WSW of Ancud, Chile M6.0 130 km
Jul 6, 2022 131 km W of Castro, Chile M5.5 132 km
Jan 3, 2017 76 km WSW of Quellón, Chile M5.5 115 km
May 24, 2008 49 km WNW of Lago Puelo, Argentina M5.4 143 km
Dec 18, 1997 9 km ESE of Calbuco, Chile M5.2 95 km
Aug 14, 1996 17 km ESE of Castro, Chile M5.2 17 km
May 2, 2008 39 km ENE of Chaitén, Chile M5.2 128 km
Mar 29, 2008 39 km W of Quellón, Chile M5.1 73 km
Aug 24, 2019 Near the coast of Los Lagos, Chile M5.1 86 km
Jul 6, 2012 19 km W of Chonchi, Chile M5.0 28 km
Jul 18, 2010 8 km SSW of Ancud, Chile M5.0 59 km
Jan 30, 2008 23 km WSW of Chonchi, Chile M5.0 32 km
Nov 26, 1995 110 km W of Ancud, Chile M5.0 129 km
Jan 7, 2016 32 km NW of Ancud, Chile M5.0 93 km
May 3, 2008 40 km ENE of Chaitén, Chile M5.0 130 km
May 24, 2008 50 km W of Lago Puelo, Argentina M5.0 138 km
May 2, 2008 34 km NE of Chaitén, Chile M4.9 115 km
Jun 25, 2017 61 km WSW of Lago Puelo, Argentina M4.9 124 km
Feb 26, 2006 51 km W of Chonchi, Chile M4.9 54 km
Apr 5, 2018 33 km WNW of Chonchi, Chile M4.9 34 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

4 tsunamis recorded within 500 km. Highest wave on record: 60.0 m (197 ft).

Year Location Cause Max Wave Deaths Distance
1965 SOUTHERN CHILE Explosion 60.0 m 27 139 km
1837 SOUTHERN CHILE Earthquake 6.0 m 16 19 km
2016 SOUTHERN CHILE Earthquake 0.4 m 105 km
1633 SOUTHERN CHILE Earthquake 75 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

6 volcanoes within 200 km. Closest: Huequi (99 km).

Name Type Elevation Last Eruption Distance
Huequi Lava dome(s) 1,318 m (4,324 ft) 1920 99 km
Michinmahuida Stratovolcano 2,452 m (8,045 ft) 1835 115 km
Apagado Pyroclastic cone 1,210 m (3,970 ft) -590 118 km
Calbuco Stratovolcano 1,974 m (6,476 ft) 2015 159 km
Cayutue-La Vigueria Pyroclastic cone(s) 506 m (1,660 ft) -190 184 km
Osorno Stratovolcano 2,659 m (8,724 ft) 1869 185 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 57°F (14°C) 4.4 in Warmest
February 57°F (14°C) 3.9 in Driest
March 54°F (12°C) 4.7 in
April 52°F (11°C) 7.1 in
May 48°F (9°C) 11.1 in
June 46°F (8°C) 11.1 in
July 45°F (7°C) 11.5 in Coldest, Wettest
August 45°F (7°C) 10.2 in
September 46°F (8°C) 7.0 in
October 49°F (10°C) 5.2 in
November 52°F (11°C) 4.7 in
December 55°F (13°C) 4.9 in

Castro has a seasonal temperature swing of 12°F / from 45°F in July to 57°F in January. Total annual precipitation is 85.8 inches, with July being the wettest month (11.5") and February the driest (3.9").

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