Uyuni is rarely comfortable to be outside at midday. It comes closest in late November, and even then it is often wet. For walking, any time of year works. Sunbathing weather is not what it offers.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
Sun is not what Uyuni is for: the Sunbathing rating tops out at 11, mostly because it is too cool. The clearest skies come in August, when the sky is typically 14% covered at midday (almost cloudless).
Uyuni never quite rates Good for being outside. It comes closest in late November, at 50, mostly because it is often wet. The weakest stretch is from late May to mid August, when it drops to 15, mostly because it is too cold.
For walking, Uyuni rates Good or better all year. It is at its best in mid April, at 78.
The year, measured
The average temperature in Uyuni over the whole year is 14°C. November is the hottest month, with highs of about 21°C; July is the coldest, with lows of about 3°C. The rainy (wet) season in Uyuni runs from September to April, peaking in January with a 61% chance of rain on a given day. The dry season is May to August; June is the driest month, at 14%. Winds in Uyuni are highest in September, averaging 3.9 m/s (14 km/h), and lightest in February, at 3.3 m/s (12 km/h). The prevailing wind is from the NW. The clearest skies in Uyuni come in August, when the sky is typically 15% covered; February is the cloudiest month, at 62%.
Month by month Uyuni climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 20°C | 11°C | 17°C | 61% | 60% | 3.4 m/s | 40 | 8 | 69 |
| February | 19°C | 12°C | 17°C | 54% | 62% | 3.3 m/s | 40 | 8 | 71 |
| March | 19°C | 11°C | 16°C | 48% | 53% | 3.4 m/s | 43 | 7 | 73 |
| April | 19°C | 8°C | 16°C | 43% | 36% | 3.4 m/s | 42 | 6 | 75 |
| May | 18°C | 5°C | 14°C | 20% | 26% | 3.3 m/s | 29 | 3 | 74 |
| June | 16°C | 3°C | 11°C | 14% | 20% | 3.4 m/s | 17 | 1 | 62 |
| July | 16°C | 3°C | 12°C | 20% | 18% | 3.4 m/s | 19 | 2 | 66 |
| August | 17°C | 3°C | 12°C | 24% | 15% | 3.8 m/s | 20 | 3 | 65 |
| September | 20°C | 7°C | 15°C | 44% | 28% | 3.9 m/s | 29 | 6 | 71 |
| October | 21°C | 9°C | 17°C | 44% | 37% | 3.8 m/s | 39 | 8 | 73 |
| November | 21°C | 11°C | 17°C | 49% | 46% | 3.8 m/s | 45 | 9 | 73 |
| December | 21°C | 12°C | 17°C | 59% | 54% | 3.6 m/s | 41 | 9 | 70 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Uyuni weather by season
Year round, Uyuni has days of about 16°C at their warmest in June, its coolest month, and 21°C in November, its warmest; the coolest hours of the day run from 3°C to 12°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around January and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Uyuni weather in winterJune to August
Winter in Uyuni has typical daily highs of about 16°C and lows of about 3°C, with a 20% chance of rain on a given day.
Uyuni weather in springSeptember to November
Spring in Uyuni has typical daily highs of about 21°C and lows of about 9°C, with a 46% chance of rain on a given day.
Uyuni weather in summerDecember to February
Summer in Uyuni has typical daily highs of about 20°C and lows of about 12°C, with a 58% chance of rain on a given day.
Uyuni weather in autumnMarch to May
Autumn in Uyuni has typical daily highs of about 19°C and lows of about 8°C, with a 37% chance of rain on a given day.
When is the rainy season in Uyuni?
The rainy (wet) season in Uyuni runs from September to April, peaking in January with a 61% chance of rain on a given day. The dry season is May to August; June is the driest month, at 14%.
What time of year is Uyuni windiest?
Winds in Uyuni are highest in September, averaging 3.9 m/s (14 km/h), and lightest in February, at 3.3 m/s (12 km/h). The prevailing wind is from the NW.
What is the average temperature in Uyuni year round?
The average temperature in Uyuni over the whole year is 14°C. November is the hottest month, with highs of about 21°C; July is the coldest, with lows of about 3°C.
Where to go instead in mid June, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.