Measurements:
°C
°F
CURRENT WEATHER
17:34
Bar Harbor
74°F
NE 8 mph
Feels like: 80°F
Precip: 6%
World Resorts USA Bar Harbor Weather

7 Day Weather Forecast

08.25
tue
DAY
78°F
N 8 mph
precip
7%
NIGHT
66°F
E 5 mph
precip
19%
08.26
wed
DAY
76°F
E 6 mph
precip
2%
NIGHT
60°F
NE 5 mph
precip
12%
08.27
thu
DAY
72°F
N 8 mph
precip
16%
NIGHT
64°F
N 8 mph
precip
27%
08.28
fri
DAY
70°F
N 11 mph
precip
22%
NIGHT
64°F
SE 2 mph
precip
47%
08.29
sat
DAY
72°F
SE 8 mph
precip
1%
NIGHT
56°F
E 5 mph
precip
25%
08.30
sun
DAY
70°F
N 9 mph
precip
11%
NIGHT
64°F
E 5 mph
precip
17%
08.31
mon
DAY
70°F
S 9 mph
precip
7%
NIGHT
54°F
NE 6 mph
precip
13%

Bar Harbor Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Bar Harbor was 15.8°F. The maximum and minimum values were 14.6°F and 17.5°F respectively.

Bar Harbor on the Weather Map

Best Time to Visit Bar Harbor
The most sunny months:
October 13 days
September 13 days
November 13 days
The most warm months:
July 75.0 °F
August 73.4 °F
June 68.6 °F
Warmest sea temperature:
August 62.3 °F
July 60.0 °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