World Resorts USA Kennebunkport Weather

Kennebunkport sea water temperature

Current sea water temperature:
+43.5°F
Minimum sea water temperature in December: 50.5°F
Maximum sea water temperature in December: 41.7°F
Average sea water temperature in December: 45.8°F

Sea water temperature for the last 10 days:

December 16 43.5°F December 11 45.1°F
December 15 44.6°F December 10 45.3°F
December 14 44.6°F December 9 45.3°F
December 13 44.4°F December 8 45.7°F
December 12 44.6°F December 7 45.9°F

When is the warmest sea in Kennebunkport?

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

Monthly Sea Temperatures in Kennebunkport, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 64.1°F. The highest and lowest sea temperatures during the month were 67.5°F and 62.2°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 63.2°F. The highest and lowest sea temperatures during the month were 68.0°F and 60.4°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 62.2°F. The highest and lowest sea temperatures during the month were 64.0°F and 59.7°F.

Best time for vacation in Kennebunkport

Sunniest months:
November 15 days
October 14 days
September 14 days
Warmest months:
July 76.8 °F
August 75.5 °F
June 71.1 °F
Warmest sea temp:
August 65.8 °F
July 63.3 °F
September 62.5 °F
Coldest months:
January 31.9 °F
February 32.5 °F
December 37.3 °F
Rainiest months:
July 3 days
April 3 days
October 3 days
Windiest months:
March 8.8 mph
November 8.4 mph
April 8.4 mph

Kennebunkport on a weather map

Kennebunkport
+18°F
E 6 mph
Feels like: +10°F
Precip.: 0%
Places in USA:
Name
°F
+25°F
+75°F
+75°F
+46°F
+54°F
+68°F
+72°F
+70°F
+23°F
+54°F
+46°F
+54°F
+52°F
+43°F
+18°F
24 Hours Forecast
Kennebunkport
Local time: 09:05
December 16, tuesday
1200
32°F
E
4 mph
1500
36°F
NE
8 mph
1800
32°F
NE
5 mph
2100
30°F
NE
9 mph
December 17, wednesday
0000
28°F
NE
11 mph
0300
27°F
NE
12 mph
0600
27°F
NE
14 mph
0900
30°F
NE
14 mph
Units of measurement: °C / °F