The highest day temperature in March 2024 was 52°F. The lowest night temperature was 17°F. The average values for day and night temperatures during March were 41.3°F и 32.9°F respectivly.

The average sea surface temperature in March 2024 for Portsmouth was 39.3°F. The maximum and minimum values were 38.2°F and 40.6°F respectively.

Most of the days in March are gloomy but you can also expect sunny days.

Precipitation total in March for Portsmouth is 1.4 in.

The average wind speed in March is 10.0 mph. It makes March the most windy month of the year for Portsmouth.

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 Portsmouth in March is 5.9 hours.