If any feels like going for a swim in the great outdoors but you're not sure how warm the water is, you can find out the water temperatures of all the major lakes in Switzerland on meteonews.ch. I think I'll dip my toes in Lake Geneva (which is at about 20 degrees right now) this evening.

There are a few more Zurich-specific websites (including swimming pools) listed in this thread as well.

Cheers,

HeatherM

http://sospo.myswitzerland.com/home/?lang=en

and here you can to a region specific water temperature search,we're going to he Lake of Bienne obviously