Acadia National Park New England, USA Travel Guide
Climate patterns throughout the year: Spring (April-May) starts with temperatures from 30s-50s°F (0-10°C), often with fog. Summer (June-August) brings 60s-70s°F (15-25°C), long daylight, and mild weather. Fall (September-October) means crisp air, 40s-60s°F (5-15°C), and stunning foliage. Winter (November-March) is cold and snowy, 10s-30s°F (-10 to 0°C), with many park roads closed to vehicles.
Pack layers for any season, even summer. Coastal Maine weather changes quickly, especially when you gain elevation or approach the water. A waterproof outer layer is always a good idea.
Fog is a common occurrence in Acadia, specifically during spring and early summer mornings. This dense fog can significantly obscure scenic views from mountain summits or coastal overlooks. Coastal storms, known as Nor'easters, can occur year-round, bringing heavy rain, strong winds, and coastal flooding.
Winter conditions require particular awareness, as snow, ice, and freezing rain frequently lead to road closures and slippery trails, making travel challenging.
Late June - Early September
All park facilities open, mild weather, full Island Explorer shuttle schedule.
Highest crowds, bustling towns, higher accommodation prices, traffic congestion.
May, Early June, Mid-September - Mid-October
Fewer crowds, pleasant temperatures, wildflowers (spring), stunning foliage (fall).
Limited shuttle/visitor center hours early in season, unpredictable weather, black flies in late spring.
Late October - April
Solitude, tranquility, winter recreation (skiing, snowshoeing), lower accommodation prices, no park entrance fee.
Most park roads closed, many businesses close for season, limited services, unpredictable harsh weather.
Late spring, summer, and fall present the best conditions for hiking and biking.
Summer offers the warmest water temperatures, making water activities more comfortable.
Mid-October typically shows peak foliage, though this varies slightly each year.
Mid-December to March provides the most reliable snow accumulation for cross-country skiing and snowshoeing.
Any clear morning allows for a spectacular sunrise. Vehicle access to Cadillac Summit Road closes from mid-November to mid-April. Vehicle reservations are needed during peak season.
Travel to Acadia National Park abides by standard U.S. Entry regulations. Your nationality determines the specific requirements.
U.S. Citizens need a government-issued ID. Canadian citizens require a valid passport or NEXUS card. Visa Waiver Program countries need an ESTA for stays up to 90 days. Other nationalities generally require a B-1 or B-2 visitor visa, with an application process that takes time.
Acadia National Park charges an entrance fee for all visitors, valid for 7 days. Fees vary based on your mode of entry.
Travel insurance is recommended for protection against unexpected events like medical emergencies, trip cancellations, or lost luggage. Consider a policy that covers outdoor activities.
