Potosí in February

May through September brings dry skies and crisp mountain air—perfect for exploring without getting soaked. July temperatures hover around 15°C during the day, dropping to near freezing at night. Pack layers. The rainy season from December to March turns cobblestone streets into slip hazards and can cancel mine tours. But here's the trade-off: fewer tourists and greener landscapes. April and October sit in the sweet spot—decent weather, manageable crowds. Avoid major Bolivian holidays when everything shuts down. The Tinku festival in early May brings traditional fighting dances but also packed accommodations. Book ahead during dry season. Most travelers underestimate how cold it gets after sunset, even in summer.