dont think any ride will rival switzerland this year. Rain, fog , ice, driving blizzard snow..yes , July!...my kit was sodden, my hands frozen,especially my up till now waterproof boots which were full of water. 7 hours , 300 miles ( across country, no motorways) was an epic , but one I dont want to repeat.The route de cretes was as bad....just a total foggy downpour.
My advice is stick to motorway, and stop at every service station to warm up. The inner gloves is a good idea, as is too putting yer feet in bin bags inside the boots. A bin bag taped over the boot works too. At some point any leather leaks.
I know for future summer tours, my wet weather gear will be upgraded. and heated grips fitted ! lol