Bar Harbor weather in September
Mild and comfortable, with occasional showers. Average highs of 19°C and lows of 14°C, with around 8 rainy days expected throughout the month.
While September isn't our top-rated month for Bar Harbor, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
19°C
Average low
14°C
Rainy days
8 days
Best months to visit
July, August
What to do in Bar Harbor in September
Whatever the weather, Bar Harbor 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
0C
Cold, with some rainy days.
February
0C
Cold, with some rainy days.
March
3C
Cold, with some rainy days.
April
9C
Cold, with some rainy days.
May
14C
Cool, with some rainy days.
June
19C
Mild and comfortable, with some rainy days.
Recommended
July
23C
Mild and comfortable, with some rainy days.
Recommended
August
23C
Mild and comfortable, with occasional showers.
September (you are here)
19C
Mild and comfortable, with occasional showers.
October
14C
Cool, with some rainy days.
November
8C
Cold, with some rainy days.
December
3C
Cold, with some rainy days.
Book your September trip to Bar Harbor
Find hotels, tours and experiences for the perfect escape.
