Climate guide for Salar de Uyuni, Bolivia

Salar de Uyuni in September

Weather, crowds & best time to visit

How to read the score (0–10)
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September · Bolivia

Best time to visit Salar de Uyuni in September Weather, crowds & prices

Weather in Salar de Uyuni in September

Average temperature 7°C, 1 mm of rain, about 20 days with 6+ hours of sunshine and 27% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

September score

8.3/10

Ranked #8 of 12 months

Full year for Salar de Uyuni
Avg temp
7°C
Rainfall
1 mm
Humidity
27%
Days with 6h+ sun
20
Crowd Density
Moderate Crowds
Average Expenses
$$ · Moderate Cost ($$)

September in Salar de Uyuni scores 8.3/10 for nature and wildlife travel - ranked #8 of 12. Expect around 7°C, 1 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.

Endless salt mirror under Andean sky work best in May-October for dry flats, January-March for mirrors.

September holds up well in Salar de Uyuni — 8th best month

September averages 7°C (45°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rain is a non-issue at 1 mm for the month, with about 20 days with 6+ hours of sunshine and 11.9 hours of daylight to work with.

It scores 8.3/10 here, 8th of 12 months, against 9.8/10 in the destination's best month.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, footwear you can get muddy.

Plan for mid-season pricing, with crowds are moderate.

Flexible dates? November scores 1.5 points higher here — enough to change the trip.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Salar de Uyuni in September?
In September, Salar de Uyuni averages 7°C, 1 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 8.3/10.
Is September a good time to visit Salar de Uyuni?
September earns a 8.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Salar de Uyuni in September?
Expect about 1 mm of rain in September. Average humidity is 27% and there are about 20 days with 6+ hours of sunshine.

Curated in Salar de Uyuni

Tickets & experiences

Things to do in Salar de Uyuni

Salar de Uyuni, Bolivia. Live activities and tours from GetYourGuide, matched to this destination.