We hit 70 and then dropped back down.

There is a web site I watch for water temp and wave height... called CDIP. It has monitoring stations at various places... a couple of which are quite local.

http://cdip.ucsd.edu/?nav=recent&sub=observed&pub=public&map_stati=1,2,3&stn=100&stream=p1&units=english&tz=PDT&xitem=dtemp

Below is a pic of the most recent temp plot. Go to the link above and it updates about every 30 min or so.