Acadia · September · Maine
Acadia National Park in September
September is a prime month to visit Acadia National Park. Expect peak crowds. Highs average 61°F and lows 53°F, with about 3.81 inches of rain.
September gets a prime rating at Acadia. The very best months are Jun, Sep–Oct.
Prime season starts
What to expect
September is prime at Acadia. The best season. Fall color peaks in early-to-mid October, but expect crowds, including from cruise ships.
Use the free Island Explorer bus in summer and fall to skip the parking battle.
Good to know
- Best months overall: Jun, Sep–Oct.
- Closest airport: Bar Harbor (BHB), about 20 minutes; Bangor (BGR), about 1 hour.
- Before you go: Cadillac Summit Road requires vehicle reservations for much of the year. Check current conditions on nps.gov.
Questions
Is September a good time to visit Acadia National Park?
September is a prime month to visit Acadia National Park. Expect peak crowds. Highs average 61°F and lows 53°F, with about 3.81 inches of rain.
What is the weather like in Acadia National Park in September?
Highs average 61°F and lows 53°F, with about 3.81 inches of rain. September is rated prime for visiting.
How crowded is Acadia National Park in September?
September brings peak crowds to Acadia National Park. Go early in the day and book lodging ahead.