Measurements:
°C
°F
CURRENT WEATHER
14:21
Bar Harbor
94°F
NE 11 mph
Feels like: 92°F
Precip: 1%
World Resorts USA Bar Harbor Weather

7 Day Weather Forecast

08.05
wed
DAY
92°F
NE 7 mph
precip
1%
NIGHT
66°F
E 4 mph
precip
5%
08.06
thu
DAY
84°F
N 5 mph
precip
2%
NIGHT
70°F
E 4 mph
precip
6%
08.07
fri
DAY
82°F
N 7 mph
precip
14%
NIGHT
68°F
NE 2 mph
precip
25%
08.08
sat
DAY
80°F
NW 4 mph
precip
23%
NIGHT
64°F
N 3 mph
precip
46%
08.09
sun
DAY
82°F
NE 3 mph
precip
12%
NIGHT
66°F
NE 4 mph
precip
15%
08.10
mon
DAY
74°F
N 8 mph
precip
8%
NIGHT
70°F
SE 3 mph
precip
30%
08.11
tue
DAY
64°F
S 6 mph
precip
49%
NIGHT
62°F
NE 5 mph
precip
28%

Bar Harbor Sea Water Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Bar Harbor was 15.4°F. The maximum and minimum values were 13.8°F and 17.0°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 62.4 °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