Weather in Dennis Port: May
| Average day temperature: | 58.5°F | |
| Average night temperature: | 52.7°F | |
| Sea water temperature: | 54.0°F | |
| Number of sunny days: | 10 days | |
| Day length: | 14.0 - 15.0 hours | |
| Number of rainy days: | 2 days | |
| Precipitation totals: | 0.8 in. | |
| more information | ||
14 days
forecast
forecast
| Dennis Port |
sea water
temperature
temperature
| Dennis Port |
Air temperature in May, °F
Show year:
2025
2024
2023
The highest day temperature during May of 2025 was 69°F. At the same time the lowest night temperature was 44°F. Daily and nightly averages during May were 61.2°F and 53.3°F.
Sea water temperature in Dennis Port in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 54.0°F. The highest and lowest sea temperatures during the month were 58.3°F and 48.6°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Dennis Port in May is 0.8 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 11.6 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.5.
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: 23:40
December 05, friday
0000

21°F
SE
25 mph
25 mph
0300

19°F
SE
20 mph
20 mph
0600

18°F
S
12 mph
12 mph
0900

21°F
SE
4 mph
4 mph
1200

28°F
NE
6 mph
6 mph
1500

32°F
NE
11 mph
11 mph
1800

30°F
NE
8 mph
8 mph
2100

32°F
NE
6 mph
6 mph



























