Weather in Dennis Port: January
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Average day temperature: | 36.7°F |
| Average night temperature: | 33.9°F | |
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Sea water temperature: | 39.6°F |
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Number of sunny days: | 8 days |
| Day length: | 9.2 - 10.0 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 1.3 in. | |
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forecast
| Dennis Port |
temperature
| Dennis Port |
Air temperature in January, °F
The highest day temperature during January of 2025 was 47°F. At the same time the lowest night temperature was 20°F. Daily and nightly averages during January were 33.8°F and 29.4°F.
Sea water temperature in Dennis Port in January, °F
The average sea water temperature in January of 2025 was 36.4°F. The highest and lowest sea temperatures during the month were 41.9°F and 33.1°F.
Mostly all days in January are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in January, in.
Precipitation total value in Dennis Port in January is 1.3 in. Other months of the year show relatively similar values.
The average wind speed value in January is 14.0 mph It makes January most 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 January is: 4.4.
Best time for vacation in Dennis Port
Dennis Port on a weather map
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