September weather in Monterey, CA
The average temperature in Monterey in September is 62.1°F (53.4°F–70.9°F). Average precipitation: 0.09 inches.
September is a fall month in Monterey, and is warmer than the annual average of 56.8°F. Daily temperatures swing about 17.5°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 12h 13m. For travel, September is one of the best months of the year to visit.
Avg High
70.9°F
Avg Low
53.4°F
Precipitation
0.09 in
Daylight
12h 13m
September records in Monterey
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (1952) | 46.9°F (1957) | 0.03 in (1953) |
| September 2 | 104.0°F (2017) | 46.0°F (1950) | 0.32 in (2000) |
| September 3 | 95.0°F (1961) | 46.0°F (2012) | 0.04 in (1912) |
| September 4 | 98.1°F (1961) | 48.0°F (1964) | 0.34 in (1907) |
| September 5 | 93.9°F (2004) | 48.0°F (1981) | 0.23 in (1978) |
| September 6 | 93.9°F (2004) | 46.0°F (1942) | 0.07 in (1969) |
| September 7 | 91.9°F (1957) | 46.0°F (2001) | 0.26 in (1958) |
| September 8 | 95.0°F (2015) | 46.9°F (1960) | 0.13 in (1985) |
| September 9 | 91.9°F (1984) | 45.0°F (1955) | 0.19 in (1999) |
| September 10 | 89.1°F (1979) | 44.1°F (1942) | 0.06 in (1952) |
| September 11 | 97.0°F (1979) | 46.9°F (1952) | 0.02 in (1954) |
| September 12 | 98.1°F (1983) | 44.1°F (1942) | 0.02 in (1975) |
| September 13 | 93.9°F (1971) | 43.0°F (1942) | 0.03 in (1996) |
| September 14 | 100.9°F (1971) | 44.1°F (1970) | 0.27 in (2009) |
| September 15 | 91.9°F (1958) | 46.0°F (1970) | 0.06 in (1982) |
| September 16 | 89.1°F (1968) | 46.9°F (1962) | 0.61 in (1989) |
| September 17 | 91.0°F (2000) | 46.9°F (1962) | 0.04 in (1986) |
| September 18 | 87.1°F (1984) | 46.0°F (1955) | 1.59 in (1959) |
| September 19 | 90.0°F (1967) | 44.1°F (1955) | 1.52 in (1959) |
| September 20 | 91.9°F (1967) | 46.9°F (1968) | 0.25 in (1966) |
| September 21 | 89.1°F (1950) | 46.0°F (1968) | 0.28 in (1916) |
| September 22 | 95.0°F (1949) | 48.0°F (1942) | 0.40 in (2007) |
| September 23 | 97.0°F (1978) | 46.0°F (2012) | 0.16 in (1982) |
| September 24 | 99.0°F (1978) | 45.0°F (1993) | 0.76 in (1982) |
| September 25 | 95.0°F (1954) | 41.0°F (1942) | 0.47 in (1982) |
| September 26 | 99.0°F (2016) | 44.1°F (1942) | 0.50 in (1909) |
| September 27 | 100.9°F (1958) | 46.9°F (1942) | 0.57 in (1986) |
| September 28 | 97.0°F (1970) | 46.0°F (1942) | 0.29 in (1976) |
| September 29 | 98.1°F (1978) | 46.9°F (1954) | 0.65 in (1916) |
| September 30 | 93.0°F (2001) | 43.0°F (1950) | 1.09 in (1983) |