Wallis Sands State Beach water temperature

Typically about 63° in August — brisk.

from the Portsmouth Harbor station on the Piscataqua, about 5 miles away

brisk

bath-warm 80° and up perfect 72–79° refreshing 65–71° brisk below 65° 63° typical for August

The year at a glance

Rarely reaches swimmable temperatures.

30° 40° 50° 60° 70° 63° 38° JFMAMJJASOND January: typically 40° — brisk February: typically 38° — brisk March: typically 40° — brisk April: typically 44° — brisk May: typically 52° — brisk June: typically 58° — brisk July: typically 61° — brisk August: typically 63° — brisk September: typically 62° — brisk October: typically 58° — brisk November: typically 50° — brisk December: typically 43° — brisk

Month by month

Month Typical Feels
January 40° brisk
February 38° brisk
March 40° brisk
April 44° brisk
May 52° brisk
June 58° brisk
July 61° brisk
August 63° brisk
September 62° brisk
October 58° brisk
November 50° brisk
December 43° brisk

About this reading

The Portsmouth Harbor station on the Piscataqua sits in the harbor; open-water surf can read a few degrees different.

Reading from the Portsmouth Harbor station on the Piscataqua, about 5 miles away.

Warm water says nothing about surf, rip currents, or bacteria — check local lifeguard flags and advisories.