United States, North America
The best time to visit Acadia
Granite coast, carriage roads, and a short season: Acadia's calendar runs from Memorial Day to Columbus Day and not much else.
- Best months
- Sep and Oct
- Think twice
- Mar to Apr and Nov
- Quietest
- January
- Cheapest
- January
The straight answer
The best time to visit Acadia National Park is September through mid October, when the summer crowds thin, the weather is crisp and clear, and fall color peaks around early to mid October; July and August are warmer but the most crowded.
Go September through mid October. After Labor Day, family crowds leave Mount Desert Island, the fog of early summer gives way to clear, crisp days, and the hardwoods around Jordan Pond and the carriage roads turn red and gold, usually peaking around the first half of October. It is the park at its most beautiful, and Bar Harbor is still fully open.
July and August are the peak: warm days in the 70s F (about 21C to 26C), every shop and restaurant open, the free Island Explorer buses running, and the Park Loop Road busy from morning to night. Late May and June are quieter but can be foggy and cool, and blackflies and mosquitoes are at their worst in the woods early in the season.
Winter is a different place. The Park Loop Road and the Cadillac Summit Road close to vehicles from December 1 through mid April, most Bar Harbor businesses shut for the season, and the park becomes a quiet world for cross-country skiers and snowshoers. Driving to the summit of Cadillac Mountain also requires a vehicle reservation from late May to late October, so plan that sunrise ahead.
Acadia, month by month
Every month gets a verdict. Tap one for its own page: weather, crowds, prices and what is on.
- 01JanuaryQuiet valueCold, highs near 31F (-1C), snow and iceWinter solitude on the carriage roads for skiers and snowshoers. Park Loop Road is closed to cars and most of Bar Harbor is shut.CrowdsPrice
- 02FebruaryQuiet valueCold, highs near 33F (1C)Quiet coast and frozen waterfalls, with very few services. Only for travelers who want winter on its own terms.CrowdsPrice
- 03MarchThink twiceRaw, highs near 41F (5C), mud and iceMud season. Loop roads are still closed and carriage roads may be closed to protect the surfaces during the thaw.CrowdsPrice
- 04AprilThink twiceCool and damp, highs near 51F (11C)Park Loop Road reopens around mid month, but many businesses are still closed and the landscape is brown and muddy.CrowdsPrice
- 05MayQuiet valueCool, highs near 61F (16C), fog possibleThe season starts. Bar Harbor reopens and Cadillac Summit Road reservations begin in late May. Blackflies emerge in the woods.CrowdsPrice
- 06JuneGoodMild, highs near 70F (21C), fog commonLong days, lupines in bloom, and moderate crowds, though fog can hide the coast for days.Hotels for June →CrowdsPrice
- 07JulyGoodWarm, highs near 77F (25C)Everything open, the Island Explorer running, and peak crowds. Book lodging well ahead.Hotels for July →CrowdsPrice
- 08AugustGoodWarm, highs near 76F (24C)Warmest water of the year, which is still cold. Crowds peak, especially on weekends and cruise ship days.Hotels for August →CrowdsPrice
- 09SeptemberBestCrisp, highs near 68F (20C), clear daysSummer crowds gone after Labor Day, and some of the clearest weather of the year. The Acadia Night Sky Festival takes place in September.Hotels for September →CrowdsPrice
- 10OctoberBestCool, highs near 57F (14C), fall colorPeak foliage usually around the first half of the month. Leaf peepers and fall cruise ships crowd Bar Harbor; many businesses close after Columbus Day.Hotels for October →CrowdsPrice
- 11NovemberThink twiceCold and gray, highs near 46F (8C)Leaves gone, most businesses closed, and the loop roads close to vehicles on December 1. Little reason to go.CrowdsPrice
- 12DecemberQuiet valueCold, highs near 36F (2C), first snowLoop roads closed to cars. Quiet walks on the coast for those who want solitude; very limited lodging and dining.CrowdsPrice
Book Acadia for September.
Sponsored links to Expedia and Vrbo. We may earn a commission; it never changes a verdict.
- Hotels for September
Hotels. Expedia
Hotels in AcadiaOpens a hotel search for Acadia in September, dates filled in. Book early for the best months: the good rooms go first.
- Rentals on Vrbo
Vacation rentals. Vrbo
Vacation rentals in AcadiaWhole homes, condos and villas. Usually the better deal for families and groups, with a kitchen and room to spread out.
- Tours and tickets
Tours and tickets. Expedia
Tours and tickets in AcadiaTimed-entry tickets, day trips and guided tours in Acadia for September. Popular slots sell out in the best months.
Why go to Acadia
The highest point on the Atlantic coast
Cadillac Mountain, at 1,530 feet, is the tallest peak on the US Atlantic seaboard, and from early October to early March it catches the first sunrise in the United States.
The carriage roads
Forty-five miles of broken-stone carriage roads and stone bridges, built by John D. Rockefeller Jr., are closed to cars and perfect for walking and biking.
Granite meets the Atlantic
Pink granite cliffs, crashing surf at Thunder Hole, and cobble beaches give Acadia a coastline unlike anything else in the national park system.
Lobster and small towns
Bar Harbor, Northeast Harbor, and Southwest Harbor add lobster pounds, harbors, and a classic Maine summer around the park.
Things to do, and when to do them
Cadillac Mountain sunrise
A vehicle reservation is required to drive the summit road from late May to late October. Or hike up in the dark on the North or South Ridge trails.
Park Loop Road
A 27-mile scenic drive past Sand Beach, Thunder Hole, and Otter Cliff. Closed to cars from December 1 to mid April.
Jordan Pond and Jordan Pond House
Walk the shoreline loop, then have popovers on the lawn, a tradition since the late 1800s. The restaurant is seasonal.
Carriage roads
Rent bikes in Bar Harbor or walk from Jordan Pond. Some routes close during spring thaw to prevent damage.
Beehive and Precipice trails
Iron-rung cliff climbs for confident hikers. Precipice often closes in spring and summer for nesting peregrine falcons.
Schoodic Peninsula
The park's quieter mainland section, an hour's drive from Bar Harbor, with a loop road and wave-battered granite.
Bass Harbor Head Light
The classic lighthouse photo on the quiet side of the island. Sunset is busy; the parking lot is small.
Events and seasons worth planning around
New England fall foliage
Late September through mid October, peak usually the first half of October
Acadia's maples, birches, and oaks against the granite and sea are one of the region's best color shows.
Acadia Night Sky Festival
Several days in September
Star parties, talks, and night programs celebrating Acadia's dark skies.
Lupine bloom
Early to mid June
Purple, pink, and white lupines line roadsides and fields around Mount Desert Island.
Beat the crowds
- Take the free Island Explorer bus in season instead of hunting for parking at Jordan Pond, Sand Beach, or trailheads.
- Book Cadillac Summit Road reservations as soon as they are released for your dates; sunrise slots go first.
- Explore the Quiet Side around Southwest Harbor and Bass Harbor, or the Schoodic Peninsula, when Bar Harbor is crowded.
- Visit midweek in late September for crisp weather, open businesses, and far fewer people than the October foliage weekends.
- Check the Bar Harbor cruise ship schedule; big ship days bring waves of visitors into town and the park.
Open or closed
- Most of the Park Loop Road and the Cadillac Summit Road close to vehicles from December 1 to April 14; short sections stay open for winter access.
- A vehicle reservation is required to drive the Cadillac Summit Road from late May to late October. Reservations are sold online, not at the park.
- Bar Harbor and the island's restaurants, shops, and inns are largely seasonal, with many opening in May and closing after Columbus Day in October.
- The Island Explorer free bus system runs seasonally, typically from late June into mid October. Check the current schedule.
- Carriage roads can close temporarily during the spring thaw and other wet periods to protect the surfaces.
With kids in tow
- Kids love Sand Beach (with very cold water), Thunder Hole at mid to high tide, and the tide pools at Ship Harbor and Wonderland.
- The carriage roads are ideal for family biking: no cars, gentle grades, and stone bridges to discover.
- Skip the Beehive and Precipice with young children; iron rungs and exposure make them adults-and-teens-only climbs.
- For homeschool families, September weekdays offer open facilities, thin crowds, and lessons in tides, geology, and the granite coast.
Getting there
- Bangor International (BGR) is about an hour and fifteen minutes from Bar Harbor; Hancock County-Bar Harbor Airport (BHB) has small-plane service from Boston.
- Portland (PWM) is about three hours by car and Boston about five, with most of the drive on Interstate 95 and US Route 1.
- From Texas, connect through Boston, New York, Washington, or Charlotte to Bangor or Portland.
Packing? Packing cubes and the airport kit.
Acadia for the holidays
Holiday and school-break weeks where Acadia makes our ranked list.
Memorial Day Weekend
May
The unofficial start of summer, and the first weekend the national parks and beach towns fill up. Pick a place that is fully open but not yet full.
Summer Vacation
June, July, August
Ten weeks, one country on vacation, and half the world too hot or too rainy. Go north, go high, or go south of the equator.
Fourth of July
July
The biggest fireworks night of the year and the busiest summer travel week. Go to the celebration, or go somewhere cool enough to enjoy it.
Labor Day Weekend
August, September
Summer's last long weekend, and the first week of the best travel season of the year. Just keep an eye on the tropics.
Acadia timing, quick answers
What is the best month to visit Acadia National Park?
September for crisp, clear weather and thin crowds, or early October for peak fall color. Both keep the park and Bar Harbor fully open.
When is peak fall foliage in Acadia?
Usually around the first half of October, varying by year and weather. Color starts in late September and fades by late October.
Do you need a reservation for Acadia?
You need a park entrance pass year-round. A separate vehicle reservation is required to drive the Cadillac Summit Road from late May to late October. Check the park's current rules.
Is Acadia open in winter?
Yes, but most of the Park Loop Road and the Cadillac Summit Road close to cars from December 1 to mid April. The carriage roads become cross-country ski routes, and most Bar Harbor businesses close.
What is the cheapest time to visit Acadia?
May and early June, before summer rates, or late October after the foliage peak. Winter is cheaper still, but few services operate.
When is Acadia most crowded?
July, August, and the foliage weekends in early to mid October, especially on days when large cruise ships are in Bar Harbor.
Weighing alternatives
Similar trips, with their best months.
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