Measurements:
°C
°F
Kennebunkport
50°F
E 11 mph
Feels like: 44°F
Precip: 3%
World Resorts USA Kennebunkport Weather

Kennebunkport Sea Water Temperature

Current Sea Water Temperature:
+59.2°F
Maximum Sea Water Temperature in October: 63.4°F
Minimum Sea Water Temperature in October: 52.6°F
Average water temperature in October: 57.8°F

Sea Water Temperature for the Last 10 Days:

October 05 59.2°F September 30 57.6°F
October 04 58.4°F September 29 58.0°F
October 03 58.6°F September 28 59.0°F
October 02 56.8°F September 27 60.0°F
October 01 55.8°F September 26 59.8°F

When is the Warmest Sea for Kennebunkport?

According to our data for the last three years for Kennebunkport the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Kennebunkport was 67.5°F. The maximum and minimum values were 63.4°F and 71.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Kennebunkport was 64.1°F. The maximum and minimum values were 58.8°F and 68.4°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Kennebunkport was 63.1°F. The maximum and minimum values were 57.6°F and 66.6°F respectively.

Best Time to Visit Kennebunkport
The most sunny months:
November 15 days
October 14 days
August 13 days
The most warm months:
July 81.0 °F
August 79.4 °F
June 74.2 °F
Warmest sea temperature:
August 67.5 °F
July 64.7 °F
September 63.8 °F
The most cold months:
January 29.4 °F
February 30.3 °F
December 34.9 °F
The most rainy months:
July 3 days
October 3 days
April 3 days
The most windy months:
March 9 mph
November 8 mph
December 8 mph

Kennebunkport on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +62
Hawaii +82
Houston +86
Las Vegas +92
Los Angeles +100
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
Kennebunkport
Local time: 19:52
05 oct, monday
2100 50°F
E
11 mph
06 oct, tuesday
0000 44°F
E
11 mph
0300 44°F
E
12 mph
0600 42°F
E
12 mph
0900 46°F
E
12 mph
1200 54°F
SE
12 mph
1500 56°F
SE
13 mph
1800 50°F
SE
7 mph