Weather & Climate in Hermosa Beach, CA

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

Hermosa Beach enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 57°F in January while summers reach 69°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 13.8 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 19 feet.

Temperature

57°F Jan (14°C) 69°F Jul (21°C)

Annual Average	62.5°F
	16% above US avg
January Average	57°F (14°C)
July Average	69°F (21°C)
Sunny Days	330 days/yr

Geography

Elevation	19 ft (6 m)
Area	1.4 sq mi (3.7 km²)
Population Density	13,460/sq mi
Coordinates	33.8698°N, 118.4053°W
Timezone	America/Los_Angeles
County	Los Angeles County County
Nearest Airport	Los Angeles International (LAX) 5 miles away

Precipitation & Snow

Annual Rainfall 13.8"

64% below US avg

Wettest Month (Jan) 2.91"

Driest Month (Jun) 0.04"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very High
Risk Score	100.0 / 100
Social Vulnerability	55.4 / 100
Community Resilience	13.6 / 100

Hazard Breakdown

Tornado	Relatively High
Hurricane	No Rating
Earthquake	Very High
Wildfire	Very High
Flood	Very High
Hail	Relatively Moderate
Strong Wind	Relatively Moderate
Heat Wave	Relatively High
Winter Weather	Relatively Moderate
Lightning	Very High
Drought	Relatively Low
Cold Wave	Very Low
Landslide	Relatively High
Coastal Flood	Relatively High
Tsunami	Relatively Low
Avalanche	Relatively High

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

5,008 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.7.

Jan 17, 1994	Northridge, California, earthquake	M6.7	40 km	18 km
Jan 17, 1994	1km ENE of Granada Hills, California	M5.9	46 km	5 km
Jun 28, 1991	The 1991 Sierra Madre, California Earthquake	M5.8	59 km	8 km
Oct 16, 1999	7km ENE of Running Springs, CA	M5.6	132 km	6 km
Jan 17, 1994	7km NNE of Simi Valley, California	M5.6	57 km	9 km
Jun 28, 1992	11km SSE of Big Bear Lake, California	M5.5	147 km	10 km
Feb 28, 1990	The 1990 Upland, California Earthquake	M5.5	72 km	3 km
Apr 5, 2018	31km SW of Santa Cruz Is. (E end), CA	M5.3	123 km	10 km
Nov 27, 1992	10km NNW of Big Bear City, California	M5.3	148 km	0 km
Jun 28, 1992	1km N of Big Bear Lake, California	M5.3	144 km	7 km
Dec 4, 1992	10km SE of Lucerne Valley, California	M5.3	149 km	1 km
Mar 20, 1994	3km WNW of Panorama City, California	M5.2	41 km	12 km
Jan 18, 1994	10km ESE of Piru, California	M5.2	63 km	11 km
Aug 17, 1992	7km SE of Big Bear Lake, California	M5.2	147 km	9 km
Jan 17, 1994	9km N of Chatsworth, California	M5.2	56 km	5 km
Mar 29, 2014	2km NW of Brea, CA	M5.1	46 km	5 km
Aug 20, 2023	7 km SE of Ojai, CA	M5.1	94 km	5 km
Apr 26, 1997	12km ESE of Piru, California	M5.1	61 km	16 km
Jan 19, 1994	10km SSW of Valencia, California	M5.1	60 km	11 km
Jan 19, 1994	8km ESE of Piru, California	M5.1	63 km	14 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

91 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 53 injuries.

Date	Rating	Distance	Path	Fatalities
Mar 1, 1983	EF2	13 km	3.5 mi	0
Nov 9, 1982	EF2	21 km	10.0 mi	0
Nov 9, 1982	EF2	35 km	1.0 mi	0
Nov 7, 1966	EF2	7 km	10.3 mi	0
Nov 7, 1966	EF2	10 km	0.1 mi	0
Nov 7, 1966	EF2	51 km	0.2 mi	0
Mar 22, 2023	EF1	30 km	0.5 mi	0
Jan 19, 2010	EF1	31 km	4.6 mi	0
Jan 9, 1998	EF1	24 km	1.5 mi	0
Dec 21, 1997	EF1	44 km	1.0 mi	0
Nov 11, 1997	EF1	58 km	0.2 mi	0
Jan 14, 1993	EF1	42 km	1.0 mi	0
Dec 7, 1992	EF1	40 km	0.1 mi	0
Dec 7, 1992	EF1	45 km	0.1 mi	0
Mar 20, 1992	EF1	33 km	0.2 mi	0
Mar 27, 1991	EF1	44 km	3.0 mi	0
Mar 16, 1986	EF1	45 km	1.2 mi	0
Oct 1, 1983	EF1	8 km	0.3 mi	0
Nov 9, 1982	EF1	31 km	0.2 mi	0
Nov 9, 1982	EF1	75 km	0.2 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

4 tsunamis recorded within 500 km. Highest wave on record: 3.4 m (11 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1812	S. CALIFORNIA	Eruption + Earthquake	3.4 m	1	143 km
1930	S. CALIFORNIA	Eruption + Earthquake	3.1 m	1	28 km
1994	WEST COAST, USA	Earthquake	0.1 m	57	40 km
1855	S. CALIFORNIA	Eruption + Earthquake	—	—	38 km

Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: STATION (165,368 acres, 2009).

Year	Name	Acres Burned	Distance
2009	STATION	165,368	57 km
2006	DAY	159,713	98 km
2020	BOBCAT	115,728	67 km
2003	SIMI	107,756	63 km
2018	WOOLSEY	97,962	48 km
2003	PIRU	63,920	80 km
2003	GRAND PRIX	50,799	93 km
1985	FERNDALE	46,724	91 km
2016	SAND	41,561	58 km
2007	BUCKWEED	41,332	72 km
1993	GREEN MEADOWS	38,115	59 km
2002	WILLIAMS	37,505	68 km
2007	RANCH	37,009	78 km
2016	BLUE CUT	36,856	97 km
2013	POWERHOUSE	32,329	89 km
2020	LAKE	30,971	92 km
2008	FREEWAY COMPLEX	29,350	61 km
2007	SANTIAGO	27,605	71 km
1993	STECKEL	26,202	89 km
2005	TOPANGA	24,133	47 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	57°F (14°C)	2.9 in	Coldest, Wettest
February	59°F (15°C)	2.8 in
March	59°F (15°C)	2.2 in
April	62°F (16°C)	0.8 in
May	64°F (18°C)	0.1 in
June	67°F (20°C)	0.0 in
July	69°F (21°C)	0.0 in	Driest
August	72°F (22°C)	0.1 in	Warmest
September	71°F (22°C)	0.2 in
October	68°F (20°C)	0.3 in
November	62°F (16°C)	1.5 in
December	58°F (14°C)	1.8 in

Hermosa Beach has a seasonal temperature swing of 15°F / from 57°F in January to 72°F in August. Total annual precipitation is 12.7 inches, with January being the wettest month (2.9") and July the driest (0.0").

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