Weather in Boston in September
The weather in Boston in September is pleasant during the day and a little cold sometimes, especially at night. Temperatures range from 14 to 24 degrees and there are 12 days of rain on average. Please prepare accordingly with an umbrella and warm clothing.
Avg Temp
14° - 24°
Avg Rainy Days
12
Avg Dry Days
18
Avg Snow Days
0
Weather Facts - Boston in September
* The warmest temperature recorded in in September is 35°C
* The coldest temperature recorded in Boston in September is 3°C
* The average rainfall in Boston in September is 94 mm