Search flights, hotels & activities for Bar Harbor
Compare flights, hotels, cars, and activities in one place.
500+airlines & travel sites compared
21,000+routes tracked
€0booking fees from us
Freeprice drop alerts
Things to Do in Bar Harbor in September
Real historical weather for Bar Harbor in September: average highs of 21°C and lows of 13°C, with around 94mm of rain (averaged over the last 3 years). Bar Harbor is in United States.
21°C
Average high
13°C
Average low
94mm
Typical rainfall
Real things to do in Bar Harbor in September
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad

Shared 2 Hour September Sunset Cruise from Gig Harbor
★ 4.9(14 reviews)· 2 hrs
From €58

Premium Narrated Bus Tour of Bar Harbor and Acadia National Park (3.5 Hours)
★ 4.8(690 reviews)· 4 hrs
From €80

Narrated Bus Tour of Bar Harbor and Acadia National Park
★ 4.7(1,965 reviews)· 2h 30m
From €54

Bar Harbor Premium Tour with Cadillac Mountain and Acadia Park
★ 4.6(248 reviews)· 4 hrs
From €120

Boston Harbor Sunset Cruise
★ 4.6(708 reviews)· 2 hrs
From €49

Savor Bar Harbor Culinary Walking Tour
★ 4.5(77 reviews)· 3 hrs
From €143

90-minute Ghost Walking Tour in Bar Harbor
★ 4.5(183 reviews)· 1h 30m
From €29

Historic Bar Harbor Self-Guided Walking Audio Tour Guide
★ 4.4(39 reviews)· 2 hrs
From €13

Acadia National Park & Bar Harbor Self-Guided Driving & Walking Tour
★ 4.3(67 reviews)· 5 hrs
From €22

Ultimate Acadia National Park Self-Guided Driving Audio Tour
★ 4.2(539 reviews)· 3 hrs
From €15
Real listings from Viator, including live ratings and prices — clicking through takes you to book directly.
Plan the rest of your trip
Continue planning your trip to Bar Harbor
Same destination, real availability — no need to search again.
FAQs — Bar Harbor in September
Based on real historical data (averaged over the last 3 years), expect highs around 21°C and lows around 13°C, with roughly 94mm of rain.