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Best Time for the Salar de Uyuni & the Altiplano
Sweet spot: January, February, March — computed from NASA POWER climate normals across the route's overnight towns, balancing temperature, rainfall and daylight.
Dry season: the salt crust is drivable corner to corner and the night skies are absurd.
Rainy season floods the salar into the famous mirror — spectacular, but crossings shorten and 4x4s stick to the edges.
| Month | Temp | Rain | Daylight | |
|---|---|---|---|---|
| January | -0.5–26.2°C | 99 mm | 13.1 h | ❄ |
| February | -0.4–25.6°C | 90 mm | 12.7 h | ❄ |
| March | -3.5–24.6°C | 57 mm | 12.1 h | ❄ |
| April | -4.0–23.7°C | 20 mm | 11.5 h | ❄ |
| May | -5.4–21.4°C | 5 mm | 11.1 h | |
| June | -9.3–20.3°C | 9 mm | 10.8 h | ❄ |
| July | -7.7–20.2°C | 4 mm | 10.9 h | |
| August | -6.5–22.6°C | 4 mm | 11.3 h | |
| September | -5.4–25.2°C | 11 mm | 11.9 h | ❄ |
| October | -4.5–26.4°C | 29 mm | 12.5 h | ❄ |
| November | -3.1–26.9°C | 30 mm | 12.9 h | ❄ |
| December | -2.3–26.5°C | 78 mm | 13.2 h | ❄ |