September weather in Weymouth Town, MA
The average temperature in Weymouth Town in September is 64.5°F (55.3°F–73.8°F). Average precipitation: 3.90 inches.
September is a fall month in Weymouth Town, and is warmer than the annual average of 51.3°F. Daily temperatures swing about 18.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
73.8°F
Avg Low
55.3°F
Precipitation
3.90 in
Daylight
12h 16m
September records in Weymouth Town
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2010) | 41.0°F (1975) | 0.56 in (1987) |
| September 2 | 95.0°F (2010) | 41.0°F (1991) | 3.74 in (2021) |
| September 3 | 97.0°F (2018) | 41.0°F (1970) | 4.70 in (1972) |
| September 4 | 90.0°F (1971) | 42.1°F (1987) | 1.10 in (1966) |
| September 5 | 93.0°F (2018) | 39.9°F (1989) | 2.20 in (1966) |
| September 6 | 97.0°F (2018) | 41.0°F (1965) | 1.39 in (2008) |
| September 7 | 93.9°F (2007) | 37.0°F (1962) | 1.69 in (1974) |
| September 8 | 97.0°F (2015) | 36.0°F (1962) | 1.74 in (2011) |
| September 9 | 93.0°F (2015) | 37.0°F (1990) | 1.91 in (1969) |
| September 10 | 89.1°F (1961) | 39.0°F (2003) | 1.88 in (2023) |
| September 11 | 96.1°F (2013) | 39.0°F (1963) | 1.54 in (2007) |
| September 12 | 93.0°F (1961) | 37.0°F (1967) | 3.84 in (2009) |
| September 13 | 87.1°F (2001) | 39.9°F (1967) | 1.76 in (2015) |
| September 14 | 90.0°F (2016) | 36.0°F (1978) | 1.04 in (1981) |
| September 15 | 89.1°F (1993) | 35.1°F (1963) | 1.77 in (1989) |
| September 16 | 88.0°F (1991) | 36.0°F (1964) | 3.23 in (1999) |
| September 17 | 89.1°F (2015) | 32.0°F (1960) | 2.24 in (1995) |
| September 18 | 87.1°F (2015) | 35.1°F (1961) | 3.35 in (1996) |
| September 19 | 87.1°F (1983) | 36.0°F (1990) | 1.26 in (2012) |
| September 20 | 90.0°F (1983) | 30.0°F (1964) | 3.16 in (1960) |
| September 21 | 88.0°F (1965) | 33.1°F (1969) | 4.10 in (1961) |
| September 22 | 90.0°F (1965) | 28.9°F (1962) | 2.53 in (2001) |
| September 23 | 90.0°F (2019) | 33.1°F (1969) | 2.34 in (1994) |
| September 24 | 84.0°F (2017) | 34.0°F (1979) | 2.05 in (1975) |
| September 25 | 88.0°F (2007) | 30.9°F (1963) | 2.29 in (1961) |
| September 26 | 93.0°F (2007) | 34.0°F (1967) | 1.70 in (2008) |
| September 27 | 88.0°F (2017) | 32.0°F (1966) | 1.55 in (1962) |
| September 28 | 89.1°F (2014) | 32.0°F (1965) | 1.90 in (2004) |
| September 29 | 82.0°F (2010) | 33.1°F (1991) | 2.45 in (1967) |
| September 30 | 84.9°F (1986) | 35.1°F (1961) | 2.80 in (2015) |