September weather in Long Beach, WA
The average temperature in Long Beach in September is 56.9°F (47.9°F–66.0°F). Average precipitation: 2.66 inches.
September is a fall month in Long Beach, and is warmer than the annual average of 49.8°F. Daily temperatures swing about 18.1°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
66.0°F
Avg Low
47.9°F
Precipitation
2.66 in
Daylight
12h 19m
September records in Long Beach
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 82.9°F (1972) | 36.0°F (1973) | 1.12 in (2010) |
| September 2 | 88.0°F (1972) | 37.0°F (1984) | 1.17 in (1970) |
| September 3 | 91.9°F (1972) | 37.0°F (1984) | 0.76 in (1977) |
| September 4 | 82.9°F (1991) | 39.9°F (1969) | 0.90 in (1971) |
| September 5 | 91.0°F (2017) | 39.0°F (1969) | 1.00 in (1984) |
| September 6 | 91.9°F (1975) | 37.0°F (1992) | 1.84 in (1984) |
| September 7 | 86.0°F (1981) | 37.9°F (1992) | 0.69 in (1973) |
| September 8 | 86.0°F (2012) | 39.0°F (1973) | 0.82 in (1979) |
| September 9 | 84.9°F (1997) | 39.9°F (1983) | 2.57 in (1978) |
| September 10 | 84.0°F (1980) | 39.9°F (2006) | 0.96 in (1978) |
| September 11 | 87.1°F (1973) | 37.0°F (1985) | 0.95 in (1985) |
| September 12 | 91.0°F (1975) | 30.9°F (1970) | 0.56 in (1985) |
| September 13 | 91.0°F (1975) | 37.0°F (1970) | 0.72 in (1997) |
| September 14 | 89.1°F (1979) | 35.1°F (1969) | 1.31 in (1976) |
| September 15 | 82.9°F (1967) | 35.1°F (2017) | 0.82 in (2004) |
| September 16 | 84.0°F (1967) | 37.0°F (1992) | 2.24 in (1969) |
| September 17 | 86.0°F (1994) | 37.0°F (1992) | 2.74 in (1997) |
| September 18 | 87.1°F (1991) | 36.0°F (1985) | 1.56 in (1969) |
| September 19 | 82.9°F (1991) | 32.0°F (1983) | 1.42 in (2017) |
| September 20 | 88.0°F (1974) | 35.1°F (1983) | 0.85 in (2017) |
| September 21 | 84.0°F (2014) | 30.9°F (2017) | 2.33 in (1972) |
| September 22 | 88.0°F (1974) | 28.9°F (2017) | 1.14 in (1981) |
| September 23 | 91.0°F (2009) | 33.1°F (1984) | 1.77 in (1978) |
| September 24 | 87.1°F (1974) | 34.0°F (1984) | 1.50 in (2014) |
| September 25 | 91.9°F (1974) | 33.1°F (1972) | 1.13 in (1986) |
| September 26 | 86.0°F (1967) | 37.0°F (1972) | 1.45 in (1982) |
| September 27 | 82.9°F (1970) | 28.9°F (1972) | 1.89 in (1971) |
| September 28 | 91.0°F (2003) | 30.0°F (1972) | 1.56 in (1981) |
| September 29 | 87.1°F (1989) | 30.9°F (1983) | 1.04 in (1977) |
| September 30 | 84.9°F (1987) | 32.0°F (1985) | 1.30 in (1967) |