Best time to visit Salar de Uyuni
Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.
How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.
Compare with another destination
Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.
Tours in Salar de Uyuni
13 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Salar de Uyuni).
- 1
Uyuni Express 3 days from Puno Copacabana and Isla del Sol - 2
Uyuni Saltflat from San Pedro de Atacama ROUNDTRIP or ONE WAY to Uyuni - 3
Uyuni Salt Flats 3 Days/ 2 Nights with English Speaking Guide - 4
Private 4-Day Uyuni Salt Flat Tour from San Pedro - 5
Salar De Uyuni (Day Trip) - Tour in Spanish - 6
Uyuni Salt Flats 3 Days/2 Night from San Pedro de Atacama - 7
Uyuni Salt Flats | Full-Day Expedition | English Guide - 8
Uyuni Salt Flats 3 Day Tour from La Paz city - 9
Uyuni Salt Flats (Day Tour) - English Speaking Guide - 10
Magical Uyuni Salt Flats: Walk on Mirrors & Capture Infinity - 11
Uyuni Salt Flats Full Day from La Paz city - 12
Uyuni Salt Flat + Death Road / 5 Day Tour from La Paz City - 13
Bolivia Adventure and Uyuni Tour Package 6D - 5N
Last refreshed 2026-08-13.
Similar climatesSan Pedro de Atacama80% · Mendoza77% · San Francisco76%
Other destinations with the most-alike year-round climate to Salar de Uyuni (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Salar de Uyuni's. Based on the 2020-2024 climatology, not this year's actual weather.
Month-by-month
| Month | Temp °C | Feels °C | Rain days | Rain h | Rain h/day | Humidity | Wind km/h | Sun h | UV | Interest | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 3–18 | 14 | 12 | 132 | 11.0 | 41% | 24 | 282 | 18 | Moderate | 7 |
| Feb | 3–17 | 13 | 12 | 127 | 10.6 | 43% | 23 | 245 | 17 | Peak | 7 |
| Mar | 3–17 | 13 | 8 | 85 | 10.6 | 41% | 21 | 261 | 15 | Peak | 8 |
| Apr | -2–16 | 11 | 0 | 3 | — | 20% | 24 | 248 | 14 | Busy | 7 |
| May | -4–13 | 7 | 0 | 1 | — | 19% | 22 | 252 | 11 | Moderate | 7 |
| Jun | -6–10 | 4 | 0 | 0 | — | 20% | 20 | 242 | 9 | Quiet | 6 |
| Jul | -5–11 | 5 | 0 | 0 | — | 16% | 20 | 252 | 9 | Quiet | 6 |
| Aug | -4–12 | 6 | 0 | 2 | — | 16% | 24 | 255 | 12 | Moderate | 7 |
| Sep | -2–16 | 9 | 0 | 5 | — | 14% | 27 | 261 | 15 | Quiet | 7 |
| Oct | -1–18 | 11 | 1 | 7 | 7.0 | 15% | 29 | 285 | 18 | Quiet | 7 |
| Nov | 0–18 | 12 | 3 | 21 | 7.0 | 19% | 29 | 281 | 19 | Quiet | 7 |
| Dec | 3–18 | 13 | 9 | 93 | 10.3 | 30% | 27 | 283 | 19 | Quiet | 7 |
UV Index in Salar de Uyuni by Month
UV index in Salar de Uyuni peaks at 19 (extreme) in November, dropping to 9 (very high) in June. January, February, March, April, May, June, July, August, September, October, November, December reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.
Best months in detail
March
8/103–17°C (feels 13°C) · 8 rain days (85h) · 261 sun hours · 41% humidity · Peak crowd · UV 15 (extreme) · sunniest 1 in 10 days reach 18 (extreme)
November
7/100–18°C (feels 12°C) · 3 rain days (21h) · 281 sun hours · 19% humidity · Quiet crowd · UV 19 (extreme)
April
7/10-2–16°C (feels 11°C) · 0 rain days (3h) · 248 sun hours · 20% humidity · Busy crowd · UV 14 (extreme)
Every month
Show the other 9 months in detail
January
7/103–18°C (feels 14°C) · 12 rain days (132h) · 282 sun hours · 41% humidity · Moderate crowd · UV 18 (extreme) · sunniest 1 in 10 days reach 20 (extreme)
February
7/103–17°C (feels 13°C) · 12 rain days (127h) · 245 sun hours · 43% humidity · Peak crowd · UV 17 (extreme) · sunniest 1 in 10 days reach 20 (extreme)
May
7/10-4–13°C (feels 7°C) · 0 rain days (1h) · 252 sun hours · 19% humidity · Moderate crowd · UV 11 (very high) · sunniest 1 in 10 days reach 12 (extreme)
June
6/10-6–10°C (feels 4°C) · 0 rain days (0h) · 242 sun hours · 20% humidity · Quiet crowd · UV 9 (very high)
July
6/10-5–11°C (feels 5°C) · 0 rain days (0h) · 252 sun hours · 16% humidity · Quiet crowd · UV 9 (very high)
August
7/10-4–12°C (feels 6°C) · 0 rain days (2h) · 255 sun hours · 16% humidity · Moderate crowd · UV 12 (extreme)
September
7/10-2–16°C (feels 9°C) · 0 rain days (5h) · 261 sun hours · 14% humidity · Quiet crowd · UV 15 (extreme) · sunniest 1 in 10 days reach 17 (extreme)
October
7/10-1–18°C (feels 11°C) · 1 rain days (7h) · 285 sun hours · 15% humidity · Quiet crowd · UV 18 (extreme) · sunniest 1 in 10 days reach 19 (extreme)
December
7/103–18°C (feels 13°C) · 9 rain days (93h) · 283 sun hours · 30% humidity · Quiet crowd · UV 19 (extreme) · sunniest 1 in 10 days reach 20 (extreme)
Frequently asked questions about visiting Salar de Uyuni
When is the best time to visit Salar de Uyuni?
March is the highest-scoring month (8/10 on the Holiday Climate Index). Typical conditions: 3–17°C (8 rainy days). The top three months by score are March, November, April.
What is the worst time to visit Salar de Uyuni?
June is the lowest-scoring month (6/10). Typical conditions: -6–10°C (0 rainy days).
When are crowds lowest in Salar de Uyuni?
Search-interest seasonality (Google Trends 2021-2025) is lowest in November and peaks in March. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.
Which months in Salar de Uyuni have good weather but fewer tourists?
May (climate 7/10, crowd index 43) and August (climate 7/10, crowd index 43) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Salar de Uyuni by month?
UV peaks at 19 (extreme) in November and is lowest in June at 9 (very high). Monthly peak values: Jan 18, Feb 17, Mar 15, Apr 14, May 11, Jun 9, Jul 9, Aug 12, Sep 15, Oct 18, Nov 19, Dec 19. January, February, March, April, May, June, July, August, September, October, November, December reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.
What is the UV index in Salar de Uyuni in November?
November is the peak UV month in Salar de Uyuni, with a daily-peak UV index of 19 (extreme). At this level, sunburn can occur in under 20 minutes on unprotected fair skin. Apply SPF 50+, wear protective clothing and a hat, and avoid direct midday sun (11:00–17:00).
How high can UV get in Salar de Uyuni on the sunniest days?
Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. December is the worst case: typical days average UV 19 (extreme), but the top 10% of days reach UV 20 (extreme) — and even higher. Months where the sunniest days routinely exceed the typical reading: January, February, March, May, September, October, December. Plan sun protection for the worst case, not the average.