September weather in Del Mar, CA
The average temperature in Del Mar in September is 72.3°F (63.2°F–81.5°F). Average precipitation: 0.14 inches.
September is a fall month in Del Mar, and is warmer than the annual average of 64.2°F. Daily temperatures swing about 18.3°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 12m. For travel, September is a comfortable month to visit.
Avg High
81.5°F
Avg Low
63.2°F
Precipitation
0.14 in
Daylight
12h 12m
September records in Del Mar
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 107.1°F (1955) | 55.0°F (2010) | 0.03 in (2010) |
| September 2 | 108.0°F (1955) | 57.0°F (1951) | 0.00 in (1947) |
| September 3 | 107.1°F (1988) | 51.1°F (2012) | 0.44 in (1976) |
| September 4 | 108.0°F (1988) | 55.0°F (1970) | 1.04 in (1963) |
| September 5 | 107.1°F (1988) | 55.9°F (1970) | 0.59 in (1978) |
| September 6 | 100.9°F (1984) | 53.1°F (1970) | 0.18 in (1978) |
| September 7 | 97.0°F (1949) | 55.9°F (1987) | 0.07 in (2002) |
| September 8 | 108.0°F (1984) | 55.0°F (1951) | 0.03 in (1979) |
| September 9 | 104.0°F (2015) | 53.1°F (2010) | 0.37 in (2022) |
| September 10 | 99.0°F (1956) | 52.0°F (2010) | 1.10 in (1976) |
| September 11 | 100.0°F (1983) | 53.1°F (1991) | 0.05 in (1976) |
| September 12 | 96.1°F (1960) | 52.0°F (1952) | 0.01 in (1975) |
| September 13 | 102.9°F (1971) | 53.1°F (1952) | 0.00 in (1947) |
| September 14 | 109.0°F (2012) | 54.0°F (1966) | 0.00 in (1947) |
| September 15 | 106.0°F (1979) | 48.9°F (1952) | 1.01 in (2015) |
| September 16 | 102.0°F (2014) | 52.0°F (1952) | 0.07 in (1982) |
| September 17 | 98.1°F (1979) | 54.0°F (1993) | 0.50 in (1963) |
| September 18 | 97.0°F (1979) | 52.0°F (1993) | 0.45 in (1963) |
| September 19 | 100.0°F (1979) | 50.0°F (1978) | 0.10 in (1963) |
| September 20 | 99.0°F (2015) | 50.0°F (1954) | 0.21 in (2016) |
| September 21 | 91.9°F (1989) | 48.9°F (1954) | 0.60 in (1947) |
| September 22 | 96.1°F (1978) | 52.0°F (1953) | 0.40 in (1987) |
| September 23 | 104.0°F (2009) | 51.1°F (2010) | 0.06 in (1986) |
| September 24 | 105.1°F (1978) | 52.0°F (1970) | 0.36 in (1964) |
| September 25 | 104.0°F (1978) | 53.1°F (1958) | 1.22 in (1997) |
| September 26 | 111.0°F (1963) | 50.0°F (1948) | 0.35 in (1982) |
| September 27 | 111.0°F (2010) | 48.9°F (2013) | 0.05 in (1951) |
| September 28 | 107.1°F (1963) | 48.9°F (1971) | 0.15 in (1951) |
| September 29 | 96.1°F (1963) | 48.9°F (2001) | 0.24 in (1983) |
| September 30 | 95.0°F (2008) | 50.0°F (2013) | 0.02 in (2023) |