Bar Harbor Weather, When to Go and Climate Information

(Bar Harbor, Mount Desert Island, Maine - ME, USA)

If you are able to choose any time of the year to pay a visit to Bar Harbor, then make it the summer, when the climate is warm and sunny weather is abundant and to be expected. During the summer season, Bar Harbor enjoy temperatures averaging between 24°C / 75°F and 27°C / 81°F, feeling pleasantly warm, but not unbearably hot.

However, by night, the temperatures can fall sharply and create an altogether different feel, along with the need for extra clothing. Bar Harbor's summer climate can also be a little humid at times, and rainy weather is known to make an appearance at times, so come prepared for all eventualities.

Seasonal Climate Variations / When to Go

Not only is the summer a good time to visit Bar Harbor weather-wise, but there is also a lot on offer during this busy season, with a range of activities and attractions suiting Maine tourists visiting anytime between May and October.

The spring climate is noticeably cooler and damper, although by day, April sees temperatures as high as 16°C / 61°F, with many pleasant, fine days suitable for sightseeing. October is the start of the fall season and as the weather begins to cool down, the crowds also begin to reduce, although cruise liners still regularly dock in the port.

Bar Harbor Weather and Climate Chart (Averages)

	Maximum	Minimum
January	7°C / 45°F	1°C / 34°F
February	11°C / 52°F	2°C / 36°F
March	13°C / 55°F	4°C / 39°F
April	16°C / 61°F	5°C / 41°F
May	20°C / 68°F	8°C / 46°F
June	23°C / 73°F	12°C / 54°F
July	27°C / 81°F	14°C / 57°F
August	27°C / 81°F	14°C / 57°F
September	24°C / 75°F	11°C / 52°F
October	18°C / 64°F	7°C / 45°F
November	11°C / 52°F	4°C / 39°F
December	8°C / 46°F	2°C / 36°F