World Resorts USA Bar Harbor Weather

Bar Harbor sea water temperature

Current sea water temperature:
+55.2°F
Minimum sea water temperature in October: 58.8°F
Maximum sea water temperature in October: 52.0°F
Average sea water temperature in October: 55.3°F

Sea water temperature for the last 10 days:

October 9 55.2°F October 4 56.7°F
October 8 55.0°F October 3 57.6°F
October 7 55.4°F October 2 55.6°F
October 6 56.3°F October 1 54.3°F
October 5 56.7°F September 30 54.5°F

When is the warmest sea in Bar Harbor?

Based on the data about daily sea water temperature for the last three years the warmest sea in Bar Harbor was noticed in August, July and September.

Monthly Sea Temperatures in Bar Harbor, °F

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 60.6°F. The highest and lowest sea temperatures during the month were 63.5°F and 58.3°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 57.6°F. The highest and lowest sea temperatures during the month were 60.8°F and 54.1°F.

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 57.2°F. The highest and lowest sea temperatures during the month were 60.4°F and 54.5°F.

Best time for vacation in Bar Harbor

Sunniest months:
October 13 days
November 13 days
September 12 days
Warmest months:
July 72.5 °F
August 72.0 °F
June 66.7 °F
Warmest sea temp:
August 61.1 °F
July 59.0 °F
September 58.2 °F
Coldest months:
January 28.9 °F
February 29.9 °F
December 34.8 °F
Rainiest months:
October 3 days
March 2 days
December 2 days
Windiest months:
December 11.0 mph
March 10.8 mph
February 10.8 mph

Bar Harbor on a weather map

Bar Harbor
+46°F
E 6 mph
Feels like: +43°F
Precip.: 13%
Places in USA:
Name
°F
+54°F
+55°F
+79°F
+75°F
+75°F
+84°F
+72°F
+59°F
+73°F
+61°F
+73°F
+73°F
+75°F
+73°F
+61°F
24 Hours Forecast
Bar Harbor
Local time: 05:17
October 09, friday
0600
46°F
E
6 mph
0900
54°F
E
9 mph
1200
59°F
E
12 mph
1500
57°F
E
12 mph
1800
52°F
SE
12 mph
2100
46°F
E
9 mph
October 10, saturday
0000
45°F
E
10 mph
0300
43°F
E
13 mph
Units of measurement: °C / °F