Maine weather in September 2025

The temperatures in Maine in September are comfortable with low of 14°C and and high up to 26°C.

You can expect about 3 to 8 days of rain in Maine during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Maine in September 2025.

If you’re planning to visit Maine in the near future, we highly recommend that you review the 14 day weather forecast for Maine before you arrive.

Temperatures

26° / 14°

Rainy Days

Snowy Days

Dry Days

Rainfall

107

Sun Hours

10.6

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1 31° /15°	2 34° /16°	3 32° /17°	4 33° /15°	5 33° /18°	6 35° /18°
7 31° /15°	8 29° /13°	9 29° /13°	10 26° /14°	11 30° /16°	12 29° /15°	13 31° /14°
14 31° /16°	15 31° /17°	16 32° /17°	17 31° /17°	18 33° /16°	19 34° /18°	20 32° /17°
21 28° /16°	22 24° /13°	23 27° /11°	24 28° /13°	25 30° /12°	26 31° /14°	27 28° /14°
28 27° /12°	29 30° /14°	30 29° /16°

Explore the weather in Maine in other months

Maine annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	0° / -8°	2	19	9	27 mm	Awful	Maine in January
February	2° / -7°	1	18	9	36 mm	Awful	Maine in February
March	11° / 1°	5	22	5	63 mm	Bad	Maine in March
April	16° / 6°	6	23	2	95 mm	Ok	Maine in April
May	22° / 12°	8	23	0	170 mm	Ok	Maine in May
June	28° / 18°	9	21	0	179 mm	Good	Maine in June
July	30° / 19°	7	24	0	114 mm	Ok	Maine in July
August	29° / 18°	7	24	0	154 mm	Ok	Maine in August
September	26° / 14°	6	24	0	107 mm	Perfect	Maine in September
October	18° / 8°	5	25	1	83 mm	Good	Maine in October
November	10° / 2°	2	26	2	33 mm	Bad	Maine in November
December	3° / -5°	3	22	7	48 mm	Awful	Maine in December