Last updated: August 21, 2025
Experience the unique climate of San Pedro de Atacama, Chile in July, where daytime temperatures can reach a pleasant 24°C (75°F), offering a warm escape in the heart of the desert. As the sun sets, temperatures can drop to a chilly -4°C (25°F), making warm attire essential for stargazing under the clear, crisp night sky. With an average temperature of 11°C (51°F) and an impressively low precipitation rate of only 1 mm (0.1 in), you can expect zero rainy days throughout the month. Enjoy comfortable humidity levels around 51%, creating a dry yet refreshing atmosphere perfect for exploration and adventure.
In July, San Pedro de Atacama experiences its coldest temperatures of the year, with minimums dropping to -4°C (25°F). The average temperature hovers around 11°C (51°F), while the daytime highs reach a comfortable 24°C (75°F). This month marks a significant transition, as temperatures steadily decline from the warmer months of December through March, where averages consistently flirt with the high teens and low twenties. The chill of winter is palpable, especially in the nights, yet the sun-drenched days still provide a pleasant escape from the cold. Overall, while July may bring lower temperatures, it also invites adventurers to experience the stunning landscapes of the Atacama Desert under a crisp, brilliantly clear sky.
In July, San Pedro de Atacama experiences a notable dip in precipitation, with a mere 1 mm recorded, equivalent to just 0.1 inches. This month continues a trend of minimal rainfall that starts in late spring and persists through winter, with July itself seeing no rainy days. As winter settles in, the region's dry climate becomes even more pronounced, marking a stark contrast to the more humid months of January and February, which typically see the highest precipitation amounts. This sharp decline underscores the Atacama Desert's reputation as one of the driest places on Earth, where rainfall is not only scarce but also fleeting, creating a distinctive and striking landscape throughout the year.
In July, San Pedro de Atacama experiences a notable decline in humidity, dropping to 51%, making it one of the driest months of the year. This is part of a larger trend characterized by a steady decrease in humidity from the previous months, with June peaking at 52%. Following the peak of 84% in March, humidity levels have significantly diminished during the winter months, creating a stark contrast to the more humid summer season. As the arid climate resumes its dominance, July sets the stage for the upcoming drier August, which sees humidity fall even further to 43%. This seasonal shift highlights the region’s unique climatic patterns, influenced by both elevation and geography.
In July, San Pedro de Atacama experiences a very high UV Index of 9, indicating a need for caution while enjoying the region's stunning landscapes. This month, the burn time remains consistent at 15 minutes, similar to the preceding months of May and June. The trend shows a slight decrease from the extreme levels seen in the summer months, yet the intensity is still substantial. As we transition into August, the UV levels are projected to rise again, jumping back to extreme. Therefore, visitors should remain vigilant and protect their skin, especially when exploring the area's breathtaking outdoor attractions. For detailed insights into UV exposure, check out the San Pedro de Atacama UV Index.
UV Risk Categories
July in San Pedro de Atacama, Chile, enjoys a noteworthy 320 hours of sunshine, maintaining a vibrant summer feel amidst the stark desert landscape. This month typically showcases a blend of clear skies and warm temperatures, ensuring plenty of opportunities for outdoor exploration. Following the trend of diminishing daylight hours observed from January to June, July marks a slight rebound in sunlight, a precursor to the even sunnier months ahead. As the year progresses, we see a gradual increase, notably in August and September, where daylight further extends, providing a perfect backdrop for stargazing and adventure in this stunning region. The consistent sunshine not only enhances the scenic beauty but also invigorates the spirit, making San Pedro de Atacama a captivating destination year-round.
In July, San Pedro de Atacama enjoys a healthy 77% chance of sunny weather, benefiting from the region's characteristic dry climate. While this marks a slight dip from the higher probabilities seen in the spring months of April (86%) and May (78%), it still assures sun-seekers plenty of bright days. Interestingly, the likelihood of sunshine begins a steady upward trend in late winter, peaking at 91% in August before gradually descending into the milder sunny spells of October and beyond. This makes July a delightful time to experience the scenic beauty of the desert, with comfortably warm days and clear skies that invite exploration.
In San Pedro de Atacama, Chile, July marks a month of consistent 10 hours of daylight, echoing the trend established in the preceding month of June. This period signals a gentle transition as the days begin to lengthen gradually with the approach of spring in the Southern Hemisphere. The daylight hours are notably shorter than the vibrant 13 hours experienced in January and November, yet they remain relatively stable compared to the fluctuations observed in the earlier months. As August arrives, daylight will increase to 11 hours, hinting at the gradual return of longer days and warmer weather, inviting visitors to experience the stunning landscapes under the Chilean sun.
In July, San Pedro de Atacama experiences an average wind speed of 2.9 m/s (7 mph), reflecting a general trend of increasing winds as the year progresses. Following the gentle breezes of early summer months like January and February, which see consistent speeds of 2.4 m/s (5 mph), the wind picks up gradually during the colder months. By June, it reaches 3.2 m/s (7 mph), and July maintains this lively pace, setting the stage for a refreshing winter atmosphere. As August and September return to a slightly cooler average of 2.9 m/s, this steady rhythm of the winds underscores the region's unique climate, making a visit during this time an invigorating experience amidst the stunning desert landscapes.
Weather in San Pedro de Atacama varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in San Pedro de Atacama, focusing on differences in temperature, rainfall, humidity, and UV levels.
The weather in July and January presents a striking contrast. July's temperatures range from a chilly minimum of -4°C (25°F) to a comfortable maximum of 24°C (75°F), with an average of 11°C (51°F). In this month, the region experiences almost no precipitation, with just 1 mm (0.1 in) and humidity at a moderate 51%. In stark comparison, January enjoys much warmer conditions, with temperatures starting at a minimum of 9°C (49°F) and reaching a maximum of 30°C (87°F), averaging 19°C (66°F). January also sees more precipitation, totaling 26 mm (1.0 in) over five days, and higher humidity levels of 75%. For more detailed information on January weather, you can visit San Pedro de Atacama weather in January.
When comparing the weather in July and February, there is a notable contrast in both temperature and humidity. July features cooler temperatures, with a minimum of -4°C (25°F) and an average of 11°C (51°F), peaking at a maximum of 24°C (75°F). In stark contrast, February boasts milder conditions, with temperatures ranging from a minimum of 8°C (47°F) to an average of 18°C (65°F), reaching highs of 31°C (88°F). Additionally, February experiences significantly more precipitation, totaling 54 mm (2.1 in) over 7 days, while July remains dry with just 1 mm (0.1 in) of precipitation and 0 rainy days. The higher humidity in February at 81% compared to July's 51% further emphasizes the difference in the overall climate during these months. For more detailed information, check out San Pedro de Atacama weather in February.
In comparing the weather of July and March, it is evident that March is significantly warmer and more humid. July experiences lower temperatures, with a minimum of -4°C (25°F) and an average of just 11°C (51°F), while March boasts milder conditions, showing a minimum of 7°C (45°F) and an average of 18°C (64°F). Precipitation is more prevalent in March, with 11 mm (0.4 in) falling over two days, compared to July's dry spell with only 1 mm (0.1 in) and no rainy days at all. Additionally, March has a much higher humidity level at 84%, compared to July's 51%. For more detailed information, you can check San Pedro de Atacama weather in March.
In comparing the weather of July and April, July exhibits cooler temperatures with a minimum of -4°C (25°F) and a maximum of 24°C (75°F), resulting in an average of 11°C (51°F). In contrast, April enjoys a milder climate with a minimum of 2°C (36°F), an average of 16°C (60°F), and a maximum of 28°C (83°F). While July has negligible precipitation of only 1 mm (0.1 in) over 0 days, April experiences slightly more moisture, with 4 mm (0.2 in) also occurring over 0 days. Additionally, the humidity in July stands at 51%, compared to a higher level of 71% in April, making April feel more humid and warmer overall. For more details about April weather, you can check San Pedro de Atacama weather in April.
In comparing the weather of July and May, July presents cooler temperatures with a minimum of -4°C (25°F) and an average of 11°C (51°F), while May enjoys slightly warmer conditions, boasting a minimum of -1°C (31°F) and an average of 12°C (54°F). The maximum temperatures in both months are similar, with July peaking at 24°C (75°F) and May reaching 25°C (77°F). Precipitation is notably lower in July, with no recorded rainy days and just 1 mm (0.1 in) of rain, compared to May, which experiences 3 mm (0.1 in) over one day. Additionally, humidity is higher in May at 60%, compared to July's 51%. For a more detailed overview of conditions specific to May, you can visit San Pedro de Atacama weather in May.
In comparing the weather of July and June, both months exhibit similar high temperatures, with July experiencing a max of 24°C (75°F) and June peaking at 24°C (76°F). However, July's average temperature is slightly higher, sitting at 11°C (51°F) compared to June's 10°C (51°F). Notably, July is drier with only 1 mm (0.1 in) of precipitation, whereas June sees 6 mm (0.2 in) of rainfall, although both months recorded no rainy days. Humidity levels are relatively close, with July at 51% and June slightly higher at 52%. For a deeper dive into the specific climate conditions of June, visit San Pedro de Atacama weather in June.
In July, the weather features a minimum temperature of -4°C (25°F) and an average of 11°C (51°F), peaking at a comfortable maximum of 24°C (75°F). With just 1 mm of precipitation and no rainy days, the humidity sits at a moderate 51%. On the other hand, August brings slightly warmer conditions, with a minimum of -2°C (29°F) and a similar average of 11°C (53°F), reaching a maximum of 25°C (78°F). Notably, August experiences a bit more moisture, with precipitation totaling 6 mm (0.2 in), yet still no rainy days, and a decrease in humidity to 43%. For those interested in more details, here’s a link to San Pedro de Atacama weather in August.
In July, the weather features a minimum temperature of -4°C (25°F) and an average of 11°C (51°F), reaching a pleasant maximum of 24°C (75°F). Notably, there is minimal precipitation with 1 mm recorded over the month and a humidity level of 51%. In contrast, September offers slightly warmer temperatures, with a minimum of 0°C (32°F), an average of 15°C (59°F), and a maximum of 28°C (82°F). Like July, September also experiences negligible precipitation at just 1 mm, though there are no rainy days and humidity remains low at 49%. For more detailed insights, you can check San Pedro de Atacama weather in September.
In July, the weather in San Pedro de Atacama is characterized by a significant temperature range, with minimums dropping to -4°C (25°F) and maximums reaching 24°C (75°F). The average temperature sits comfortably at 11°C (51°F), and with very little precipitation recorded (only 1 mm), the dryness is complemented by a humidity level of 51%.
Contrastingly, October offers warmer conditions, as temperatures range from a minimum of 0°C (33°F) to a maximum of 29°C (84°F), with an average of 17°C (62°F). Like July, October sees negligible precipitation, recorded at 0 mm, and a slightly lower humidity of 49%. These factors contribute to a more temperate atmosphere, making October an inviting time to explore the area. For more detailed insights, visit San Pedro de Atacama weather in October.
In comparing the weather of July and November, July is characterized by cooler temperatures with a minimum of -4°C (25°F) and a maximum of 24°C (75°F), while November offers a more moderate range with a minimum of 4°C (39°F) and a maximum that reaches 30°C (86°F). Both months experience minimal precipitation—July records only 1 mm (0.1 in), while November sees none at all—and humidity levels remain relatively close, with July at 51% and November slightly lower at 47%. For those interested in more specific details about November weather, you can check San Pedro de Atacama weather in November.
In July, San Pedro de Atacama experiences significantly cooler temperatures, ranging from a minimum of -4°C (25°F) to a maximum of 24°C (75°F), with an average of 11°C (51°F). The month sees very low precipitation, with just 1 mm recorded over zero days, and humidity levels hover around 51%. In contrast, December presents warmer conditions, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 32°C (90°F) and an average of 19°C (66°F). While precipitation remains minimal at 6 mm over just one day, humidity is slightly higher at 53%. For a detailed look at the weather in December, visit San Pedro de Atacama weather in December.
In July, San Pedro de Atacama experiences a refreshing winter season, marked by mild days and chilly nights. While temperatures remain comfortable during the day, dipping significantly at night showcases the region's high desert climate. With nearly no precipitation, this month stands out as one of the driest, allowing for clear skies that further enhance the stunning starry nights. The 51% humidity level adds a slight chill, making it a perfect time for visitors to explore the breathtaking landscapes without the heat of summer. For more insights on weather patterns throughout the year, check out the San Pedro de Atacama Climate.