Santa Barbara Average Rainfall by Month

This page shows the average precipitation in each month of the year in Santa Barbara, California. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Santa Barbara?
In Santa Barbara, January has the greatest precipitation of any month. On average, Santa Barbara gets 3.9 inches of precipitation in January.
However, February is the month with the greatest chance of precipitation. 24.7% of days in February will have at least some rain.
What's the Driest Month in Santa Barbara?
In Santa Barbara, August has the least precipitation of any month. On average, Santa Barbara gets 0.014 inches of precipitation in August.
August is also the month where rain is least common. Only 1.5% of days in August will have measurable rain.
Month Precipitation % Chance
January 3.88 in 20.2
February 3.38 in 24.7
March 3.10 in 19.6
April 0.92 in 11.1
May 0.44 in 6.5
June 0.12 in 3.1
July 0.03 in 1.8
August 0.01 in 1.5
September 0.05 in 4.5
October 0.71 in 7.5
November 1.18 in 10.3
December 2.66 in 19.1
Year 15.71 in 10.5
Weather Station Details
Years Station Coordinates
1942–2024 Santa Barbara Municipal Airport location
1893–1941 Santa Barbara location
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