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Weather & Climate in Belvedere, CA

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

Belvedere enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 51°F in January while summers reach 63°F in July / relatively mild seasonal variation. The area gets 323 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 24.4 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 155 feet.

Temperature

51°F Jan (11°C) 63°F Jul (17°C)
Annual Average58.8°F
9% above US avg
January Average51°F (11°C)
July Average63°F (17°C)
Sunny Days323 days/yr

Geography

Elevation155 ft (47 m)
Area0.5 sq mi (1.3 km²)
Population Density4,644/sq mi
Coordinates37.8736°N, 122.4710°W
TimezoneAmerica/Los_Angeles
CountySan Mateo County County
Nearest AirportMetro Oakland International (OAK)
17 miles away

Precipitation & Snow

Annual Rainfall 24.4"
36% below US avg
Snowfall 0.0"
Wettest Month (Jan) 7.17"
Driest Month (Jul) 0.08"

Air Quality

AQI Median48.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively High
Risk Score99.2 / 100
Social Vulnerability20.5 / 100
Community Resilience97.6 / 100

Hazard Breakdown

Tornado Relatively Low
Earthquake Relatively High
Wildfire Relatively Moderate
Flood Relatively High
Hail Very Low
Strong Wind Relatively Low
Heat Wave Relatively Moderate
Winter Weather Very Low
Lightning Relatively Moderate
Drought Relatively High
Cold Wave No Rating
Landslide Relatively High
Coastal Flood Relatively High
Tsunami Relatively Moderate
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

4,925 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.

Aug 24, 2014 The 2014 South Napa, California Earthquake M6.0 40 km 11 km
Apr 18, 1990 5 km NNW of Aromas, California M5.4 127 km 5 km
Apr 18, 1990 4 km E of Interlaken, California M5.1 123 km 7 km
Jan 16, 1993 9 km E of Gilroy, California M4.9 130 km 7 km
Apr 19, 1996 2 km E of Aromas, California M4.9 134 km 5 km
May 14, 2002 5 km SSW of Gilroy, California M4.9 127 km 7 km
Apr 18, 1990 4 km NNW of Aromas, California M4.9 127 km 6 km
Sep 3, 2000 5 km WSW of Yountville, California M4.9 56 km 9 km
Sep 4, 1995 13 km SW of Middletown, California M4.8 93 km 7 km
May 12, 2006 7 km W of Cobb, California M4.7 109 km 4 km
May 21, 1996 8 km ESE of East Foothills, California M4.7 87 km 8 km
Apr 18, 1990 4 km N of Aromas, California M4.7 128 km 4 km
Aug 11, 1993 14 km ESE of Alum Rock, California M4.7 94 km 9 km
Jan 2, 2025 4 km NW of Cobb, CA M4.7 111 km 1 km
Aug 18, 1999 0 km S of Bolinas, California M4.6 19 km 8 km
Mar 24, 1991 1 km NNE of Interlaken, California M4.6 121 km 15 km
Jan 11, 2000 6 km N of Geyserville, California M4.6 107 km 6 km
Feb 18, 2004 4 km WNW of Cobb, California M4.6 110 km 3 km
Jan 12, 2014 8 km W of Cobb, California M4.5 109 km 2 km
Sep 19, 2023 15 km SW of Westley, CA M4.5 114 km 4 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

42 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 9 injuries.

Date Rating Distance Path Fatalities
May 5, 1998 EF2 68 km 0.6 mi 0
Jun 1, 1958 EF2 64 km 15.0 mi 0
Jan 11, 1951 EF2 64 km 5.7 mi 0
Dec 14, 2024 EF1 100 km 0.3 mi 0
Mar 18, 2011 EF1 68 km 0.1 mi 0
Jan 23, 2010 EF1 62 km 1.6 mi 0
Mar 20, 2005 EF1 25 km 3.0 mi 0
Dec 5, 1998 EF1 67 km 1.5 mi 0
May 5, 1998 EF1 63 km 0.3 mi 0
Dec 23, 1996 EF1 58 km 6.0 mi 0
Feb 22, 1996 EF1 79 km 1.0 mi 0
Dec 2, 1992 EF1 70 km 7.5 mi 0
Dec 2, 1992 EF1 81 km 3.0 mi 0
Dec 2, 1992 EF1 66 km 1.0 mi 0
Feb 27, 1983 EF1 67 km 0.8 mi 0
Jan 14, 1980 EF1 68 km 0.3 mi 0
Nov 10, 1964 EF1 78 km 1.0 mi 0
Feb 17, 1959 EF1 99 km 0.5 mi 0
Apr 1, 1958 EF1 30 km 0.2 mi 0
Apr 27, 2016 EF0 78 km 0.2 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

5 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).

Year Location Cause Max Wave Deaths Distance
1868 N. CALIFORNIA Eruption + Earthquake 4.5 m 30 38 km
1989 N. CALIFORNIA Earthquake 1.0 m 62 107 km
1856 N. CALIFORNIA Eruption + Earthquake 0.6 m — 44 km
1906 N. CALIFORNIA Eruption + Earthquake 0.1 m — 20 km
1865 N. CALIFORNIA Eruption + Earthquake — — 90 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Clear Lake (125 km).

Name Type Elevation Last Eruption Distance
Clear Lake Volcanic field 1,439 m (4,721 ft) Unknown 125 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: SCU LIGHTNING COMPLEX (405,787 acres, 2020).

Year Name Acres Burned Distance
2020 SCU LIGHTNING COMPLEX 405,787 95 km
2020 HENNESSEY 314,241 85 km
2018 COUNTY 92,450 94 km
2020 CZU AUG LIGHTNING 85,894 84 km
2019 KINCADE 77,780 93 km
2020 GLASS 68,020 76 km
2017 NUNS 56,883 53 km
2020 WALLBRIDGE 55,194 95 km
2017 ATLAS 51,664 58 km
2004 RUMSEY 39,335 100 km
2017 TUBBS 36,981 79 km
1988 MILLER 35,750 70 km
2024 CORRAL 16,138 93 km
2004 GEYSERS 12,075 98 km
2009 CORRAL 12,006 92 km
1995 VISION 11,931 39 km
1985 LEXINGTON 11,550 95 km
2015 WRAGG 8,455 76 km
2009 LOCKHEED 8,287 91 km
2014 MONTICELLO 6,984 82 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 51°F (11°C) 7.2 in Wettest
February 53°F (12°C) 6.1 in
March 55°F (13°C) 5.0 in
April 57°F (14°C) 1.9 in
May 61°F (16°C) 0.7 in
June 64°F (18°C) 0.2 in
July 63°F (17°C) 0.1 in Driest
August 67°F (19°C) 0.1 in Warmest
September 67°F (19°C) 0.4 in
October 63°F (17°C) 1.7 in
November 56°F (13°C) 4.8 in
December 50°F (10°C) 5.7 in Coldest

Belvedere has a seasonal temperature swing of 17°F / from 50°F in December to 67°F in August. Total annual precipitation is 33.9 inches, with January being the wettest month (7.2") and July the driest (0.1").

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