Current sea water temperature:
+69.3°F
| Minimum sea water temperature in September: | 74.5°F |
| Maximum sea water temperature in September: | 62.1°F |
| Average sea water temperature in September: | 69.1°F |
| more information | |
14 days
forecast
forecast
| Dennis Port |
monthly
weather
weather
| Dennis Port |
Sea water temperature for the last 10 days:
| September 19 | 69.3°F | September 14 | 70.3°F |
| September 18 | 70.0°F | September 13 | 70.0°F |
| September 17 | 69.4°F | September 12 | 71.6°F |
| September 16 | 69.6°F | September 11 | 71.1°F |
| September 15 | 70.2°F | September 10 | 69.1°F |
Monthly sea water temperature, °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:
2026
2025
2024
The average sea water temperature in August of 2026 was 73.4°F. The highest and lowest sea temperatures during the month were 77.4°F and 70.3°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 71.9°F. The highest and lowest sea temperatures during the month were 74.1°F and 69.3°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 70.6°F. The highest and lowest sea temperatures during the month were 73.4°F and 69.1°F.
current
weather
weather
| Dennis Port |
weather in
September
September
| Dennis Port |
Best time for vacation in Dennis Port
Dennis Port on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Dennis Port
Local time: 05:19
September 19, saturday
0600
59°F
SW
16 mph
16 mph
0900
59°F
SW
15 mph
15 mph
1200
59°F
SW
14 mph
14 mph
1500
59°F
SW
11 mph
11 mph
1800
57°F
SW
7 mph
7 mph
2100
54°F
W
6 mph
6 mph
September 20, sunday
0000
54°F
NW
7 mph
7 mph
0300
54°F
NW
6 mph
6 mph
