September weather in Santa Barbara, CA
The average temperature in Santa Barbara in September is 68.6°F (59.5°F–77.7°F). Average precipitation: 0.05 inches.
September is a fall month in Santa Barbara, and is warmer than the annual average of 62.5°F. Daily temperatures swing about 18.2°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 12m. For travel, September is one of the best months of the year to visit.
Avg High
77.7°F
Avg Low
59.5°F
Precipitation
0.05 in
Daylight
12h 12m
September records in Santa Barbara
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.9°F (1955) | 48.9°F (1907) | 0.15 in (1913) |
| September 2 | 102.9°F (1955) | 46.9°F (1942) | 0.06 in (1945) |
| September 3 | 95.0°F (2017) | 44.1°F (2004) | 0.33 in (2017) |
| September 4 | 100.9°F (2022) | 48.9°F (1921) | 0.40 in (1963) |
| September 5 | 105.1°F (2022) | 46.0°F (1933) | 0.36 in (1978) |
| September 6 | 93.0°F (2004) | 46.0°F (1933) | 0.80 in (1978) |
| September 7 | 95.0°F (1944) | 48.0°F (1914) | 0.20 in (1958) |
| September 8 | 97.0°F (1944) | 46.0°F (1946) | 0.04 in (1950) |
| September 9 | 97.0°F (1984) | 46.0°F (1920) | 0.02 in (1991) |
| September 10 | 97.0°F (2022) | 44.1°F (1933) | 0.18 in (2022) |
| September 11 | 95.0°F (1983) | 42.1°F (2006) | 1.90 in (1976) |
| September 12 | 91.0°F (1959) | 37.9°F (2006) | 0.01 in (1984) |
| September 13 | 98.1°F (1971) | 46.0°F (1915) | 0.25 in (1918) |
| September 14 | 97.0°F (1909) | 46.0°F (1915) | 0.26 in (1918) |
| September 15 | 100.0°F (1909) | 46.9°F (1921) | 2.36 in (1910) |
| September 16 | 102.9°F (1913) | 48.0°F (1911) | 0.19 in (1910) |
| September 17 | 108.0°F (1913) | 46.0°F (1908) | 0.33 in (1950) |
| September 18 | 102.0°F (1939) | 45.0°F (1947) | 0.16 in (1963) |
| September 19 | 102.0°F (1912) | 44.1°F (1947) | 0.31 in (1963) |
| September 20 | 104.0°F (1939) | 45.0°F (1909) | 0.02 in (1988) |
| September 21 | 104.0°F (1939) | 43.0°F (1944) | 0.14 in (1999) |
| September 22 | 102.9°F (1939) | 42.1°F (1993) | 0.65 in (1908) |
| September 23 | 102.0°F (1939) | 42.1°F (1993) | 0.07 in (1958) |
| September 24 | 102.0°F (1978) | 41.0°F (1993) | 1.45 in (1986) |
| September 25 | 105.1°F (1978) | 42.1°F (1993) | 1.05 in (1898) |
| September 26 | 105.1°F (1963) | 37.9°F (1948) | 2.00 in (1898) |
| September 27 | 105.1°F (2010) | 35.1°F (1993) | 0.39 in (1918) |
| September 28 | 100.9°F (1963) | 34.0°F (1993) | 0.07 in (2002) |
| September 29 | 98.1°F (1924) | 34.0°F (1993) | 1.87 in (1976) |
| September 30 | 93.9°F (1906) | 33.1°F (1993) | 1.91 in (1916) |