Acadia National Park weather in September
Cool, with occasional showers. Average highs of 16°C and lows of 11°C, with around 9 rainy days expected throughout the month.
While September isn't our top-rated month for Acadia National Park, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
16°C
Average low
11°C
Rainy days
9 days
Best months to visit
Year-round
What to do in Acadia National Park in September
Whatever the weather, Acadia National Park rewards curious visitors. Here are some of the best ways to spend your time:
Explore
Dine
Culture
Nature
Shopping
Day trips
What to pack for September
Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.
Browse other months
January
-2C
Cold, with some rainy days.
February
-1C
Cold, with some rainy days.
March
1C
Cold, with some rainy days.
April
6C
Cold, with some rainy days.
May
11C
Cool, with some rainy days.
June
15C
Cool, with some rainy days.
July
19C
Mild and comfortable, with some rainy days.
August
19C
Mild and comfortable, with occasional showers.
September (you are here)
16C
Cool, with occasional showers.
October
11C
Cool, with some rainy days.
November
6C
Cold, with some rainy days.
December
1C
Cold, with some rainy days.
Book your September trip to Acadia National Park
Find hotels, tours and experiences for the perfect escape.
