September weather in Colma, CA
The average temperature in Colma in September is 60.1°F (55.3°F–65.0°F). Average precipitation: 0.11 inches.
September is a fall month in Colma, and is warmer than the annual average of 56.2°F. Daily temperatures swing about 9.7°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 14m. For travel, September is one of the best months of the year to visit.
Avg High
65.0°F
Avg Low
55.3°F
Precipitation
0.11 in
Daylight
12h 14m
September records in Colma
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.0°F (2017) | 41.0°F (2018) | 0.14 in (2000) |
| September 2 | 91.0°F (2017) | 39.9°F (2021) | 0.10 in (2000) |
| September 3 | 93.0°F (1961) | 39.9°F (2021) | 0.00 in (1948) |
| September 4 | 88.0°F (1961) | 39.9°F (2018) | 0.00 in (1948) |
| September 5 | 73.9°F (1983) | 39.9°F (2018) | 0.00 in (1948) |
| September 6 | 73.0°F (2017) | 39.9°F (2021) | 0.07 in (1969) |
| September 7 | 82.0°F (1976) | 41.0°F (2018) | 0.00 in (1948) |
| September 8 | 80.1°F (1976) | 32.0°F (1991) | 0.00 in (1948) |
| September 9 | 81.0°F (1976) | 36.0°F (2013) | 0.03 in (1999) |
| September 10 | 91.0°F (1984) | 43.0°F (2021) | 0.00 in (1948) |
| September 11 | 96.1°F (1979) | 42.1°F (2021) | 0.34 in (2017) |
| September 12 | 81.0°F (1979) | 39.9°F (2018) | 0.35 in (1963) |
| September 13 | 84.9°F (2019) | 39.9°F (2021) | 0.36 in (2009) |
| September 14 | 84.0°F (2019) | 42.1°F (2021) | 0.06 in (1997) |
| September 15 | 82.9°F (1971) | 45.0°F (1970) | 0.02 in (1961) |
| September 16 | 77.0°F (1968) | 39.0°F (2021) | 0.61 in (1989) |
| September 17 | 81.0°F (2020) | 39.0°F (2021) | 0.31 in (1989) |
| September 18 | 81.0°F (2020) | 37.9°F (2021) | 1.98 in (1959) |
| September 19 | 84.9°F (2002) | 30.9°F (2009) | 0.26 in (1977) |
| September 20 | 90.0°F (1983) | 30.9°F (2009) | 0.21 in (1973) |
| September 21 | 82.0°F (1964) | 30.9°F (2009) | 0.55 in (2013) |
| September 22 | 90.0°F (1964) | 30.9°F (2009) | 0.06 in (1973) |
| September 23 | 86.0°F (1970) | 41.0°F (2010) | 0.10 in (1994) |
| September 24 | 93.0°F (1978) | 41.0°F (2010) | 0.40 in (1982) |
| September 25 | 95.0°F (2019) | 42.1°F (2010) | 0.36 in (2014) |
| September 26 | 95.0°F (2019) | 48.0°F (1984) | 0.58 in (1972) |
| September 27 | 91.9°F (2016) | 43.0°F (1983) | 0.14 in (1989) |
| September 28 | 96.1°F (1966) | 46.0°F (2010) | 0.17 in (1977) |
| September 29 | 84.0°F (1997) | 41.0°F (2020) | 0.19 in (1971) |
| September 30 | 91.9°F (2001) | 39.9°F (2012) | 0.28 in (1983) |