September weather forecastLamoine State Park, ME
September
Weather in September
Ocean temperature
In Lamoine State Park, Maine, the average seawater temperature in September is 55.9°F (13.3°C).Note: Staying in 55.9°F (13.3°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
In Lamoine State Park, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 5:56 am and sunset at 7:09 pm. On the last day of September, sunrise is at 6:30 am and sunset at 6:15 pm EDT.
Updated: Aug 26, 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 September, the average ocean temperature is 55.9°F (13.3°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.
In Lamoine State Park, the average day length in September is 12h and 30min.
On the first day of September, sunrise is at 5:56 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 6:15 pm EDT.
Average sea temperature in September
Lamoine State Park, ME
- Average sea temperature in September: 55.9°F
The best month for swimming (with the highest average sea temperature) is August (56.8°F).
The coldest month (with the lowest average sea temperature) is March (38.6°F).
Average daylight in September
Lamoine State Park, ME
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).





