The peak season at Acadia is June through August, when temperatures range from the 50s through 70s. Be sure to pack your sweater though, as winds keep the nights chilly even in the summer.
The fall swaps summer crowds for fall foliage and average temperatures in the 40s and 50s.
The winter and spring is the off-season. Winter temperatures are generally below freezing. Spring temperatures range from the mid-20s to mid-50s, with rain, mud and foggy mornings the norm.
Average Temperature (Monthly)
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Bass Harbor Head Lighthouse
Cadillac Mountain Sunrise
Camping, Hotels & Lodging
Echo Lake Beach
Isle au Haut
Sieur de Monts