September weather in Watsonville, CA
The average temperature in Watsonville in September is 63.5°F (52.8°F–74.2°F). Average precipitation: 0.06 inches.
September is a fall month in Watsonville, and is warmer than the annual average of 57.6°F. Daily temperatures swing about 21.4°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
74.2°F
Avg Low
52.8°F
Precipitation
0.06 in
Daylight
12h 13m
September records in Watsonville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.0°F (1952) | 39.9°F (1920) | 0.11 in (1964) |
| September 2 | 105.1°F (2017) | 41.0°F (1914) | 0.07 in (2000) |
| September 3 | 109.9°F (2017) | 39.0°F (1912) | 0.02 in (1927) |
| September 4 | 93.0°F (1961) | 35.1°F (1914) | 0.01 in (1953) |
| September 5 | 97.0°F (1961) | 37.0°F (1912) | 0.01 in (2017) |
| September 6 | 100.0°F (2022) | 37.0°F (1911) | 0.61 in (1912) |
| September 7 | 107.1°F (2020) | 37.0°F (1911) | 0.13 in (1958) |
| September 8 | 100.0°F (1944) | 35.1°F (1914) | 0.08 in (1958) |
| September 9 | 100.0°F (2015) | 35.1°F (1914) | 0.20 in (1985) |
| September 10 | 96.1°F (1914) | 39.0°F (1911) | 0.42 in (1978) |
| September 11 | 97.0°F (1979) | 37.0°F (1911) | 1.36 in (1918) |
| September 12 | 104.0°F (1983) | 37.9°F (1912) | 3.36 in (1918) |
| September 13 | 102.9°F (1983) | 34.0°F (1910) | 0.95 in (1918) |
| September 14 | 100.0°F (1971) | 39.9°F (1914) | 0.11 in (1910) |
| September 15 | 105.1°F (1971) | 39.0°F (1927) | 0.10 in (1910) |
| September 16 | 105.1°F (1913) | 37.0°F (1912) | 0.09 in (1946) |
| September 17 | 104.0°F (1913) | 35.1°F (1911) | 0.32 in (1989) |
| September 18 | 102.0°F (1913) | 37.0°F (1911) | 0.37 in (1921) |
| September 19 | 97.0°F (1946) | 37.0°F (1915) | 5.90 in (1959) |
| September 20 | 97.0°F (1943) | 35.1°F (1915) | 0.66 in (1977) |
| September 21 | 97.0°F (2015) | 33.1°F (1915) | 0.98 in (1916) |
| September 22 | 95.0°F (1943) | 33.1°F (1915) | 0.50 in (1923) |
| September 23 | 102.0°F (1949) | 37.0°F (1915) | 0.36 in (2007) |
| September 24 | 99.0°F (1978) | 35.1°F (1915) | 0.74 in (1982) |
| September 25 | 99.0°F (1975) | 37.9°F (1924) | 0.25 in (1986) |
| September 26 | 99.0°F (2016) | 35.1°F (1915) | 0.49 in (1982) |
| September 27 | 107.1°F (2016) | 32.0°F (1915) | 0.25 in (1986) |
| September 28 | 102.9°F (2010) | 35.1°F (1915) | 0.08 in (1957) |
| September 29 | 99.0°F (2010) | 34.0°F (1915) | 0.68 in (1976) |
| September 30 | 100.0°F (1978) | 33.1°F (1915) | 1.13 in (1983) |