Measurements:
°C
°F
CURRENT WEATHER
13:05
Bar Harbor
54°F
NW 12 mph
Feels like: 52°F
Precip: 0%
World Resorts USA Bar Harbor Weather

7 Day Weather Forecast

05.14
thu
DAY
54°F
NW 12 mph
precip
0%
NIGHT
50°F
W 10 mph
precip
100%
05.15
fri
DAY
54°F
NW 8 mph
precip
67%
NIGHT
44°F
NW 4 mph
precip
0%
05.16
sat
DAY
62°F
NE 11 mph
precip
0%
NIGHT
52°F
NE 9 mph
precip
0%
05.17
sun
DAY
70°F
SE 16 mph
precip
0%
NIGHT
48°F
SE 6 mph
precip
0%
05.18
mon
DAY
64°F
SE 5 mph
precip
0%
NIGHT
50°F
NE 6 mph
precip
0%
05.19
tue
DAY
68°F
NE 11 mph
precip
0%
NIGHT
60°F
NE 7 mph
precip
0%
05.20
wed
DAY
78°F
NE 12 mph
precip
100%
NIGHT
62°F
E 7 mph
precip
0%

Bar Harbor Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Bar Harbor was 7.7°F. The maximum and minimum values were 5.4°F and 9.5°F respectively.

Bar Harbor on the Weather Map

Best Time to Visit Bar Harbor
The most sunny months:
November 13 days
September 13 days
October 13 days
The most warm months:
July 73.9 °F
August 73.4 °F
June 67.9 °F
Warmest sea temperature:
August 62.4 °F
July 60.3 °F
September 59.4 °F
The most cold months:
January 26.6 °F
February 27.7 °F
December 33.1 °F
The most rainy months:
October 3 days
March 2 days
December 2 days
The most windy months:
December 11 mph
March 11 mph
February 11 mph
more details