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San Diego enjoys beautiful weather year round with an average daily temperature of 70.5ºF (21.7ºC). The weather is not uniform throughout San Diego as there is a wide variation in temperature within short distances due to the geography of the land. The U.S. Weather Bureau characterizes the San Diego climate as the most nearly perfect in America.

The weather can be described as Mediterranean: warm winters and cool summers. The typical San Diego weather forecast of “sunny and mild” is just one of the many reasons why people enjoy living here and why many more love to visit.

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San Diego Average Weather Conditions

Month High F Low F High C Low C Humidity Rain in Rain cm Sunshine
January 65° 48° 18.3° 8.9° 63% 2.11 5.33 72%
February 66° 50° 18.9° 10.0° 66% 1.43 3.61 72%
March 66° 52° 18.9° 11.1° 67% 1.60 4.04 70%
April 68° 55° 20.0° 12.8° 67% 0.78 1.97 67%
May 69° 58° 20.6° 14.4° 70% 0.24 0.61 59%
June 71° 61° 21.7° 16.1° 74% 0.06 0.15 58%
July 76° 65° 24.4° 18.3° 74% 0.01 0.03 68%
August 78° 67° 25.6° 19.4° 74% 0.11 0.28 70%
September 77° 65° 25.0° 18.3° 72% 0.19 0.48 69%
October 75° 60° 23.9° 15.6° 70% 0.33 0.83 68%
November 70° 54° 21.1° 12.2° 65% 1.10 2.78 75%
December 66° 49° 18.9° 9.4° 64% 1.36 3.44 73%
Average 71° 57° 21.7° 13.9° 69% 0.78 1.97 68%