Best time to visit Acadia National Park

September to October. Month by month below, with the weather, what's on and what it costs to fly there from your city.

September to October

Sources favor September and October for foliage and lighter crowds. Some also name May and June as good, less crowded months.

“Those would be late spring/early summer months of May and June, and the fall months of September and October.” wblm.com
“If there's one time of year to make the trip, it's autumn.” becausetees.com
“autumn is the perfect season to vacation in Acadia” lostwithlydia.com

3 of the 6 travel guides we read name these months.

Acadia National Park month by month

Average high and low in Acadia, and days with rain

January33°F / 15°F · 12 rainy daysChecking fares…Winter is the quiet season, with very few visitors.Only part of the Park Loop Road stays open in winter, and some trails are hazardous or closed.Winter temperatures run roughly 14 to 35 F.
February35°F / 18°F · 10 rainy daysChecking fares…Winter is the quiet season, with very few visitors.Only part of the Park Loop Road stays open in winter, and some trails are hazardous or closed.
March42°F / 25°F · 12 rainy daysChecking fares…Only part of the Park Loop Road stays open in winter, and some trails are hazardous or closed.
April53°F / 35°F · 12 rainy daysChecking fares…Spring runs late April to June, with temperatures in the 40s and 50s F and some snow left on high trails.
May65°F / 45°F · 14 rainy daysChecking fares…May is one of four months a travel site rates as ideal, along with June, September and October.Spring brings mud and black flies.
June74°F / 54°F · 12 rainy daysChecking fares…June has fewer crowds than July and August.Average June temperatures run 50 to 70 F with less rain.June is when the park's wildflowers bloom.
July79°F / 60°F · 11 rainy daysChecking fares…Summer is the busiest stretch, with over three million visitors a year, many in summer.All facilities are open in summer.
August78°F / 60°F · 9 rainy daysChecking fares…Summer temperatures can swing from 45 to 90 F and change fast.Parking at popular spots like Jordan Pond is hard in summer.
Best timeSeptember71°F / 53°F · 11 rainy daysChecking fares…September temperatures run from the 50s to 70s F and drop toward October.Crowds ease after Labor Day.
Best timeOctober59°F / 43°F · 12 rainy daysChecking fares…Fall colors generally peak in mid-October.October is one of the rainiest months, and fog can hide summit views.Most Bar Harbor businesses close for the season around mid-October.
November48°F / 33°F · 11 rainy daysChecking fares…Winter conditions begin in November and run to early April.Only part of the Park Loop Road stays open in winter, and some trails are hazardous or closed.
December38°F / 22°F · 14 rainy daysChecking fares…Winter is the quiet season, with very few visitors.Only part of the Park Loop Road stays open in winter, and some trails are hazardous or closed.

Weather: Acadia averages (long-term averages), as listed in its climate table on Wikipedia.

Every date to Bangor from your city

Live fares from your airport. Watch them and we alert you when they drop.

Busy, quiet and what to watch for

Busiest

June to SeptemberPeak visitation, with July and August the busiest.

Quietest

November to early AprilFew visitors, and some roads and trails close.

Watch for

SpringMud and black flies.
OctoberRain and fog can hide views, and rocks get slippery.
Mid-October onwardMany Bar Harbor businesses close for the season.
Summer and fallDriving up Cadillac Mountain needs a reservation.

Questions people ask

When to avoid Acadia National Park?: Mid-summer brings the biggest crowds and hard parking, and winter closes part of the Park Loop Road.
What time should I get to Cadillac Mountain for sunrise?: One source suggests a 4 a.m. wake-up in early summer, and notes reservations are needed to drive up.

Best time to visit Acadia National Park

September to October

Acadia National Park month by month

Every date to Bangor from your city

Busy, quiet and what to watch for

Busiest

Quietest

Watch for

Questions people ask

Best time to visit other places

Best time to visit Acadia National Park

September to October

Acadia National Park month by month

Every date to Bangor from your city

Busy, quiet and what to watch for

Busiest

Quietest

Watch for

Questions people ask

Best time to visit other places