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Contents
- The climate of San Pedro de Atacama
- The best time to visit San Pedro de Atacama
- The worst time to visit San Pedro de Atacama
- Spring weather in San Pedro de Atacama
- Summer weather in San Pedro de Atacama
- Autumn weather in San Pedro de Atacama
- Winter weather in San Pedro de Atacama
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
The climate of San Pedro de Atacama
San Pedro de Atacama, located in Chile, boasts of a BWk - Mid-latitude desert climate, as classified by Köppen. Expect moderate temperatures throughout the year, though not what one would typically associate with desert extremes. The shift in temperatures displays a pattern, with lows of 0.3°C (32.5°F) recorded in July and highs of 20.6°C (69.1°F) observed during January and December.
Rainfall is a rarity, being primarily focused between January and February with rates of 21mm (0.83") to 23mm (0.91"). March brings a drastic drop in rainfall at only 5mm (0.2") and there is almost no rainfall to be seen from April to December, with the exception of slight showers in August. Snowfall registers in the winter months of June to August, totalizing to 8mm (0.31"). The relative humidity levels present minor fluctuations, hovering between 21% in October to 46% in February.
Visitors should not underestimate the desert’s propensity for solar exposure. The longest daylight period, 13.5 hours, happens in December while July offers the least at 10.7 hours. Sunshine hours are abundant, ranging from 9.7 hours per day in June to 10 hours per day in November. The UV index is consistently at 4 throughout the year underlining the need for sunblock. Winters display higher cloud coverage, and pressure hovers around 1015 to 1021mb. The site enjoys unfettered visibility set consistently at 10km (6.2mi) throughout the year.
Rainfall is a rarity, being primarily focused between January and February with rates of 21mm (0.83") to 23mm (0.91"). March brings a drastic drop in rainfall at only 5mm (0.2") and there is almost no rainfall to be seen from April to December, with the exception of slight showers in August. Snowfall registers in the winter months of June to August, totalizing to 8mm (0.31"). The relative humidity levels present minor fluctuations, hovering between 21% in October to 46% in February.
Visitors should not underestimate the desert’s propensity for solar exposure. The longest daylight period, 13.5 hours, happens in December while July offers the least at 10.7 hours. Sunshine hours are abundant, ranging from 9.7 hours per day in June to 10 hours per day in November. The UV index is consistently at 4 throughout the year underlining the need for sunblock. Winters display higher cloud coverage, and pressure hovers around 1015 to 1021mb. The site enjoys unfettered visibility set consistently at 10km (6.2mi) throughout the year.
The best time to visit San Pedro de Atacama
Considering the parameters such as temperature, rainfall, and sunshine, the best time to visit San Pedro de Atacama would be from March to October. Temperature ranges between 12.2°C (54°F) to 20.1°C (68.2°F), ideal for outdoor explorations. Minimal rainfall occurs during these months and sunshine is aplenty, making it perfect for outdoor activities.
The worst time to visit San Pedro de Atacama
The months of January and February are best avoided for a visit to San Pedro de Atacama. These months observe the highest levels of rainfall, at 21mm (0.83") to 23mm (0.91"), which may pose difficulties for outdoor activities. Additionally, relative humidity is also relatively high during these months, which some may find uncomfortable.
Spring weather in San Pedro de Atacama
Spring in San Pedro de Atacama, which spans September through November, is marked by pleasant temperatures rising from 15.9°C (60.6°F) to 20.1°C (68.2°F). Virtually no rainfall graces the area during these months, amounting to less than 1mm (0.04") overall. This makes spring one of the best times to partake in outdoor activities, amidst the generous sunshine that lasts up to 10 hours a day.
Summer weather in San Pedro de Atacama
Summer, ranging from December to February, tells a story of warm temperatures from 19.8°C (67.6°F) to 20.6°C (69.1°F) and the highest rainfall of the year. December remains relatively dry, but January and February bring in 21mm (0.83") and 23mm (0.91") of rain respectively.
Autumn weather in San Pedro de Atacama
Autumn sees temperatures dwindling from 19.7°C (67.5°F) in March to 14.2°C (57.6°F) by May. Rainfall is almost non-existent during this period. Unlike the spring and summer, the area experiences minor snowfall during May, adding a different experience for visitors.
Winter weather in San Pedro de Atacama
Winters, characterized by the lowest temperatures and instances of snowfall, extend from June through August. The temperatures can drop to as low as 0.3°C (32.5°F) in July, while snowfall, though rare, is seen in June, July, and August. The total snowfall during these months comes to 8mm (0.31"), offering a distinct charm.
Weather in January
Venturing into the new year in San Pedro de Atacama, one can expect bright and warm days, a signature characteristic of this season. As the sun glows intensely, an increase in temperature becomes noticeable compared to December. Weather in January »
Weather in February
February maintains the rhythm of January's weather in San Pedro de Atacama. Slightly cooler nights offset the warm, sunny days which are a dominant characteristic of February. With an average of 12.9h of daylight, residents can enjoy ample time for outdoor activities. Weather in February »
Weather in March
Heading into March, San Pedro de Atacama sees a shift from the relatively warm months. The change in weather is remarkable, with a noticeable reduction in rainfall that lifts the ambiance from the rather damp start of the year. Night temperatures drop to a slightly chilly 8.4°C (47.1°F), offsetting the warmth experienced during the day. Weather in March »
Weather in April
The weather in San Pedro de Atacama continues to transition in April. Nights become colder, making for very refreshing early mornings. The decrease in humidity and temperature aligns with the arrival of autumn, noticeable in the evolving landscape. Weather in April »
Weather in May
May brings a notable dip in temperature in San Pedro de Atacama, heralding the onset of winter. The lunar-like landscape of the region takes on a different hue as the days get shorter and cloud cover increases. This all leads to introspective weather, perfect for indoor activities or nocturnal stargazing. Weather in May »
Weather in June
June ushers in winter in all its glory in San Pedro de Atacama. Sharp, crisp mornings and chilly nights become commonplace. As winter tightens its grip, the landscape becomes even more fascinating, offering a totally different aesthetic. Weather in June »
Weather in July
In the heart of winter, July in San Pedro de Atacama enjoys cooler temperatures and more snowfall, contributing to the exceptional beauty of the desert landscape. During this month, the average wind speed for the region slightly increases. Weather in July »
Weather in August
Moving into August, the weather in San Pedro de Atacama begins a slow transition toward spring. With it comes a slight increase in temperature, indicating the departure from the coldest months. This month is characterized by extended daylight hours, paired with increased winds sweeping across the region. Weather in August »
Weather in September
September sees the weather in San Pedro de Atacama shaking off the last vestiges of winter. The temperature begins to climb, and the decrease in glutted winds greets the arrival of Spring. Longer daylight hours inject more vigor into outdoor activities, making it ideal for exploration. Weather in September »
Weather in October
October in San Pedro de Atacama brings a significant rise in temperature, signaling the departure of spring and the upcoming arrival of summer. The increased warmth during the day brings a vibrant energy to the city. With the rising temperatures, humidity levels drop, lending to the arid and dry atmosphere that is characteristic of the region. Weather in October »
Weather in November
November's weather sets the stage for summer in San Pedro de Atacama. The warmth of the sun is strongly felt during the day, although the temperature remains comfortable. With almost 30 days worth of sunshine, this month is ideal for sunbathers and thrill-seekers alike. Weather in November »
Weather in December
In December, the weather makes full circle in San Pedro de Atacama. The heat is more pronounced during the day, and the night temperature increases slightly compared to November. This month is characterized by long daylight hours that usher in the festive mood of the holiday season. Weather in December »
Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months in San Pedro de Atacama?
San Pedro de Atacama experiences the peak of its temperatures in January and December, when the average high-temperatures rise to 20.6°C (69.1°F).
How much does it rain in San Pedro de Atacama?
Throughout the year, in San Pedro de Atacama, there are 23.5 rainfall days, and 58mm (2.28") of precipitation is accumulated.
When it does not snow in San Pedro de Atacama?
In San Pedro de Atacama, snow does not fall in January through April, August through December.
How much does it snow in San Pedro de Atacama?
Throughout the year, 8mm (0.31") of snow is accumulated.
What is the month with the highest UV index in San Pedro de Atacama?
The months with the highest UV index in San Pedro de Atacama are January through March, August through December, with an average maximum UV index of 4.
What is the most humid month in San Pedro de Atacama?
February is the most humid month in San Pedro de Atacama, with an average relative humidity of 46%.
What is the wettest month in San Pedro de Atacama?
The month with the most rainfall in San Pedro de Atacama is February, when the rain falls for 7.7 days and typically aggregates up to 23mm (0.91") of precipitation.
When is Daylight Saving Time (DST) in San Pedro de Atacama?
On Sunday, 07. April 2024, at 00:00, Daylight Saving Time ends in San Pedro de Atacama, Chile, and the time zone changes from -03 to -04. The next Daylight Saving Time starts on Sunday, 08. September 2024, at 00:00, and the time zone reverts from -04 to -03.
What is the month with the most sunshine in San Pedro de Atacama?
The months with the most sunshine are April and November, with an average of 10h of sunshine.
When is the lowest UV index in San Pedro de Atacama?
The months with the lowest UV index are April through July, with an average maximum UV index of 3.
When does it snow in San Pedro de Atacama?
Months with snowfall in San Pedro de Atacama, Chile, are May through July.
What is the month with the shortest days in San Pedro de Atacama?
The month with the shortest days in San Pedro de Atacama is June, with an average of 10h and 48min of daylight.
What is the month with the least sunshine in San Pedro de Atacama?
June has the least sunshine of the year, with an average of 9.7h of sunshine.
What month is the coldest in San Pedro de Atacama?
July is the coldest month of the year in San Pedro de Atacama, registering average temperatures as high as 12.2°C (54°F) and as low as 0.3°C (32.5°F).
When does it snow the most in San Pedro de Atacama?
The month with the most snowfall is July, when snow falls for 0.5 days and typically aggregates up to 4mm (0.16") of snow.
What is the least humid month in San Pedro de Atacama?
October is the least humid month, with an average relative humidity of 21%.
What is the driest month in San Pedro de Atacama?
In San Pedro de Atacama, Chile, rain does not fall in October and November.
When does it rain in San Pedro de Atacama?
Months with rainfall are January through September and December.
When are the longest days in San Pedro de Atacama?
The month with the longest days is December, with an average of 13h and 30min of daylight.
Average temperature
San Pedro de Atacama, Chile
The warmest months (with the highest average high temperature) are January and December (20.6°C).
The month with the lowest average high temperature is July (12.2°C).
The month with the highest average low temperature is February (9.9°C).
The coldest month (with the lowest average low temperature) is July (0.3°C).
Average pressure
San Pedro de Atacama, Chile
- Average pressure in January:
1014.9mbar - Average pressure in February:
1014.8mbar - Average pressure in March:
1016mbar - Average pressure in April:
1018mbar - Average pressure in May:
1020.1mbar - Average pressure in June:
1021.2mbar
- Average pressure in July:
1021.2mbar - Average pressure in August:
1020.3mbar - Average pressure in September:
1018.9mbar - Average pressure in October:
1017.3mbar - Average pressure in November:
1015.5mbar - Average pressure in December:
1014.7mbar
The months with the highest atmospheric pressure are June and July (1021.2mbar).
The month with the lowest atmospheric pressure is December (1014.7mbar).
Average wind speed
San Pedro de Atacama, Chile
- Average wind speed in January:
8.5km/h - Average wind speed in February:
8.1km/h - Average wind speed in March:
6.9km/h - Average wind speed in April:
6.1km/h - Average wind speed in May:
6.9km/h - Average wind speed in June:
7.3km/h
- Average wind speed in July:
7.5km/h - Average wind speed in August:
7km/h - Average wind speed in September:
7.5km/h - Average wind speed in October:
7.8km/h - Average wind speed in November:
7.8km/h - Average wind speed in December:
8.4km/h
The windiest month (with the highest average wind speed) is January (8.5km/h).
The calmest month (with the lowest average wind speed) is April (6.1km/h).
Average humidity
San Pedro de Atacama, Chile
The month with the highest relative humidity is February (46%).
The month with the lowest relative humidity is October (21%).
Average rainfall
San Pedro de Atacama, Chile
The wettest month (with the highest rainfall) is February (23mm).
The driest months (with the least rainfall) are October and November (0mm).
Average rainfall days
San Pedro de Atacama, Chile
- Average rainfall days in January:
7 days - Average rainfall days in February:
7.7 days - Average rainfall days in March:
2.8 days - Average rainfall days in April:
1.3 days - Average rainfall days in May:
0.6 days - Average rainfall days in June:
0.8 days
- Average rainfall days in July:
0.8 days - Average rainfall days in August:
0.2 days - Average rainfall days in September:
0.5 days - Average rainfall days in October:
0.2 days - Average rainfall days in November:
0.1 days - Average rainfall days in December:
1.5 days
The month with the highest number of rainy days is February (7.7 days).
The month with the least rainy days is November (0.1 days).
Average snowfall
San Pedro de Atacama, Chile
The month with the highest snowfall is July (4mm).
The months with the least snowfall are January, February, March, April, August, September, October, November and December (0mm).
Average snowfall days
San Pedro de Atacama, Chile
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0.4 days - Average snowfall days in June:
0.3 days
- Average snowfall days in July:
0.5 days - Average snowfall days in August:
0.2 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is July (0.5 days).
The months with the least snowfall days are January, February, March, September, October, November and December (0 days).
Average daylight / Average sunshine
San Pedro de Atacama, Chile
- Average daylight in January:
13h and 2min - Average daylight in February:
12h and 5min - Average daylight in March:
12h and 1min - Average daylight in April:
11h and 4min - Average daylight in May:
11h and 0min - Average daylight in June:
10h and 5min
- Average daylight in July:
10h and 5min - Average daylight in August:
11h and 2min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 4min - Average daylight in November:
13h and 1min - Average daylight in December:
13h and 3min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in January:
9h and 5min - Average sunshine in February:
9h and 5min - Average sunshine in March:
9h and 5min - Average sunshine in April:
10h and 0min - Average sunshine in May:
9h and 5min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 5min - Average sunshine in October:
9h and 5min - Average sunshine in November:
10h and 0min - Average sunshine in December:
9h and 5min
The months with the most sunshine are April and November (Average sunshine: 10h and 0min).
The month with the least sunshine is June (Average sunshine: 9h and 42min).
Average sunshine days
San Pedro de Atacama, Chile
- Average sunshine days in January:
21.3 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
27.4 days - Average sunshine days in April:
28.8 days - Average sunshine days in May:
29.6 days - Average sunshine days in June:
28.9 days
- Average sunshine days in July:
30.1 days - Average sunshine days in August:
30.5 days - Average sunshine days in September:
29.5 days - Average sunshine days in October:
30.7 days - Average sunshine days in November:
29.9 days - Average sunshine days in December:
28.5 days
The month with the most sunshine days is October (30.7 days).
The month with the least sunshine days is February (17.8 days).
Average UV index
San Pedro de Atacama, Chile
The months with the highest UV index are January, February, March, August, September, October, November and December (UV index 4).
The months with the lowest UV index are April, May, June and July (UV index 3).
Average cloud cover
San Pedro de Atacama, Chile
The month with the most cloud cover is February (Cloud cover 11).
The months with the least cloud cover are August, September and November (Cloud cover 2).
Average visibility
San Pedro de Atacama, Chile
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
