September weather in Colonial Beach, VA
The average temperature in Colonial Beach in September is 68.7°F (58.4°F–79.0°F). Average precipitation: 4.66 inches.
September is a fall month in Colonial Beach, and is warmer than the annual average of 56.6°F. Daily temperatures swing about 20.6°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
79.0°F
Avg Low
58.4°F
Precipitation
4.66 in
Daylight
12h 14m
September records in Colonial Beach
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (1991) | 51.1°F (1968) | 1.45 in (2020) |
| September 2 | 99.0°F (1980) | 44.1°F (1967) | 5.80 in (2006) |
| September 3 | 100.0°F (1980) | 43.0°F (1967) | 1.83 in (2015) |
| September 4 | 97.0°F (1966) | 48.9°F (1965) | 1.88 in (1974) |
| September 5 | 93.9°F (2023) | 44.1°F (1997) | 1.90 in (2006) |
| September 6 | 95.0°F (1983) | 48.0°F (1972) | 3.55 in (1979) |
| September 7 | 99.0°F (1983) | 42.1°F (1988) | 2.74 in (1974) |
| September 8 | 97.0°F (1983) | 43.0°F (1988) | 3.75 in (2008) |
| September 9 | 93.0°F (1985) | 41.0°F (1986) | 1.87 in (2018) |
| September 10 | 93.9°F (1985) | 46.9°F (1981) | 0.87 in (2018) |
| September 11 | 97.0°F (1983) | 43.0°F (1976) | 1.23 in (1970) |
| September 12 | 99.0°F (1983) | 37.9°F (1967) | 4.54 in (1960) |
| September 13 | 96.1°F (1983) | 44.1°F (1967) | 3.19 in (1989) |
| September 14 | 93.0°F (1998) | 39.0°F (1975) | 2.00 in (2003) |
| September 15 | 95.0°F (1980) | 39.0°F (1985) | 1.84 in (2000) |
| September 16 | 96.1°F (1998) | 42.1°F (1985) | 4.65 in (1999) |
| September 17 | 96.1°F (1991) | 37.9°F (1986) | 2.01 in (1965) |
| September 18 | 98.1°F (1991) | 35.1°F (1990) | 1.91 in (2004) |
| September 19 | 93.9°F (1970) | 41.0°F (1959) | 4.75 in (2003) |
| September 20 | 91.9°F (1978) | 39.0°F (1959) | 2.38 in (1966) |
| September 21 | 91.0°F (1983) | 36.0°F (1962) | 2.30 in (1966) |
| September 22 | 93.0°F (1980) | 35.1°F (1962) | 2.09 in (1979) |
| September 23 | 95.0°F (1970) | 36.0°F (1983) | 2.48 in (2003) |
| September 24 | 95.0°F (1970) | 30.9°F (1963) | 3.18 in (2011) |
| September 25 | 91.9°F (1970) | 30.9°F (1963) | 1.45 in (1991) |
| September 26 | 93.0°F (1970) | 39.0°F (1964) | 3.02 in (1975) |
| September 27 | 93.9°F (1986) | 39.0°F (1991) | 3.10 in (1985) |
| September 28 | 93.9°F (1998) | 36.0°F (1989) | 1.45 in (2009) |
| September 29 | 88.0°F (1998) | 37.0°F (1978) | 2.29 in (2016) |
| September 30 | 87.1°F (1973) | 34.0°F (1992) | 4.90 in (2010) |