San Clemente water temperature

Typically about 71° in August — refreshing.

from the offshore buoy off San Onofre, about 6 miles away

refreshing

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

The year at a glance

Swimmable from August through September.

swimmable 50° 60° 70° 80° 71° 59° JFMAMJJASOND January: typically 60° — brisk February: typically 59° — brisk March: typically 59° — brisk April: typically 60° — brisk May: typically 63° — brisk June: typically 66° — refreshing July: typically 69° — refreshing August: typically 71° — refreshing September: typically 70° — refreshing October: typically 67° — refreshing November: typically 64° — brisk December: typically 62° — brisk

Month by month

Month Typical Feels
January 60° brisk
February 59° brisk
March 59° brisk
April 60° brisk
May 63° brisk
June 66° refreshing
July 69° refreshing
August 71° refreshing
September 70° refreshing
October 67° refreshing
November 64° brisk
December 62° brisk

About this reading

The reading comes from the offshore buoy off San Onofre riding about 6 miles out; the surf zone usually reads close to it, though sun-warmed shallows can run warmer on calm afternoons.

Reading from the offshore buoy off San Onofre, about 6 miles away.

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