What is the highest temperature ever recorded in San Diego, CA?

The record high temperature in San Diego, CA is 108°F, recorded on September 4, 1988.

What is the lowest temperature ever recorded in San Diego, CA?

The record low temperature in San Diego, CA is 28°F, recorded on December 25, 1987.

Historical Weather in San Diego, CA

Name: San Diego, CA Temperature Records
Creator: NOAA

See 55+ years of weather history for any date in San Diego going back to 1970.

Part of California weather history · California temperature records

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Today in San Diego Weather HistorySee records, averages, and 55+ years of data for today's date

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Monthly Climate Averages

Historical temperature and precipitation averages for San Diego, CA, based on 55+ years of weather data.

Warmest MonthSeptemberAvg High: 76°F / Low: 66°F

Coldest MonthDecemberAvg High: 65°F / Low: 49°F

Jan

65°/ 49°

💧 7.0"

Feb

65°/ 50°

💧 7.3"

Mar

66°/ 53°

💧 6.5"

Apr

68°/ 56°

💧 4.2"

May

69°/ 59°

💧 2.6"

Jun

71°/ 62°

💧 1.4"

Jul

75°/ 66°

💧 3.1"

Aug

76°/ 67°

💧 5.2"

Sep

76°/ 66°

💧 3.4"

Oct

73°/ 61°

💧 4.5"

Nov

69°/ 54°

💧 5.6"

Dec

65°/ 49°

💧 6.2"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

San Diego, CA Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

Avg high Avg low

San Diego, CA Monthly Precipitation

Average rainfall per month, in inches.

Rain (in)

San Diego, CA Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

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Hotter

20°40°60°80°100°

Best Time to Visit San Diego, CA

Most pleasant months in San Diego, CA: June.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

San Diego Temperature Records

Record High: The hottest temperature ever recorded in San Diego, CA is 108°F, set on September 4, 1988.
Record Low: The coldest temperature ever recorded in San Diego, CA is 28°F, set on December 25, 1987.
Data Coverage: Based on 57 years of data from NOAA weather station: SAN DIEGO INTL AP.

All-Time Record High

108°F

September 4, 1988

All-Time Record Low

28°F

December 25, 1987

Monthly Temperature Records in San Diego

Month	Record High	Record Low
January	90°F(2003)	29°F(1971)
February	93°F(2022)	29°F(1990)
March	95°F(1988)	32°F(1971)
April	102°F(1989)	37°F(2003)
May	102°F(2004)	43°F(1975)
June	101°F(1979)	43°F(1984)
July	106°F(2006)	53°F(1984)
August	105°F(2009)	55°F(1975)
September	108°F(1988)	43°F(1999)
October	106°F(1987)	36°F(1971)
November	100°F(2010)	34°F(2004)
December	88°F(2013)	28°F(1987)