Average Temperatures for Maine in September





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

You can jump to a separate table for Maine's Coast, Central Maine and Northern Maine.

The tables give the normals for maximum and minimum monthly temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Maine Coast

Average September temperatures
High °F Low °F Place High °C Low °C
71 53 Acadia National Park 22 12
70 48 Belfast 21 9
70 50 Brunswick 21 10
67 51 Eastport 20 10
69 49 Jonesboro 21 9
69 49 Kennebunkport 21 9
69 52 Newcastle 21 11
71 52 Portland 22 11
68 52 Tenants Harbor 20 11

Central Maine

Average daily temperatures in September
High °F Low °F Place High °C Low °C
71 51 Augusta 22 11
71 49 Bangor 22 9
71 45 Dover-Foxcroft 22 7
68 46 Flagstaff Lake, Long Falls Dam 20 8
70 49 Grand Lake Stream 21 9
70 52 Lewiston 21 11
68 45 Lower Richardson Lake, Middle Dam 20 7
68 44 Rangeley 20 7
71 48 Rumford 22 9
72 50 Waterville 22 10

Northern Maine

September temperatures: daily averages
High °F Low °F Place High °C Low °C
66 43 Fort Kent 19 6
70 48 Millinocket 21 9
67 45 Moosehead Lake, Brassua Dam 20 7
69 47 Presque Isle 21 8
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Maine Temperatures
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