The temperatures in Bar Harbor in May are quite cold with temperatures between 7°C and 15°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Bar Harbor. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Bar Harbor in May 2025.
If you’re planning to visit Bar Harbor in the near future, we highly recommend that you review the 14 day weather forecast for Bar Harbor before you arrive.
Temperatures
15° / 7°
Rainy Days
9
Snowy Days
0
Dry Days
22
Rainfall
125
mm
Sun Hours
8.4
Hrs
