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Santa Barbara September Weather

Averages and records for weather in Santa Barbara, California in the month of September.

Typical Santa Barbara September Weather 1991–2020
Average daily high	75.4 °F
Average daily low	55.9 °F
Average monthly precipitation	0.1 inches
Daily chance of precipitation	4.5%

Santa Barbara September Weather Records 1893–2024
Highest temperature	108 °F	September 17, 1913
Lowest temperature	42 °F	September 30, 1950
Highest daily low	81 °F	September 18, 1979
Lowest daily high	60 °F	September 8, 1914
Hottest average high temperature	86.0 °F	1939
Coldest average high temperature	69.8 °F	1901
Most daily precipitation	3.0 inches	September 30, 1983
Most monthly precipitation	4.1 inches	1976

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
September 1	75.6	57.1	99	49
September 2	75.6	57.0	97	47
September 3	75.6	56.9	100	46
September 4	75.6	56.8	102	49
September 5	75.5	56.8	95	46
September 6	75.4	56.8	97	46
September 7	75.4	56.7	93	47
September 8	75.4	56.7	95	46
September 9	75.4	56.6	95	46
September 10	75.4	56.5	94	44
September 11	75.4	56.4	91	45
September 12	75.4	56.3	90	47
September 13	75.3	56.2	93	46
September 14	75.3	56.1	97	46
September 15	75.3	56.0	100	45
September 16	75.4	55.8	103	46
September 17	75.4	55.6	108	46
September 18	75.4	55.5	104	45
September 19	75.3	55.3	102	45
September 20	75.1	55.2	104	44
September 21	75.0	54.9	104	44
September 22	75.0	54.8	103	44
September 23	75.0	54.5	102	45
September 24	75.0	54.4	100	45
September 25	75.0	54.2	98	46
September 26	75.0	54.1	103	43
September 27	74.9	53.9	101	43
September 28	74.9	53.7	99	45
September 29	74.9	53.6	98	44
September 30	74.8	53.5	94	42

Weather Station Details

Years	Station	Coordinates
1942–2024	Santa Barbara Municipal Airport	location
1893–1941	Santa Barbara	location