Acadia National Park is a famously beautiful and diverse natural area located on coastal Maine. The park offers a range of recreational opportunities throughout the year, including hiking, biking, camping, skiing, and more. Meanwhile, its location in the northeastern US means that weather and climate conditions vary considerably between the four seasons. Knowing what to expect from the park’s weather during each season can make all the difference when it comes to planning a successful outdoor adventure and enjoying the best that Acadia has to offer, that’s why this comprehensive Acadia National Park weather guide is essential reading for anyone visiting the park. To help make this easier, we will review the average temperature, precipitation, and number of sunny days by month so you know what to expect when you visit Acadia National Park.

Spring Weather in Acadia National Park

Spring in Acadia National Park is typically sunny and mild, with average temperatures ranging from 40-60°F. The average precipitation during this time is relatively low, making it an ideal time for hiking and exploring the park’s many trails and scenic views.

  • Mild temperatures with occasional rain showers (average temperature: 40-60°F, average precipitation: 3-4 inches)
  • Approximately 7-8 sunny days and 8-9 rainy days per month
  • Ideal for hiking, birdwatching, and scenic drives
  • Lush green landscape starts to come to life

The spring months in Acadia are March, April and May, and the weather during this season can vary significantly depending on the location within the park. Generally speaking, the average temperature during these months tends to be in the high 30s to low 50s Fahrenheit. Meanwhile, precipitation during these months can also vary throughout the park, but typically ranges from comfortable levels (2-3 inches per month) to higher levels (sometimes up to 4 inches per month). The number of days with precipitation generally stays between 8 and 10 through March and April, though May sometimes sees as many as 12 days with precipitation. On the plus side, Acadia usually sees around 17 sunny days in March, and as many as 21 sunny days in April and 25 in May.
Whatever your plans are for the spring, keep an eye on local weather conditions ahead of time to make sure you’re prepared for any possible conditions. If you’re heading out for a picnic or an extended hike, sunny day snacks and waterproof supplies can go a long way. And while it’s easy to get caught up in the beauty of spring, don’t forget the importance of putting on some layers – the damp cold can be dangerous if you’re not prepared.

Summer Weather in Acadia National Park

Summer in Acadia is warm and sunny, with average temperatures ranging from 60-80°F. This is the peak tourist season and the park is teeming with visitors enjoying various outdoor activities such as hiking, swimming, boating, and camping.

  • Warm and relatively dry with sunny days and occasional thunderstorms (average temperature: 60-80°F, average precipitation: 2-3 inches)
  • Approximately 9-10 sunny days and 4-5 rainy days per month
  • Ideal for swimming, kayaking, fishing, hiking, and scenic drives
  • Popular activities include hiking to the summit of Cadillac Mountain

June, July and August are the summer months in Acadia, and the weather during this season tends to be much more consistent. The average temperature in June tends to be in the high 50s to low 70s, while July and August bring slightly higher temperatures, often reaching the mid-70s and occasionally into the 80s.
Unlike in the spring, precipitation during the summer months is relatively low, usually ranging from 2 to 4 inches per month. However, July and August bring slightly higher chances of rain, with averages of 5-6 inches per month. But never fear: Acadia still experiences more than 20 days of sunshine in each of these months, so you’ll still get plenty of chances to appreciate its beauty.
Summer is one of Acadia’s peak tourist seasons, so be sure to account for the crowds when you’re planning your outdoor activities. Pack accordingly, adjust expectations for certain activities, and remember to soak up the sun responsibly. Sunscreen, proper hydration, and a shaded spot to cool off make all the difference in hot weather.

Fall Weather in Acadia National Park

Fall in Acadia is known for its vibrant foliage, with average temperatures ranging from 40-60°F. The average precipitation is relatively low during this time, making it an ideal time for scenic drives and hikes to enjoy the changing leaves.

  • Beautiful foliage with cool temperatures and occasional rain (average temperature: 40-60°F, average precipitation: 3-4 inches)
  • Approximately 7-8 sunny days and 7-8 rainy days per month
  • Ideal for scenic drives, hiking, birdwatching, and fishing
  • Known for its stunning display of changing leaves

The fall months in Acadia are September, October and November, and the weather during this season can be truly breathtaking. The park’s vibrant fall colors are best appreciated during this time, and temperatures here tend to be quite comfortable, often ranging from the mid-30s to mid-60s with occasional dips into the 50s.
Again, precipitation during the fall is relatively low, usually averaging from 2 to 4 inches each month. The number of days with precipitation also drops, usually only ranging from 6 to 8 days with precipitation in each of these months. Finally, although fall days in Acadia can be noticeably shorter, the park usually sees around 17 days of sunshine during these months.
You can make the most of the fall season in Acadia by taking the time to enjoy it at a relaxed pace. Fall is a great time to take a peaceful bike ride through the woods or have an outdoor picnic lunch at the beach. While this season is great for exploration and relaxation, remember to bring along a variety of layers that can easily be added and removed as the temperature changes.

Winter Weather in Acadia National Park

Winter in Acadia is cold and snowy, with average temperatures ranging from 20-30°F. Despite the cold weather, the park is still a popular destination for winter sports such as skiing, snowboarding, and snowshoeing. Average precipitation during this time is relatively high, making it an ideal time for those who enjoy winter landscapes.

  • Cold with snow and occasional rain (average temperature: 20-30°F, average precipitation: 4-5 inches)
  • Approximately 4-5 sunny days and 10-11 rainy days per month
  • Ideal for skiing, snowshoeing, snowmobiling, and hiking
  • Stunning views of the park covered in snow can be seen from the summit of Cadillac Mountain.

The winter months in Acadia are December, January and February, and this season can present quite a challenge to outdoor adventurers. Average temperatures during these months stay quite low, generally ranging from the high teens to mid-30s, meaning you’ll want to pack plenty of layers if you’re planning to spend time outdoors.
Meanwhile, precipitation is higher, usually ranging from 4 to 6 inches per month. Additionally, the number of days with precipitation is also on the rise, usually amounting to 10 to 12 days in each month. Lastly, sunny days in the winter are also in shorter supply, usually ranging from 8 to 10 days per month.
It’s best to prepare for winter in Acadia by focusing on what can be accomplished outdoors. Cross-country skiing, snowshoeing, and sledding are all popular activities here, and all fan be great ways to explore the park during the winter. However, be sure to remain aware of your surroundings and the risks of cold-weather activities, and don’t forget to bring along some protein-packed snacks that can provide an energy boost.

A Beautiful Adventure in All Seasons

Overall, the weather in Acadia National Park varies dramatically from season to season. Whether you’re looking for warmer temperatures and higher chances of sunshine or eager to brave the cold for some good winter adventures, Acadia National Park has something to offer. Knowing what to expect from the park’s weather and climate during each season can help make your visit more enjoyable and exciting. When planning your outdoor adventure, don’t forget to adjust your expectations to meet the conditions, or better yet, come prepared with a variety of potential activities. The changing of the seasons brings with it a new set of possibilities, so take the time to explore what Acadia has to offer year round.

Don’t miss out on anything on your next trip to Acadia. Check out our Acadia National Park Guide!