Carriage roads
Spring thaw can close the carriage roads to protect the surface; choose the route after checking mud-season notices.
March · Carriage roads
What to see and do in Acadia in March
Choose a March outing that fits the route, weather and effort involved.
Park Loop Road
Much of Park Loop Road is normally closed to vehicles in March. Plan a walk on an accessible section and check the road report before setting out.
March · Park Loop Road
Acadia weather in March
March’s normal high is 42°F and low is 25°F, with 4.94 inches of precipitation. The Acadia NP NOAA station sits at ~470 ft near park headquarters, about 2.5 miles from the NPS API coordinate, so these numbers describe inland Mount Desert Island, not the summits or the open coast. NPS says weather on Cadillac Mountain (1,530 ft) and the other peaks can be very different from Bar Harbor.
Cooler Hotter
Jan
High33°F
Low15°F
Precip · in4.48
Feb
High35°F
Low18°F
Precip · in3.84
March
High42°F
Low25°F
Precip · in4.94
Apr
High53°F
Low35°F
Precip · in5.15
May
High65°F
Low45°F
Precip · in4.50
Jun
High74°F
Low54°F
Precip · in4.28
Jul
High79°F
Low60°F
Precip · in3.27
Aug
High78°F
Low60°F
Precip · in3.45
Sep
High71°F
Low53°F
Precip · in4.22
Oct
High59°F
Low43°F
Precip · in5.86
Nov
High48°F
Low33°F
Precip · in5.89
Dec
High38°F
Low22°F
Precip · in5.66
Acadia crowds in March
March averages 28,611 recreation visits, 4% of the peak monthly average in August.
LowestLowModerateHighPeakAverage month: 332,670March
Tips for your March visit
Check the approach before choosing the rest of the day.
APark Loop Road Entrance (Route 233)BSand Beach Entrance StationCyear-round access at Schooner Head RoadDBlackwoods Campground Entrance StationESeawall Campground Entrance StationFSchoodic Entrance (SERC)
- Park boundary
Park Loop Road Entrance (Route 233)
Most of the Park Loop has a winter vehicle closure. The limited winter sections are a different route.
How we built this page.
An independent guide using official data. Not affiliated with or endorsed by the National Park Service.
- Crowds
- 2021–2025 monthly averages. NPS recreation visits, compared with the park’s own busiest month. Visits are not unique visitors or a count of people on a trail.
- Weather
- 1991-2020 climate normals. NOAA’s Acadia NP, ME station. These describe typical weather at the station, not every part of the park or a forecast.
- Roads & lodging
- Normal seasonal schedules. NPS guidance and official operator information. Confirm access, hours and availability before you travel.
Historical records and data-quality checks
- Visit history: 1979–2025 NPS monthly recreation visits.
- Weather history: 1982–2025 daily observations, separate from climate normals. We average daily highs and lows and total the rain for each month.
- Complete months only: every day must pass our quality checks for that metric. Missing or incomplete records stay blank; we never interpolate.
- Excluded measurements: flagged, presumed-zero and lagged values. Trace rain counts as zero measurable rainfall.