September weather in Poway, CA
The average temperature in Poway in September is °F (°F–°F). Average precipitation: 0.13 inches.
September is a fall month in Poway, and is cooler than the annual average of 0°F. Expect about 1 days with precipitation. Daylight averages about 12h 12m.
Avg High
°F
Avg Low
°F
Precipitation
0.13 in
Daylight
12h 12m
September records in Poway
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (2012) | 48.0°F (1907) | 0.00 in (1893) |
| September 2 | 91.0°F (2012) | 55.9°F (1904) | 0.00 in (1893) |
| September 3 | 96.1°F (2013) | 52.0°F (1907) | 0.13 in (1998) |
| September 4 | 100.0°F (2013) | 57.9°F (2011) | 0.28 in (1963) |
| September 5 | 99.0°F (2013) | 57.9°F (1981) | 0.39 in (1963) |
| September 6 | 102.9°F (2011) | 43.0°F (1907) | 0.59 in (1978) |
| September 7 | 100.0°F (2014) | 48.0°F (1907) | 0.02 in (1972) |
| September 8 | 100.0°F (2011) | 46.9°F (1907) | 0.05 in (1972) |
| September 9 | 102.9°F (2015) | 54.0°F (1906) | 0.15 in (2022) |
| September 10 | 96.1°F (1908) | 55.9°F (1908) | 1.13 in (1976) |
| September 11 | 96.1°F (2015) | 55.9°F (1901) | 0.51 in (1976) |
| September 12 | 93.9°F (1908) | 52.0°F (1906) | 0.00 in (1893) |
| September 13 | 99.0°F (2014) | 48.9°F (1901) | 0.05 in (1987) |
| September 14 | 102.0°F (2012) | 46.9°F (1905) | 0.02 in (1969) |
| September 15 | 102.0°F (2012) | 48.0°F (1903) | 0.44 in (2015) |
| September 16 | 106.0°F (2014) | 48.0°F (1903) | 0.12 in (1982) |
| September 17 | 98.1°F (2014) | 39.0°F (1908) | 0.14 in (1963) |
| September 18 | 96.1°F (1906) | 46.9°F (1906) | 0.66 in (1963) |
| September 19 | 95.0°F (1906) | 39.0°F (1907) | 0.63 in (1963) |
| September 20 | 100.9°F (2015) | 46.0°F (1905) | 0.22 in (2016) |
| September 21 | 90.0°F (1905) | 50.0°F (1906) | 0.25 in (2016) |
| September 22 | 93.9°F (2012) | 52.0°F (1903) | 0.12 in (1905) |
| September 23 | 99.0°F (2012) | 50.0°F (1981) | 0.25 in (1982) |
| September 24 | 93.0°F (2014) | 48.9°F (1901) | 0.18 in (1958) |
| September 25 | 99.0°F (2016) | 43.0°F (1901) | 1.29 in (1997) |
| September 26 | 99.0°F (2016) | 37.9°F (1907) | 0.20 in (1997) |
| September 27 | 95.0°F (2016) | 37.9°F (1907) | 0.05 in (1898) |
| September 28 | 95.0°F (1904) | 39.0°F (1908) | 0.20 in (1905) |
| September 29 | 99.0°F (1906) | 42.1°F (1908) | 0.00 in (1893) |
| September 30 | 107.1°F (1906) | 39.9°F (1908) | 0.24 in (1983) |