Climate guide for Salar de Uyuni, Bolivia

Best Time to Visit
Salar de Uyuni

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01 · Bolivia

About Salar de Uyuni

May-October for dry flats, January-March for mirrors is the sweet spot: 4x4 across hexagonal flats, photograph reflections in wet season, and visit Isla Incahuasi. Dry cold nights and bright days define classic salt-flat expeditions.

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Did you know?

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Travel Tips

01Altitude First
Uyuni sits around 3,650 m. Spend a night acclimatising before multi-day jeep tours, drink water, avoid heavy alcohol, and tell your driver if you feel severe altitude symptoms.
02Choose Tour Length Wisely
A one-day trip covers the salt flat and Incahuasi; three-day tours reach coloured lagoons and geysers toward the Chile border. Inspect vehicles and confirm group size, meals, and sleeping bags before paying.
03Wet vs Dry Season Optics
Dec-April can create the mirror effect but flood some tracks; May-November offers reliable driving and hexagonal salt patterns. Bring sunglasses, sunscreen, and warm layers for freezing nights year-round.
04Cash & Basic Facilities
Bring bolivianos in cash; card acceptance is limited. Salt hotels and basic hostels have shared bathrooms and scarce hot water - pack toilet paper, a headlamp, and realistic expectations for comfort.

Things to do in Salar de Uyuni

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

When to visit Salar de Uyuni: the short answer

Plan Salar de Uyuni for November, with December, January close behind — the stretch with the most usable temperatures and the fewest lost days to rain: November averages 11°C with 32 mm of rain and about 30 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are June, July. If budget matters more than perfect weather, May is the strongest of the low-rate months at 7.6/10.

Across the year Salar de Uyuni swings from 3°C in June to 13°C in January, a 10-degree spread, while rainfall ranges from 0 mm in June to 68 mm in February. In short, Salar de Uyuni is not equally good year-round — the gap between its best and worst month is 3.4 points on the same 10-point scale.

Warmest month: January (13°C). Coolest: June (3°C). Driest: June (0 mm). Wettest: February (68 mm).

Salar de Uyuni month by month

January ranks 3rd of 12 for Salar de Uyuni — one of the best windows

Best window · 9.6/10

Temperatures hover around 13°C (55°F) — the kind of month where neither heat nor cold forces the schedule.

Budget for roughly 56 mm of rain this month — a flexible day or two helps — with about 31 days with 6+ hours of sunshine and 13.1 hours of daylight to work around it.

On our climate-comfort scale this is one of the strongest months of the year for Salar de Uyuni at 9.6/10 (3rd of 12), just behind November at 9.8/10.

Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer, footwear you can get muddy.

February ranks 5th of 12 for Salar de Uyuni — one of the best windows

Best window · 9.3/10

Expect 12°C (53°F) in February. A good month for city streets, viewpoints and long meals; leave swimming for another season.

Budget for roughly 68 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 12.7 hours of daylight to work around it.

On our climate-comfort scale this is one of the strongest months of the year for Salar de Uyuni at 9.3/10 (5th of 12), just behind November at 9.8/10.

Expect peak pricing, and crowds are moderate.

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

March is one of the strongest months in Salar de Uyuni (4th)

Best window · 9.4/10

March averages 11°C (52°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Expect 42 mm of rain — occasional showers rather than washed-out days — alongside about 31 days with 6+ hours of sunshine and 12.1 daylight hours.

A 9.4/10 puts this among the year's best months in Salar de Uyuni (4th of 12); only November scores higher, at 9.8/10.

Plan for peak pricing, with crowds are moderate.

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

April in Salar de Uyuni — one of the year's strongest windows (7th)

Best window · 9/10

Expect 8°C (47°F) in April. A good month for city streets, viewpoints and long meals; leave swimming for another season.

At just 7 mm for the month, rain will not shape your plans; you get about 25 days with 6+ hours of sunshine and 11.5 hours of daylight.

On our climate-comfort scale this is one of the strongest months of the year for Salar de Uyuni at 9/10 (7th of 12), just behind November at 9.8/10.

Expect mid-season pricing, and crowds are moderate.

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

May in Salar de Uyuni — reliably good (9th best month)

Good · 7.6/10

May averages 6°C (42°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rain is a non-issue at 2 mm for the month, with about 15 days with 6+ hours of sunshine and 11 hours of daylight to work with.

It scores 7.6/10 here, 9th of 12 months, against 9.8/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination.

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

Flexible dates? November scores 2.2 points higher here — enough to change the trip.

June in Salar de Uyuni: mixed conditions, plan around the weather

Trade-offs · 6.4/10

At 3°C (38°F) this is proper winter weather in June: layer up and split the day between outdoor highlights and indoor stops.

At just 0 mm for the month, rain will not shape your plans; you get about 9 days with 6+ hours of sunshine and 10.8 hours of daylight.

That is 6.4/10 on the same scale — 12th of 12 months, versus 9.8/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, footwear you can get muddy.

If your dates are flexible, November is materially better in Salar de Uyuni — 3.4 points higher on the same scale.

July in Salar de Uyuni — workable with trade-offs

Trade-offs · 6.5/10

Expect 4°C (39°F) in July. A good month for city streets, viewpoints and long meals; leave swimming for another season.

At just 0 mm for the month, rain will not shape your plans; you get about 9 days with 6+ hours of sunshine and 10.9 hours of daylight.

That is 6.5/10 on the same scale — 11th of 12 months, versus 9.8/10 for the best month here.

Expect low-season pricing, and crowds are light for this destination.

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

If your dates are flexible, November is materially better in Salar de Uyuni — 3.3 points higher on the same scale.

August in Salar de Uyuni: strong conditions, 10th of 12

Good · 7/10

August averages 5°C (40°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rain is a non-issue at 0 mm for the month, with about 14 days with 6+ hours of sunshine and 11.3 hours of daylight to work with.

It scores 7/10 here, 10th of 12 months, against 9.8/10 in the destination's best month.

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

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

Flexible dates? November scores 2.8 points higher here — enough to change the trip.

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

Good · 8.3/10

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.

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

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

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

October is one of the strongest months in Salar de Uyuni (6th)

Best window · 9.1/10

Expect 9°C (49°F) in October. A good month for city streets, viewpoints and long meals; leave swimming for another season.

With around 16 mm of rain, any showers tend to pass through rather than settle in; about 26 days with 6+ hours of sunshine and 12.5 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Salar de Uyuni at 9.1/10 (6th of 12), just behind November at 9.8/10.

Expect mid-season pricing, and crowds are moderate.

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

November in Salar de Uyuni — the year's strongest window

Best window · 9.8/10

Expect 11°C (52°F) in November. A good month for city streets, viewpoints and long meals; leave swimming for another season.

With around 32 mm of rain, any showers tend to pass through rather than settle in; about 30 days with 6+ hours of sunshine and 13 hours of daylight fill the rest.

On our climate-comfort scale this is the top-ranked month of the year for Salar de Uyuni at 9.8/10 — the reference point every other month on this page is measured against.

Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

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

December is one of the strongest months in Salar de Uyuni (2nd)

Best window · 9.7/10

December averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 47 mm, so plan one flexible day in three; you still get about 31 days with 6+ hours of sunshine and 13.2 hours of daylight.

A 9.7/10 puts this among the year's best months in Salar de Uyuni (2nd of 12); only November scores higher, at 9.8/10.

Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer, footwear you can get muddy.

FAQ

Frequently asked

When is the best time to visit Salar de Uyuni, Bolivia?
In Ideal Weather mode, the best months to visit Salar de Uyuni are November, December, January, March, February, October. November is the single peak month with an Ideal Weather score of 9.8/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Salar de Uyuni year-round?
Salar de Uyuni has a climate profile suited to nature and wildlife travel. Average monthly temperatures range from 3°C in June to 13°C in January, with Ideal Weather scores between 6.4 and 9.8 out of 10.
Which months should I avoid in Salar de Uyuni?
The lowest Ideal Weather-scoring months in Salar de Uyuni are June (6.4/10), July (6.5/10), August (7.0/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Salar de Uyuni?
February is the wettest month in Salar de Uyuni, averaging about 68 mm of rainfall. June is the driest, at roughly 0 mm.
Which is the sunniest month in Salar de Uyuni?
January sees the most sun in Salar de Uyuni, with about 31 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Salar de Uyuni a good destination for nature and wildlife travel?
Salar de Uyuni is well suited to nature and wildlife travel. Its highest Ideal Weather window (November, December, January, March, February, October) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Salar de Uyuni calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Salar de Uyuni: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for nature and wildlife travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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