Weather in Dennis Port: August
| Average day temperature: | 74.7°F | |
| Average night temperature: | 68.7°F | |
| Sea water temperature: | 73.0°F | |
| Number of sunny days: | 13 days | |
| Day length: | 13.2 - 14.4 hours | |
| Number of rainy days: | 1 day | |
| Precipitation totals: | 0.8 in. | |
| more information | ||
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| Dennis Port |
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| Dennis Port |
Air temperature in August, °F
The highest day temperature during August of 2025 was 83°F. At the same time the lowest night temperature was 62°F. Daily and nightly averages during August were 73.6°F and 65.8°F.
Sea water temperature in Dennis Port in August, °F
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.
Mostly all days in August are sunny but cloudy days are also possible.
Precipitation total in August, in.
Precipitation total value in Dennis Port in August is 0.8 in. Other months of the year show relatively similar values.
The average wind speed value in August is 10.0 mph It makes August lest windy month of the year.
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 August is: 8.4.
Best time for vacation in Dennis Port
Dennis Port on a weather map

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