Jul Yodelling Festival , Frauenfeld. Jul 6-21 35th Montreux Jazz Festival. Aug 2-12 54th Locarno International Film Festival. Oct 12-15 Jazz Music Fair , Z rich. A wide range of events will take place in the city throughout November.
Informal wear is widely acceptable.
First-class restaurants, hotel dining rooms and important social occasions may warrant jackets and ties. Black tie is usually specified when required.