Measurements:
°C
°F
Kennebunkport
98°F
SE 14 mph
Feels like: 98°F
Precip: 0%
World Resorts USA Kennebunkport Weather

Kennebunkport Sea Water Temperature

Current Sea Water Temperature:
+68.2°F
Maximum Sea Water Temperature in July: 72.6°F
Minimum Sea Water Temperature in July: 57.2°F
Average water temperature in July: 64.9°F

Sea Water Temperature for the Last 10 Days:

July 15 68.2°F July 10 67.0°F
July 14 68.4°F July 09 65.6°F
July 13 68.4°F July 08 65.2°F
July 12 67.2°F July 07 65.4°F
July 11 67.6°F July 06 64.8°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Kennebunkport was 65.7°F. The maximum and minimum values were 63.6°F and 69.4°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Kennebunkport was 66.2°F. The maximum and minimum values were 64.2°F and 68.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Kennebunkport was 63.5°F. The maximum and minimum values were 60.8°F and 65.6°F respectively.

Best Time to Visit Kennebunkport
The most sunny months:
November 15 days
October 14 days
September 14 days
The most warm months:
July 79.8 °F
August 78.3 °F
June 74.2 °F
Warmest sea temperature:
August 67.5 °F
July 64.8 °F
September 63.9 °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
Boston +94
Chicago +88
Hawaii +80
Houston +90
Las Vegas +120
Los Angeles +106
Maui +76
Miami +100
Myrtle Beach +96
New York +114
San Diego +96
San Francisco +76
Santa Monica +84
Sarasota +102
Tampa +100
24 Hours Weather Forecast
Kennebunkport
Local time: 14:18
15 jul, wednesday
1500 98°F
SE
14 mph
1800 92°F
SE
13 mph
2100 80°F
SE
5 mph
16 jul, thursday
0000 74°F
E
6 mph
0300 68°F
E
7 mph
0600 66°F
E
7 mph
0900 80°F
E
9 mph
1200 86°F
E
14 mph