Dewey Beach water temperature

Typically about 72° in August — perfect.

from the buoy just off Bethany Beach, about 10 miles away

perfect

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

The year at a glance

Swimmable from July through September.

swimmable 30° 40° 50° 60° 70° 80° 73° 42° JFMAMJJASOND January: typically 42° — brisk February: typically 42° — brisk March: typically 46° — brisk April: typically 52° — brisk May: typically 60° — brisk June: typically 67° — refreshing July: typically 72° — perfect August: typically 72° — perfect September: typically 73° — perfect October: typically 66° — refreshing November: typically 57° — brisk December: typically 47° — brisk

Month by month

Month Typical Feels
January 42° brisk
February 42° brisk
March 46° brisk
April 52° brisk
May 60° brisk
June 67° refreshing
July 72° perfect
August 72° perfect
September 73° perfect
October 66° refreshing
November 57° brisk
December 47° brisk

About this reading

The reading comes from the buoy just off Bethany Beach, just off the coast.

Reading from the buoy just off Bethany Beach, about 10 miles away.

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