World Resorts USA Dennis Port Weather

Dennis Port sea water temperature

Current sea water temperature:
+44.4°F
Minimum sea water temperature in December: 50.9°F
Maximum sea water temperature in December: 37.6°F
Average sea water temperature in December: 44.4°F

Sea water temperature for the last 10 days:

December 4 44.4°F November 29 45.9°F
December 3 46.6°F November 28 46.8°F
December 2 45.9°F November 27 47.8°F
December 1 45.5°F November 26 47.3°F
November 30 44.8°F November 25 46.9°F

When is the warmest sea in Dennis Port?

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

Monthly Sea Temperatures in Dennis Port, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 71.4°F. The highest and lowest sea temperatures during the month were 74.5°F and 68.5°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 70.3°F. The highest and lowest sea temperatures during the month were 73.6°F and 65.7°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 68.5°F. The highest and lowest sea temperatures during the month were 71.2°F and 66.6°F.

Best time for vacation in Dennis Port

Sunniest months:
November 15 days
June 13 days
August 13 days
Warmest months:
July 75.7 °F
August 74.7 °F
September 69.3 °F
Warmest sea temp:
August 72.9 °F
July 71.9 °F
September 69.0 °F
Coldest months:
January 36.7 °F
February 37.0 °F
December 42.5 °F
Rainiest months:
January 3 days
October 3 days
April 2 days
Windiest months:
January 14.0 mph
March 13.9 mph
November 13.7 mph

Dennis Port on a weather map

Dennis Port
+21°F
SE 25 mph
Feels like: +7°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+45°F
+55°F
+70°F
+77°F
+70°F
+23°F
+57°F
+48°F
+63°F
+63°F
+46°F
+5°F
24 Hours Forecast
Dennis Port
Local time: 01:02
December 05, friday
0300
19°F
SE
20 mph
0600
18°F
S
12 mph
0900
21°F
SE
4 mph
1200
28°F
NE
6 mph
1500
32°F
NE
11 mph
1800
30°F
NE
8 mph
2100
32°F
NE
6 mph
December 06, saturday
0000
34°F
NE
5 mph
Units of measurement: °C / °F