Weather in September
Ocean temperature
In Mattapoisett Center, Massachusetts, in September, the average water temperature is 65.8°F (18.8°C).Note: Swimming in 65.8°F (18.8°C) is not pleasurable for most people. Breathing control grows increasingly challenging as the water temperature falls under 69.8°F (21°C).
Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:09 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:26 pm EDT.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is the water in September?
In Mattapoisett Center, in September, the average water temperature is 65.8°F (18.8°C). For swimming, a surface water temperature of 65.8°F (18.8°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).
What is the average length of the day in September?
In Mattapoisett Center, the average day length in September is 12h and 28min.
When are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 6:09 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:26 pm EDT.
Average sea temperature in September
Mattapoisett Center, MA
- Average sea temperature in September: 65.8°F
The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).
Average daylight in September
Mattapoisett Center, MA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
Mattapoisett Center, Massachusetts, USA
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