Uyuni Salt Flats, Bolivia

Set in dry, desert-edge country, Uyuni Salt Flats (Bolivia) is best understood through its weather data: our 2015–2024 climate record puts its peak at a 90/100 sun score in November, exactly the kind of reliability you want for a dose of dry heat and big skies.

December is the heat peak, averaging 20°C highs; June is the cool end, when nights dip to around -4°C. Rain is most likely in February, when about 51% of days see meaningful rainfall, and least likely in May (0%). No month averages 24°C highs, so this is a destination for light-jacket sunshine rather than beach heat.

The seasonal arc is clear in the data: summer averages 12°C against winter's 19°C, while rain-day odds move from 42% in winter and 9% in spring to 1% in summer and 4% through autumn. That makes autumn the statistical sweet spot (season score 84), with winter a workable second; summer is where the odds thin out.

Best months to visit Uyuni Salt Flats

The best month on record is November — a 90/100 sun score, built on 40% cloud cover and 9% rain-day odds — followed by December and October. The dependable window is wider than the podium, though: January–April and September–December all score 70 or better. At the other end, August scores just 67, the weakest month of the year.

Put against its 44 desert peers in November, it lands below the group median for sunshine, ahead of 25% of them.

Month-by-month breakdown for Uyuni Salt Flats → · More destinations for November →

The live forecast backs this up: of the next 15 days, 9 look mostly clear and none carry meaningful rain risk, in a -2–21°C band. Today's cached sun score is 87/100.