September weather forecastOcean Bluff-Brant Rock, MA
September
Weather in September
Ocean temperature
In September, the average ocean temperature in Ocean Bluff-Brant Rock, Massachusetts, is 64°F (17.8°C).Note: For the majority, swimming in water with a temperature of 64°F (17.8°C) is not enjoyable. The difficulty in managing breathing rises as the temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Ocean Bluff-Brant Rock, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:08 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:25 pm EDT.
Updated: Aug 2, 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
In Ocean Bluff-Brant Rock, in September, the average water temperature is 64°F (17.8°C). For most, swimming in 64°F (17.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).
In Ocean Bluff-Brant Rock, the average day length in September is 12h and 28min.
In September, on the first day of the month, sunrise is at 6:08 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:25 pm EDT.
Average sea temperature in September
Ocean Bluff-Brant Rock, MA
- Average sea temperature in September: 64°F
The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight in September
Ocean Bluff-Brant Rock, MA
- Average daylight in September: 12h and 30min
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).





