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Acadia in May

The season starts. Bar Harbor reopens and Cadillac Summit Road reservations begin in late May. Blackflies emerge in the woods.

Quiet valueCool, highs near 61F (16C), fog possible
Acadia National Park, United States
AcadiaPhoto: King of Hearts, CC BY-SA 4.0

The straight answer

May is a quiet, good-value month to visit Acadia. The season starts. Bar Harbor reopens and Cadillac Summit Road reservations begin in late May. Blackflies emerge in the woods.

Weather
Cool, highs near 61F (16C), fog possible
Crowds
2 of 5
Prices
2 of 5

What May is like in Acadia

May is when Acadia's season begins. Highs reach about 61F (16C), fog can roll in off the water, and the woods turn green. Bar Harbor's shops and restaurants reopen, and Cadillac Summit Road reservations begin in late May. Crowds are light and prices moderate, but blackflies come out in the woods.

May suits couples and quiet-seekers who want open roads without summer crowds, and who do not mind cool days and bugs. Families wanting warm weather, tide pools and everything running should look at late June through August. For the best mix of weather and space, September is the pick.

Make the most of May

What is especially good about Acadia this month.

01

Open roads, few people

The Park Loop Road is open and summer traffic has not arrived, so stops like Sand Beach and Otter Cliff are easy.

02

Cadillac sunrise reservations start

Summit road reservations begin in late May. Early season slots are easier to get than in summer.

03

Tide pools at Ship Harbor

Low tide at Ship Harbor and Wonderland shows off sea stars, snails and seaweed, a hit with kids.

What to pack for May

  • Insect repellent or a head net for blackflies in the woods
  • A warm fleece and a rain shell for foggy days
  • Rubber boots or sturdy shoes for tide pooling
  • A tide chart to time Ship Harbor and Thunder Hole

Our timing tip

Visit in the last week of May when more businesses are open, and book a Cadillac sunrise reservation as soon as your dates are released.

Book Acadia for May.

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Things to do in Acadia

Full guide
01

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.

Tickets and tours →

02

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.

Tickets and tours →

03

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.

Official site ↗Tickets and tours →

04

Carriage roads

Rent bikes in Bar Harbor or walk from Jordan Pond. Some routes close during spring thaw to prevent damage.

Official site ↗Tickets and tours →

05

Beehive and Precipice trails

Iron-rung cliff climbs for confident hikers. Precipice often closes in spring and summer for nesting peregrine falcons.

Tickets and tours →

06

Schoodic Peninsula

The park's quieter mainland section, an hour's drive from Bar Harbor, with a loop road and wave-battered granite.

Official site ↗Tickets and tours →

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.

Know before you go

  • 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.

Acadia in May, quick answers

Is May a good time to visit Acadia?

May is a quiet, good-value month to visit Acadia. The season starts. Bar Harbor reopens and Cadillac Summit Road reservations begin in late May. Blackflies emerge in the woods.

What is the weather like in Acadia in May?

Cool, highs near 61F (16C), fog possible.

Is Acadia crowded in May?

May is one of the quieter months in Acadia; most sights can be done without long waits.

Keep planning Acadia.

The months either side, and the best one if this is not it.

  1. 01Acadia in AprilThe month before: Cool and damp, highs near 51F (11C)Think twice
  2. 02Acadia in JuneThe month after: Mild, highs near 70F (21C), fog commonGood
  3. 03Acadia in SeptemberThe next best month: Crisp, highs near 68F (20C), clear daysBest

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Where else is good in May?

Tell us when you can go and what kind of trip you want. We rank every place we cover for that exact month.

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