Aug 10, 2017 - 6:27 AM
in reply to Giselapina
What brings you to Switzerland and Geneva for 2 weeks? Do you have any plans already?
I would expect the weather in and around Switzerland to average around 0 degrees in January. If you go up into the mountains it will be quite a bit colder of course. You can read more about the weather in Switzerland here. Coming from Brazil you will probably want to dress very warmly for that weather. Ski coats, and maybe thermal underwear even if you aren't planning on mountain trips.
A Swiss Travel Pass is great if you plan to travel around the country a fair bit. If you are just taking a train to Geneva and staying in the Geneva area it may be overkill. You may then want to look at the Regional Pass Lake Geneva-Alps.
There are a lot of things to do in Switzerland year round, in the winter it is mostly skiing, snowshoeing, tobogganing etc. For things to do in the Geneva area click here. There are somewhat nearby mountain trips, like Mont Blanc, Rochers-De-Nayes and the Glacier 3000.
If you plan to travel by train , use the Swiss railways timetable here to plan out each trip.