Bar Harbor (ME) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Bar Harbor.
Climate overview of Bar Harbor
Bar Harbor, Maine, United States of America, sees big temperature differences between seasons, with July peaking at 25°C (77°F) and January dropping to 0°C (32°F).
With around 1425 mm (56 in) of annual rain/snowfall, Bar Harbor has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has warm summers and very cold winters. The wettest month is October.
Bar Harbor Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bar Harbor - and find the best time to visit.
Monthly Temperature in Bar Harbor
Visitors to Bar Harbor can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 25°C (77°F) in July. In January, the coolest month of the year, temperatures drop to a very cold 0°C (32°F).
At night, temperatures range from around 16°C (61°F) in July to -9°C (16°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Bar Harbor
Bar Harbor is known for its substantial rain/snowfall, with annual precipitation reaching 1425 mm (56 in). Bar Harbor experiences moderate seasonal variation in rainfall, with monthly averages ranging from 166 mm (6.5 in) in October, the wettest month, and 93 mm (3.7 in) in January, the driest month. For more details, please visit our Bar Harbor Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Bar Harbor
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -9°C (16°F).
Frequently asked questions about the climate in Bar Harbor
What is the best time to visit Bar Harbor?
July and August typically offer the most optimal weather in Bar Harbor. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Bar Harbor has warm summers and very cold winters.
What temperatures can I expect in Bar Harbor?
Daytime highs range from 0°C (32°F) in January to 25°C (77°F) in July. Nighttime lows range from -9°C (16°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Bar Harbor get?
Annual rainfall is around 1425 mm (56 in). October is the wettest month with 166 mm (6.5 in), while January is the driest with 93 mm (3.7 in).
Bar Harbor 3-Day Forecast
Bar Harbor (ME) 3-Day Forecast
Bar Harbor on the map
Bar Harbor is highlighted - select any city to see its climate.
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