Bolivia's diverse geography results in varied climate conditions. The Andean region, with its dry winters (May-September) and rainy summers (November-March), offers the best hiking conditions during the dry season.
The lowland tropical regions have a hot and humid climate, and hiking can be done year-round, although it can be quite rainy from November to March.
The Altiplano, home to the famous Salar de Uyuni, is cold but generally dry year-round. Hiking is most comfortable from May to November.