Weather in September
Ocean temperature
In Mystic Island, New Jersey, in September, the average water temperature is 71.2°F (21.8°C).Note: For most individuals, swimming in 71.2°F (21.8°C) is not a pleasant experience. The difficulty in managing breathing increases as the temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:41 pm EDT.
Updated: Aug 29, 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
What is the ocean temperature in September?
In Mystic Island, in September, the average water temperature is 71.2°F (21.8°C). For swimming, a surface water temperature of 71.2°F (21.8°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 Mystic Island, the average day length in September is 12h and 26min.
What time are sunrise and sunset in September?
On the first day of September in Mystic Island, sunrise is at 6:26 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:41 pm EDT.
Average sea temperature in September
Mystic Island, NJ
- Average sea temperature in September: 71.2°F
The best month for swimming (with the highest average sea temperature) is August (75.8°F).
The coldest month (with the lowest average sea temperature) is February (40.8°F).
Average daylight in September
Mystic Island, NJ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
Mystic Island, New Jersey, USA
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