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Weather & Climate in Del Mar, CA

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

Del Mar enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 57°F in January while summers reach 72°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 11.5 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 292 feet.

Temperature

57°F Jan (14°C) 72°F Jul (22°C)
Annual Average64.2°F
19% above US avg
January Average57°F (14°C)
July Average72°F (22°C)
Sunny Days330 days/yr

Geography

Elevation292 ft (89 m)
Area1.8 sq mi (4.6 km²)
Population Density2,280/sq mi
Coordinates32.9639°N, 117.2598°W
TimezoneAmerica/Los_Angeles
CountySan Diego County County
Nearest AirportSan Diego International (SAN)
16 miles away

Precipitation & Snow

Annual Rainfall 11.5"
70% below US avg
Wettest Month (Jan) 2.48"
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

8,255 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.

Jun 28, 1992 The 1992 Big Bear, California Earthquake M6.3 144 km 4 km
Apr 23, 1992 The 1992 Joshua Tree, California Earthquake M6.1 141 km 12 km
Jun 15, 2010 8km ESE of Ocotillo, CA M5.7 129 km 9 km
Jun 29, 1992 3km ESE of Yucca Valley, California M5.7 150 km 10 km
Oct 16, 1999 7km ENE of Running Springs, CA M5.6 143 km 6 km
Jun 28, 1992 11km SSE of Big Bear Lake, California M5.5 139 km 10 km
Feb 28, 1990 The 1990 Upland, California Earthquake M5.5 137 km 3 km
Jun 28, 1992 0km E of Yucca Valley, CA M5.5 150 km 8 km
Jul 7, 2010 20km NNW of Borrego Springs, CA M5.4 89 km 12 km
Sep 15, 1992 9km SE of Yucca Valley, California M5.3 148 km 7 km
Jun 28, 1992 1km N of Big Bear Lake, California M5.3 147 km 7 km
Aug 17, 1992 7km SE of Big Bear Lake, California M5.2 142 km 9 km
Apr 14, 2025 5 km S of Julian, CA M5.2 63 km 14 km
Jun 12, 2005 10km ESE of Anza, CA M5.2 90 km 13 km
Jun 10, 2016 20km NNW of Borrego Springs, CA M5.2 92 km 12 km
Mar 29, 2014 2km NW of Brea, CA M5.1 124 km 5 km
Oct 31, 2001 16km ESE of Anza, CA M5.0 92 km 14 km
Jun 28, 1992 1km SSE of Yucca Valley, California M5.0 149 km 6 km
Aug 21, 1993 12km S of Joshua Tree, California M5.0 147 km 8 km
Jun 28, 1992 7km SSW of Yucca Valley, California M5.0 142 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.

Tornado History

56 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 8 injuries.

Date Rating Distance Path Fatalities
Nov 7, 1966 EF2 98 km 0.2 mi 0
Feb 19, 2005 EF1 58 km 2.8 mi 0
Nov 10, 2000 EF1 22 km 0.4 mi 0
Jan 29, 1998 EF1 10 km 0.5 mi 0
Nov 11, 1997 EF1 95 km 0.2 mi 0
Mar 27, 1991 EF1 22 km 0.2 mi 0
Mar 19, 1991 EF1 28 km 1.0 mi 0
Nov 9, 1982 EF1 78 km 0.2 mi 0
Feb 20, 1980 EF1 21 km 0.1 mi 0
Dec 18, 1978 EF1 29 km 0.8 mi 0
Jul 20, 1974 EF1 92 km 1.0 mi 0
Nov 7, 1966 EF1 93 km 0.5 mi 0
Apr 8, 1965 EF1 97 km 0.1 mi 0
Oct 8, 1961 EF1 24 km 0.1 mi 0
Apr 1, 1958 EF1 78 km 0.5 mi 0
Apr 13, 1956 EF1 41 km 0.1 mi 0
Oct 8, 2022 EF0 82 km 1.6 mi 0
Aug 16, 2018 EF0 85 km 0.2 mi 0
Oct 17, 2015 EF0 82 km 0.0 mi 0
Sep 9, 2012 EF0 91 km 0.0 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).

Tsunami History

2 tsunamis 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 - 30 km
1855 S. CALIFORNIA Eruption + Earthquake - - 148 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Salton Buttes (155 km).

Name Type Elevation Last Eruption Distance
Salton Buttes Lava dome(s) -40 m (-131 ft) 210 155 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 46 km
2007 WITCH 167,551 48 km
2007 HARRIS 90,443 58 km
2002 PINES 65,407 67 km
2003 PARADISE 55,995 42 km
2007 POOMACHA 47,496 49 km
2003 MINE/OTAY 37,232 54 km
2008 YELLOW 33,232 51 km
2022 FAIRVIEW 28,680 87 km
2007 SANTIAGO 27,605 92 km
2020 INDIA 24,193 51 km
1993 CALIFORNIA 23,899 78 km
2018 HOLY 22,845 85 km
1993 ORTEGA 20,912 72 km
2003 COYOTE 19,215 79 km
2007 AMMO FIRE 19,213 46 km
2004 CERRITO 18,605 88 km
1993 GUEJITO 17,141 34 km
2006 HORSE 16,659 66 km
2020 VALLEY 16,517 59 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 57°F (14°C) 2.5 in Wettest
February 57°F (14°C) 2.2 in
March 58°F (14°C) 2.3 in
April 60°F (16°C) 0.9 in
May 63°F (17°C) 0.3 in
June 66°F (19°C) 0.1 in
July 72°F (22°C) 0.0 in Warmest, Driest
August 71°F (22°C) 0.1 in
September 70°F (21°C) 0.3 in
October 66°F (19°C) 0.4 in
November 60°F (16°C) 1.5 in
December 56°F (13°C) 1.7 in Coldest

Del Mar has a seasonal temperature swing of 16°F / from 56°F in December to 72°F in July. Total annual precipitation is 12.2 inches, with January being the wettest month (2.5") and July the driest (0.0").

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