Climate guide for San Pedro de Atacama, Chile

Best Time to Visit
San Pedro de Atacama

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01 · Chile

About San Pedro de Atacama

San Pedro's dusty streets sit beside the Salar de Atacama, with the El Tatio geysers at dawn, the Moon Valley and the flamingo lagoons filling the tours. The high-altitude lakes, the Tropic of Capricorn and some of the world's clearest night skies complete the picture, and the town's adobe church marks its centre. The driest, clearest months run from April to October; summer can bring mountain rain, and altitude is a factor everywhere.

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Did you know?

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Travel Tips

01Best time & timing
Target February, January, March — that is where comfort scores peak (9.7/10). June is the weakest month at 8.0/10.
02Weather & what to pack
February averages 18°C with 2 mm of rain and about 28 days with 6+ hours of sunshine. Pack layers you can shed by midday plus one warm layer for the evening.
03Crowds & value
If budget matters, target March — 9.5/10 with lighter demand than February.

Things to do in San Pedro de Atacama

San Pedro de Atacama, Chile. Live activities and tours from GetYourGuide, matched to this destination.

When to visit San Pedro de Atacama: the short answer

Plan San Pedro de Atacama for February, with January, March close behind — the stretch with the most usable temperatures and the fewest lost days to rain: February averages 18°C with 2 mm of rain and about 28 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, June is the strongest of the low-rate months at 8/10.

Across the year San Pedro de Atacama swings from 10°C in June to 19°C in January, a 8-degree spread, while rainfall ranges from 0 mm in May to 2 mm in February. In short, San Pedro de Atacama is not equally good year-round — the gap between its best and worst month is 1.7 points on the same 10-point scale.

Warmest month: January (19°C). Coolest: June (10°C). Driest: May (0 mm). Wettest: February (2 mm).

San Pedro de Atacama month by month

January ranks 2nd of 12 for San Pedro de Atacama — one of the best windows

Best window · 9.6/10

Temperatures hover around 19°C (65°F) — the kind of month where neither heat nor cold forces the schedule.

At just 2 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 13.3 hours of daylight.

On our climate-comfort scale this is one of the strongest months of the year for San Pedro de Atacama at 9.6/10 (2nd of 12), just behind February at 9.7/10.

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, footwear you can get muddy.

February: the best month of the year in San Pedro de Atacama

Best window · 9.7/10

Temperatures hover around 18°C (64°F) — the kind of month where neither heat nor cold forces the schedule.

At just 2 mm for the month, rain will not shape your plans; you get about 28 days with 6+ hours of sunshine and 12.8 hours of daylight.

On our climate-comfort scale this is the top-ranked month of the year for San Pedro de Atacama at 9.7/10 — 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 layers you can shed by midday plus one warm layer for the evening, footwear you can get muddy.

March ranks 3rd of 12 for San Pedro de Atacama — one of the best windows

Best window · 9.5/10

March averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rain is a non-issue at 1 mm for the month, with about 31 days with 6+ hours of sunshine and 12.2 hours of daylight to work with.

A 9.5/10 puts this among the year's best months in San Pedro de Atacama (3rd of 12); only February scores higher, at 9.7/10.

Plan for peak pricing, with crowds are moderate. 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, footwear you can get muddy.

April is one of the strongest months in San Pedro de Atacama (6th)

Best window · 9/10

Temperatures hover around 15°C (58°F) — the kind of month where neither heat nor cold forces the schedule.

At just 0 mm for the month, rain will not shape your plans; you get about 30 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 San Pedro de Atacama at 9/10 (6th of 12), just behind February at 9.7/10.

Expect mid-season pricing, and crowds are moderate.

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

May ranks 8th of 12 for San Pedro de Atacama — one of the best windows

Best window · 8.8/10

May averages 12°C (53°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 24 days with 6+ hours of sunshine and 10.9 hours of daylight to work with.

A 8.8/10 puts this among the year's best months in San Pedro de Atacama (8th of 12); only February scores higher, at 9.7/10.

Figure on 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.

June in San Pedro de Atacama: strong conditions, 12th of 12

Good · 8/10

Expect 10°C (50°F) in June. 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 19 days with 6+ hours of sunshine and 10.6 hours of daylight.

That is 8/10 on the same scale — 12th of 12 months, versus 9.7/10 for the best month here.

Budget for 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, February is materially better in San Pedro de Atacama — 1.7 points higher on the same scale.

July holds up well in San Pedro de Atacama — 11th best month

Good · 8.4/10

Expect 11°C (51°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 22 days with 6+ hours of sunshine and 10.7 hours of daylight.

That is 8.4/10 on the same scale — 11th of 12 months, versus 9.7/10 for the best month here.

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.

August is one of the strongest months in San Pedro de Atacama (10th)

Best window · 8.5/10

August averages 11°C (52°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 30 days with 6+ hours of sunshine and 11.2 hours of daylight to work with.

A 8.5/10 puts this among the year's best months in San Pedro de Atacama (10th of 12); only February scores higher, at 9.7/10.

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.

September ranks 9th of 12 for San Pedro de Atacama — one of the best windows

Best window · 8.8/10

September averages 13°C (55°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rain is a non-issue at 0 mm for the month, with about 30 days with 6+ hours of sunshine and 11.9 hours of daylight to work with.

A 8.8/10 puts this among the year's best months in San Pedro de Atacama (9th of 12); only February scores higher, at 9.7/10.

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

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

October ranks 7th of 12 for San Pedro de Atacama — one of the best windows

Best window · 9/10

Temperatures hover around 15°C (59°F) — the kind of month where neither heat nor cold forces the schedule.

At just 1 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 12.5 hours of daylight.

On our climate-comfort scale this is one of the strongest months of the year for San Pedro de Atacama at 9/10 (7th of 12), just behind February at 9.7/10.

Expect mid-season pricing, and crowds are moderate.

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

November is one of the strongest months in San Pedro de Atacama (4th)

Best window · 9.3/10

Temperatures hover around 17°C (63°F) — the kind of month where neither heat nor cold forces the schedule.

At just 1 mm for the month, rain will not shape your plans; you get about 30 days with 6+ hours of sunshine and 13.1 hours of daylight.

On our climate-comfort scale this is one of the strongest months of the year for San Pedro de Atacama at 9.3/10 (4th of 12), just behind February at 9.7/10.

Expect mid-season pricing, and crowds are moderate.

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

December in San Pedro de Atacama — one of the year's strongest windows (5th)

Best window · 9.3/10

December averages 18°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rain is a non-issue at 1 mm for the month, with about 31 days with 6+ hours of sunshine and 13.4 hours of daylight to work with.

A 9.3/10 puts this among the year's best months in San Pedro de Atacama (5th of 12); only February scores higher, at 9.7/10.

Figure on peak pricing, with crowds are moderate.

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

FAQ

Frequently asked

When is the best time to visit San Pedro de Atacama, Chile?
In Ideal Weather mode, the best months to visit San Pedro de Atacama are February, January, March, November, December, April. February is the single peak month with an Ideal Weather score of 9.7/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in San Pedro de Atacama year-round?
San Pedro de Atacama has a climate profile suited to nature and wildlife travel. Average monthly temperatures range from 10°C in June to 19°C in January, with Ideal Weather scores between 8.0 and 9.7 out of 10.
Which months should I avoid in San Pedro de Atacama?
The lowest Ideal Weather-scoring months in San Pedro de Atacama are June (8.0/10), July (8.4/10), August (8.5/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in San Pedro de Atacama?
February is the wettest month in San Pedro de Atacama, averaging about 2 mm of rainfall. May is the driest, at roughly 0 mm.
Which is the sunniest month in San Pedro de Atacama?
January sees the most sun in San Pedro de Atacama, with about 31 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is San Pedro de Atacama a good destination for nature and wildlife travel?
San Pedro de Atacama is well suited to nature and wildlife travel. Its highest Ideal Weather window (February, January, March, November, December, April) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for San Pedro de Atacama calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for San Pedro de Atacama: 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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