The highest day temperature in March 2026 was 55°F. The lowest night temperature was 16°F. The average values for day and night temperatures during March were 42.3°F и 35.2°F respectivly.

The average sea surface temperature in March 2026 for Dennis Port was 37.7°F. The maximum and minimum values were 33.0°F and 43.2°F respectively.

You can expect various weather conditions during March. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in March for Dennis Port is 1.0 in. It makes march one of the most rainy months of the year.

The average wind speed in March is 14.0 mph. It makes March one of the most windy months of the year for Dennis Port.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Dennis Port in March is 5.7 hours.