May 6, 2015 - 6:21 PM
in reply to VillaFan
That is the time of year when the passes are just opening from the winter snows. I'm not sure of exactly where to get the information ( perhaps the link tat Annika gave will do it) but there does exist some kind of information on that point. And, on the approach roads to the passes, there will be a warning sign , stating whether or not the passes are open.
I thought that the Swiss Touring Club (TCS) had it on their web site, but I could not find it on my first try. (German, French, Italian only, but the information will be clear enough)