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Weather & Climate in Coronado, CA

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Coronado enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 58°F in January while summers reach 70°F in July / relatively mild seasonal variation. The area gets 330 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 9.3 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 6 feet.

Temperature

58°F Jan (14°C) 70°F Jul (21°C)
Annual Average63.9°F
18% above US avg
January Average58°F (14°C)
July Average70°F (21°C)
Sunny Days330 days/yr

Geography

Elevation6 ft (2 m)
Area32.7 sq mi (84.6 km²)
Population Density2,376/sq mi
Coordinates32.6576°N, 117.1565°W
TimezoneAmerica/Los_Angeles
CountySan Diego County County
Nearest AirportSan Diego International (SAN)
6 miles away

Precipitation & Snow

Annual Rainfall 9.3"
75% below US avg
Snowfall 0.0"
Wettest Month (Mar) 2.17"
Driest Month (Jul) 0.04"

Air Quality

AQI Median48.0
RatingGood

Natural Hazard Risk

Overall RiskVery High
Risk Score99.7 / 100
Social Vulnerability24.8 / 100
Community Resilience8.3 / 100

Hazard Breakdown

Tornado Relatively Low
Hurricane Very Low
Earthquake Relatively High
Wildfire Very High
Flood Very High
Hail Relatively Moderate
Strong Wind Relatively Moderate
Heat Wave Relatively High
Winter Weather Relatively Low
Lightning Relatively Moderate
Drought Relatively Low
Cold Wave Very Low
Landslide Relatively High
Coastal Flood Relatively Moderate
Tsunami Relatively Low
Volcano Very Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

5,180 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.7.

Jun 15, 2010 8km ESE of Ocotillo, CA M5.7 117 km 9 km
Jul 7, 2010 20km NNW of Borrego Springs, CA M5.4 106 km 12 km
Mar 23, 1994 35km E of Maneadero, B.C., MX M5.3 137 km 5 km
Apr 4, 2010 15km SSW of Progreso, B.C., MX M5.3 145 km 10 km
Apr 14, 2025 5 km S of Julian, CA M5.2 67 km 14 km
Jun 12, 2005 10km ESE of Anza, CA M5.2 112 km 13 km
Jun 10, 2016 20km NNW of Borrego Springs, CA M5.2 109 km 12 km
Oct 31, 2001 16km ESE of Anza, CA M5.0 112 km 14 km
Jun 15, 2004 67km SE of San Clemente Is. (SE tip), CA M5.0 79 km 10 km
Apr 5, 2010 20km ESE of Ocotillo, CA M5.0 127 km 1 km
Apr 5, 2010 19km ESE of Ocotillo, CA M4.9 126 km 14 km
May 22, 2010 17km WNW of Progreso, B.C., MX M4.9 131 km 8 km
Jul 26, 1997 16km N of Borrego Springs, California M4.9 112 km 11 km
Apr 4, 2020 17km ESE of Anza, CA M4.9 111 km 10 km
Feb 12, 2024 3 km NNW of El Centro, CA M4.8 149 km 18 km
May 8, 2010 19km ESE of Ocotillo, CA M4.8 127 km 6 km
Jun 20, 1997 27km SE of San Clemente Is. (SE tip), California M4.8 89 km 6 km
Apr 5, 2010 21km ESE of Ocotillo, CA M4.7 127 km 0 km
Apr 4, 2010 13km S of Progreso, B.C., MX M4.7 148 km 10 km
Mar 11, 2013 21km ESE of Anza, CA M4.7 114 km 11 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

28 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1. Total: 4 injuries.

Date Rating Distance Path Fatalities
Feb 19, 2005 EF1 92 km 2.8 mi 0
Nov 10, 2000 EF1 35 km 0.4 mi 0
Jan 29, 1998 EF1 46 km 0.5 mi 0
Mar 27, 1991 EF1 55 km 0.2 mi 0
Mar 19, 1991 EF1 12 km 1.0 mi 0
Feb 20, 1980 EF1 14 km 0.1 mi 0
Dec 18, 1978 EF1 64 km 0.8 mi 0
Oct 8, 1961 EF1 60 km 0.1 mi 0
Apr 13, 1956 EF1 8 km 0.1 mi 0
Sep 22, 2007 EF0 42 km 0.1 mi 0
Mar 11, 2006 EF0 54 km 2.0 mi 0
Mar 10, 2006 EF0 46 km 0.2 mi 0
Feb 23, 2005 EF0 8 km 0.1 mi 0
Feb 19, 2005 EF0 78 km 2.5 mi 0
Feb 19, 2005 EF0 85 km 2.2 mi 0
Oct 17, 2004 EF0 64 km 0.2 mi 0
Jul 12, 1999 EF0 79 km 0.1 mi 0
Feb 8, 1998 EF0 43 km 3.0 mi 0
Dec 29, 1992 EF0 95 km 0.1 mi 0
Dec 7, 1992 EF0 60 km 0.1 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 1.2 m (4 ft).

Year Location Cause Max Wave Deaths Distance
1862 S. CALIFORNIA Eruption + Earthquake 1.2 m — 6 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Salton Buttes (156 km).

Name Type Elevation Last Eruption Distance
Salton Buttes Lava dome(s) -40 m (-131 ft) 210 156 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: CEDAR (268,362 acres, 2003).

Year Name Acres Burned Distance
2003 CEDAR 268,362 48 km
2007 WITCH 167,551 59 km
2007 HARRIS 90,443 36 km
2002 PINES 65,407 77 km
2003 PARADISE 55,995 65 km
2007 POOMACHA 47,496 75 km
2003 MINE/OTAY 37,232 29 km
2008 YELLOW 33,232 86 km
2020 INDIA 24,193 87 km
2003 COYOTE 19,215 97 km
2007 AMMO FIRE 19,213 81 km
1993 GUEJITO 17,141 55 km
2006 HORSE 16,659 51 km
2020 VALLEY 16,517 45 km
1986 UNNAMED 16,390 90 km
1989 VAIL 15,632 87 km
2014 PULGAS 14,937 77 km
2011 EAGLE 14,743 97 km
1989 MATEO 13,280 99 km
1996 OTAY 322 12,238 27 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 58°F (14°C) 2.1 in
February 58°F (14°C) 2.1 in
March 59°F (15°C) 2.2 in Wettest
April 62°F (16°C) 0.7 in
May 64°F (18°C) 0.2 in
June 67°F (20°C) 0.1 in
July 70°F (21°C) 0.0 in Driest
August 73°F (23°C) 0.1 in Warmest
September 71°F (22°C) 0.2 in
October 67°F (20°C) 0.4 in
November 61°F (16°C) 1.1 in
December 57°F (14°C) 1.4 in Coldest

Coronado has a seasonal temperature swing of 16°F / from 57°F in December to 73°F in August. Total annual precipitation is 10.5 inches, with March being the wettest month (2.2") and July the driest (0.0").

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