I frequently look at the MetO data (available at
weather.noaa.gov/pub/fax/PTUK21.TIF) but get a bit irritated by the
frequent errors in the isotherms, though the current one isn't bad.

www.a1surf.com/surfcheck-watertemp.html seems to use the same data, but
do it better. It's much prettier as well

Todays Max 18.5.

Graham
Penzance