September weather in Santa Cruz, CA
The average temperature in Santa Cruz in September is 64.8°F (52.9°F–76.7°F). Average precipitation: 0.10 inches.
September is a fall month in Santa Cruz, and is warmer than the annual average of 58.7°F. Daily temperatures swing about 23.8°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 13m. For travel, September is one of the best months of the year to visit.
Avg High
76.7°F
Avg Low
52.9°F
Precipitation
0.10 in
Daylight
12h 13m
September records in Santa Cruz
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (2017) | 39.9°F (1910) | 0.20 in (1964) |
| September 2 | 107.1°F (2017) | 39.0°F (1897) | 0.10 in (1907) |
| September 3 | 109.9°F (2017) | 42.1°F (1898) | 0.30 in (1907) |
| September 4 | 98.1°F (1961) | 41.0°F (1914) | 0.25 in (1929) |
| September 5 | 93.9°F (1941) | 42.1°F (1936) | 0.10 in (1925) |
| September 6 | 104.0°F (2020) | 39.9°F (1899) | 0.65 in (1912) |
| September 7 | 108.0°F (1904) | 41.0°F (1897) | 0.26 in (1958) |
| September 8 | 107.1°F (1904) | 39.9°F (1914) | 0.07 in (1942) |
| September 9 | 100.9°F (1944) | 39.9°F (1964) | 0.18 in (1999) |
| September 10 | 95.0°F (1914) | 37.0°F (1897) | 0.62 in (1978) |
| September 11 | 100.9°F (1898) | 39.9°F (1928) | 2.60 in (1918) |
| September 12 | 102.0°F (1971) | 41.0°F (1909) | 3.20 in (1918) |
| September 13 | 102.9°F (2019) | 30.0°F (1921) | 1.32 in (1939) |
| September 14 | 107.1°F (1971) | 37.9°F (1903) | 0.36 in (2009) |
| September 15 | 102.0°F (1913) | 37.9°F (1970) | 0.05 in (1906) |
| September 16 | 100.9°F (1913) | 39.0°F (1903) | 0.42 in (1989) |
| September 17 | 106.0°F (1913) | 39.0°F (1903) | 0.33 in (1950) |
| September 18 | 98.1°F (1906) | 39.9°F (1916) | 2.71 in (1959) |
| September 19 | 98.1°F (1906) | 39.9°F (1899) | 0.67 in (1977) |
| September 20 | 102.9°F (1939) | 39.0°F (1937) | 0.48 in (1977) |
| September 21 | 100.0°F (1928) | 39.0°F (1968) | 0.20 in (1916) |
| September 22 | 104.0°F (1939) | 39.0°F (1968) | 2.25 in (1904) |
| September 23 | 97.0°F (1939) | 37.9°F (1968) | 1.25 in (1904) |
| September 24 | 102.0°F (1975) | 39.0°F (1920) | 0.95 in (1986) |
| September 25 | 100.0°F (2010) | 37.0°F (1900) | 2.00 in (1898) |
| September 26 | 100.9°F (1970) | 36.0°F (1948) | 0.30 in (1909) |
| September 27 | 102.9°F (1970) | 35.1°F (1926) | 1.15 in (1972) |
| September 28 | 100.0°F (1917) | 35.1°F (1900) | 0.51 in (1976) |
| September 29 | 98.1°F (1917) | 36.0°F (1905) | 2.37 in (1894) |
| September 30 | 98.1°F (1978) | 37.0°F (1950) | 1.91 in (1983) |