Weather in South Boston in September
In an average September, South Boston sees a daily high around 72°F and a low around 59°F, based on 1980–2026 of local climate records.
| Average high | 72°F |
|---|---|
| Typical high range | 64°F to 80°F |
| Average low | 59°F |
| Typical low range | 51°F to 66°F |
| Average daily precipitation | 0.10 in |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
92°F
2018-09-06
Lowest
52°F
2000-09-29
Low
Highest
75°F
2018-09-04
Lowest
40°F
2000-09-29
Feels-like
Highest
118°F
2018-09-06
Lowest
33°F
1991-09-30
Humidity
Highest
21.3 g/m³
2018-09-06
Lowest
4.4 g/m³
1981-09-30
Wind
Highest
38 mph
1985-09-27
Lowest
4 mph
2017-09-16
Gust
Highest
78 mph
1985-09-27
Lowest
9 mph
2011-09-26
Precip
Wettest
8.75 in
2008
Driest
0.93 in
1980
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