Well today is the 26th July and there’s about 5 weeks left.
Water Temp: 17.0 ºC at the Dover buoy (10am) today, and last weeks average surface temp between Dover and France was about 16.8 ºC by the map at http://www.bsh.de/aktdat/mk/nordsee/actual.pdf
Last weekends training in Budleigh seems to have had a temp almost 0.5 ºC lower looking at the map.
Getting better but still a cold year by the look of it!

Alan.