The highest day temperature in July 2024 was 93°F. The lowest night temperature was 61°F. The average values for day and night temperatures during July were 82.4°F и 67.6°F respectivly.

The average sea surface temperature in July 2024 for Portsmouth was 62.3°F. The maximum and minimum values were 57.8°F and 66.4°F respectively.

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

Precipitation total in July for Portsmouth is 1.8 in. It makes july the most rainy month of the year.

The average wind speed in July is 6.7 mph. It makes July one of the most windless months 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 July is 8.1 hours.