Spring and autumn are the peak tourism periods, with warm temperatures and long days. The heat in July and August can be oppressive, and during Ramadan, the logistics can be awkward for visitors since many restaurants close during the day. Visas are not required for visits of up to 90 days. Fes Saïss Airport has buses and taxis to the city center. Insist city taxis use meters. The languages are Arabic and French and the currency is the dirham. ATMs are widespread. Tipping is expected—a dirham or two in a café and up to 10% in upmarket restaurants. Electricity is 220 volts and sockets take round-pin European plugs.