Get the monthly weather forecast for Maine, ME, including daily high/low, historical averages, to help you plan ahead.

20°C 68°F What is Average High Low Temperature? The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily.

Average temperatures for September at cities, communities, lakes and other locations throughout Maine are listed below in degrees Fahrenheit and Celsius.

In the Southern Interior Division during a very warm summer, temperatures may reach 90° for as many as 25 days, and in the Coastal Division, two to seven days.

The temperature reaches around 20℃ during the daytime in September, falling away to 8℃ at night. The UV index will be moderate at this time of year, so not ...

Foliage season begins in September, making it a perfect time for day trips to a half dozen waterfalls in the Western Mountains of Maine. October. Maine Fall ...

In Bar Harbor during September average daily high temperatures decrease from 69°F to 61°F and it is overcast or mostly cloudy about 39% of the time.

Get the monthly weather forecast for Portland, ME, including daily high/low, historical averages, to help you plan ahead.

The climate good here september. The high seasonal norm is 70°F. In the morning the temperature drops to 56°F. Thus, the mean temperature average in september ...