September Weather in San Antonio de los Cobres, Argentina

Last updated: August 21, 2025

Experience the unique climate of San Antonio de los Cobres, Argentina in September, where the temperatures range from a chilly -15°C (5°F) at night to a pleasant 21°C (71°F) during the day, averaging around 5°C (41°F). Despite the crisp air, you'll encounter a mere 5 mm (0.2 in) of precipitation over a single day, allowing for plenty of sun-drenched exploration. With humidity levels around 57%, the weather offers a refreshing experience, perfect for immersing yourself in the breathtaking landscapes of this high-altitude gem. Enjoy the vibrant natural beauty of San Antonio de los Cobres while navigating its cool and dry September days!

September Temperature in San Antonio de los Cobres

In September, San Antonio de los Cobres experiences a notable transition in temperatures, with minimums dropping to around -15°C (5°F) and a brisk average of 5°C (41°F). This shift marks the onset of the colder months, as the once mild weather begins to slip into cooler conditions. Despite the frigid mornings, the days can still bring a touch of warmth, peaking at a pleasant 21°C (71°F). As the region prepares for the chill of October, the significant drop from the summer highs earlier in the year foreshadows the increasingly cold climate that dominates the following months. This dramatic fluctuation highlights the unique climate of this high-altitude locale, emphasizing the need for layers to fully enjoy its breathtaking landscapes.

September Weather in San Antonio de los Cobres: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Antonio de los Cobres, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Antonio de los Cobres, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec494947433630323440465050
Data source: Temperature data for San Antonio de los Cobres generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in San Antonio de los Cobres

In September, San Antonio de los Cobres experiences a noticeable shift in precipitation, receiving a modest 5 mm (0.2 in) of rain over just one day. This marks a welcome increase from the dry spell that typifies the preceding months, where precipitation was almost nonexistent from May to August. Despite being a mere fraction of the rainfall seen in the peak summer months of January and February, the September drizzle hints at the onset of a more varied climatic pattern as the region transitions towards its wetter season. The significant dip in rainfall days during the winter months underscores the arid conditions prevalent in the area, making even the slightest increase in September a noteworthy event in the annual weather cycle.

September Precipitation Trends in San Antonio de los Cobres

The chart displays monthly precipitation patterns in San Antonio de los Cobres, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In San Antonio de los Cobres, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec979581161211563083
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Antonio de los Cobres

As September arrives in San Antonio de los Cobres, Argentina, humidity levels begin to rise again, reaching a comfortable 57%. This marks a notable increase from the dry months of July and August, which saw remarkably low humidity at 47% and 44%, respectively. After the peak of the humid summer months in January through March, where humidity soared above 84%, the transition into autumn brings a refreshing change. Although September is still lower than the high humidity from the early year, it signals the gradual return of moisture, setting the stage for a more moderate climate as the year progresses. Overall, the humidity levels reflect an intriguing ebb and flow, showcasing the distinct seasonal patterns that characterize this unique desert environment.

September Average Humidity in San Antonio de los Cobres

This chart illustrates the average monthly humidity levels in San Antonio de los Cobres, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in San Antonio de los Cobres is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%87%88%85%74%56%47%44%57%55%70%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Antonio de los Cobres

In September, San Antonio de los Cobres experiences a UV Index of 14, categorized as extreme, with a burn time of just 10 minutes. This marks a notable transition, as the region shifts from the intense peaks of the earlier months, yet still demands caution. The UV levels in September parallel those observed in April, indicating a sustained intensity typical for this time of year. Visitors and residents alike should remain vigilant against sun exposure during this month, ensuring proper sun protection measures are taken. To learn more about UV Index trends in the area, visit San Antonio de los Cobres UV Index.

Maximum UV Index Levels in San Antonio de los Cobres for September

The chart shows the monthly maximum UV Index (UVI) for San Antonio de los Cobres in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in San Antonio de los Cobres typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1920181410891114181922
Data source: San Antonio de los Cobres September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in San Antonio de los Cobres

As September unfolds in San Antonio de los Cobres, Argentina, the transition from winter to spring welcomes a delightful embrace of sunshine, with 349 hours of glorious daylight. This marks a slight dip from the sun-drenched months of August and precedes the robust surge into the more luminous October, which boasts 382 hours. The region experiences a gradual increase in sunlight starting from the cooler months, with March reaching its own peak at 356 hours. With each passing month, the trend showcases a comforting rise in sunlight hours, promising vibrant days ahead, as spring blankets the landscape in warmth and light. The consistent upward trajectory leading into the end of the year paints a vivid picture of sunshine’s journey through the seasons in this enchanting locale.

Monthly Sunshine Duration in San Antonio de los Cobres: September Highlighted

The September sunshine duration represents the total number of hours San Antonio de los Cobres experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec294h316h356h334h332h308h326h346h349h382h383h378h
Data source: San Antonio de los Cobres September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Antonio de los Cobres During September

In September, San Antonio de los Cobres enjoys a solid 81% chance of sunny weather, continuing a trend of increasing sunshine that begins in March and peaks in June. After a slightly lower likelihood in July and August, the sun returns with vigor, contributing to the region's warm and inviting atmosphere. As the month transitions to October, the probability of sunny days further increases to 86%, making September an ideal time for outdoor adventures and exploration in this picturesque Argentine locale. With such impressive statistics, visitors can confidently plan their itineraries under the abundant sun.

Percentage of Sunny Days in September in San Antonio de los Cobres

The chart illustrates the percentage of sunny days in San Antonio de los Cobres throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often San Antonio de los Cobres experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%53%56%76%84%91%81%89%81%86%76%35%
Data source: San Antonio de los Cobres September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Antonio de los Cobres in September

In San Antonio de los Cobres, September ushers in a sense of equilibrium in daylight, offering about 11 hours of sunlight each day—similar to the previous month, August. This month marks a transition as daytime hours begin their gradual climb toward the longer days of spring and summer. After experiencing the shortest daylight in June and July with just 10 hours, the town witnesses a return to more favorable lighting conditions, paving the way for the 12-hour days of October. As daylight lengthens, locals and visitors alike can look forward to enjoying the enchanting landscapes of this high-altitude region under a brightening sky.

Average Daylight Hours in San Antonio de los Cobres for September

The chart illustrates the variation in daylight duration in San Antonio de los Cobres throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 25m12h 52m12h 11m11h 29m10h 55m10h 38m10h 47m11h 17m11h 57m12h 39m13h 16m13h 35m
Data source: San Antonio de los Cobres daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in San Antonio de los Cobres

In September, the winds in San Antonio de los Cobres begin to pick up, marking a gentle shift as they reach an average speed of 3.2 m/s (7 mph). This uptick is part of a noticeable trend that sees the wind gradually intensifying from May onward, culminating in a peak by October, where speeds escalate to 3.6 m/s (8 mph). While the summer months experience calmer breezes, reaching a low of 1.9 m/s (4 mph) in January and December, the transition into fall heralds a fresher atmosphere, invigorated by these brisk winds. September’s slight increase not only hints at the coming seasonal changes but also enhances the region's unique charm, as visitors can feel the freshness of the air weaving through the stunning landscapes of this high-altitude gem.

Average September Wind Speed in San Antonio de los Cobres

The chart displays monthly wind speed patterns in San Antonio de los Cobres, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.92.02.22.32.93.02.72.93.2 m/s3.62.91.9
Data source: San Antonio de los Cobres September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in San Antonio de los Cobres Compares to Other Months

Weather in San Antonio de los Cobres varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Antonio de los Cobres, focusing on differences in temperature, rainfall, humidity, and UV levels.

September weather in San Antonio de los Cobres features a wide range of temperatures, with minimums dropping to -15°C (5°F) and enjoying maximums that can reach 21°C (71°F). This month typically experiences low precipitation, averaging just 5 mm (0.2 in) over a single rainy day, and a moderate humidity level of 57%. In contrast, January presents a much warmer climate, with averages ranging from a minimum of -3°C (26°F) to a maximum of 24°C (76°F). However, it also sees a significant increase in rainfall, totaling 97 mm (3.8 in) distributed over 16 days, contributing to a higher humidity of 84%. For more detailed insights, check out San Antonio de los Cobres weather in January.

In September, temperatures in the region range from a chilly minimum of -15°C (5°F) to a pleasant maximum of 21°C (71°F), with an average of 5°C (41°F). This month experiences very little precipitation, with only 5 mm (0.2 in) over a single day, and humidity levels averaging around 57%. In contrast, February brings milder temperatures, with a minimum of -3°C (26°F), an average of 9°C (49°F), and a maximum of 25°C (78°F). However, this month is significantly wetter, receiving 95 mm (3.7 in) of rain over 17 days and a higher humidity level of 87%. For a more detailed look at February weather, visit San Antonio de los Cobres weather in February.

September and March present quite contrasting weather conditions. In September, the temperatures range from a chilly -15°C (5°F) to a pleasant max of 21°C (71°F), with an average temperature of 5°C (41°F). The month experiences minimal precipitation, with only 5 mm (0.2 in) of rain falling over just one day, and the humidity level sits at 57%.

In stark contrast, March showcases milder conditions with temperatures fluctuating from a low of -7°C (20°F) to a high of 24°C (76°F), averaging around 8°C (47°F). This month is significantly wetter, receiving 81 mm (3.2 in) of precipitation over 13 days, paired with elevated humidity levels at 88%. For more details on March weather, you can check San Antonio de los Cobres weather in March.

Comparing the weather in September and April reveals notable differences. In September, temperatures range from a brisk -15°C (5°F) at night to a comfortable 21°C (71°F) during the day, with an average of 5°C (41°F). The month sees minimal precipitation, with only 5 mm (0.2 in) falling over just one day, and humidity sits at a moderate 57%. In contrast, April presents slightly milder conditions, with nighttime lows of -9°C (16°F) and daytime highs reaching 21°C (70°F), averaging around 6°C (43°F). Precipitation is significantly higher at 16 mm (0.6 in) over four days, and humidity increases to a more humid 85%. For more details on April's weather, you can check San Antonio de los Cobres weather in April.

September and May showcase contrasting weather patterns. In September, temperatures range from a minimum of -15°C (5°F) to a maximum of 21°C (71°F), with an average of 5°C (41°F). The month sees minimal precipitation at just 5 mm (0.2 in) over a single day and has a humidity level of 57%. In contrast, May experiences slightly milder temperatures, with a minimum of -11°C (12°F) and a maximum of 18°C (65°F), yielding an average of 2°C (37°F). Notably, May features even less precipitation at only 1 mm (0.1 in) and no rainy days, but carries higher humidity at 74%. These differences highlight the transitional nature of the seasons in this region. For more detailed information, you can check San Antonio de los Cobres weather in May.

In comparing the weather of September and June, we see distinct differences in temperatures and precipitation patterns. September boasts a significant increase in temperature, with a minimum of -15°C (5°F), an average of 5°C (41°F), and a maximum of 21°C (71°F). In contrast, June experiences colder temperatures, ranging from a minimum of -21°C (-5°F) to a maximum of 16°C (61°F), with an average of -1°C (31°F). While September records a slight amount of precipitation at 5 mm (0.2 in) over just one day, June remains largely dry with only 2 mm (0.1 in) and no recorded rainy days. Both months have similar humidity levels, at around 57% for September and 56% for June. For more detailed information, you can check San Antonio de los Cobres weather in June.

When comparing the weather in September and July, September boasts milder temperatures with an average of 5°C (41°F), peaking at a maximum of 21°C (71°F), while July remains colder, featuring an average of 0°C (32°F) and a maximum of 16°C (61°F). In terms of extremes, September experiences slightly lower minimum temperatures with lows reaching -15°C (5°F) compared to July's minimum of -13°C (10°F). Precipitation is minimal in both months, but September has a slightly higher level of rainfall at 5 mm (0.2 in) over just one day, whereas July records only 1 mm (0.0 in) with no rainy days at all. Humidity levels also differ slightly, with September at 57% and July at a lower 47%. For those interested in a detailed look at July weather conditions in this region, you can visit San Antonio de los Cobres weather in July.

In comparing the weather between August and September, significant differences emerge. August experiences a slightly higher minimum temperature of -12°C (10°F), while September’s temperatures drop to a minimum of -15°C (5°F). The average temperature also sees an improvement in September, rising to 5°C (41°F) compared to August’s average of 1°C (34°F). Maximum temperatures are notably warmer in September, reaching 21°C (71°F) versus 17°C (63°F) in August. Precipitation is minimal in both months, with September receiving 5 mm (0.2 in) over just one day, while August enjoys a notably drier month with only 1 mm (0.0 in) and no rainy days. Additionally, humidity levels are higher in September at 57%, compared to 44% in August. For more detailed information, you can check San Antonio de los Cobres weather in August.

September and October present a noticeable transition in weather patterns. In September, temperatures range from a chilly minimum of -15°C (5°F) to a mild maximum of 21°C (71°F), with an average of 5°C (41°F). The month sees minimal precipitation, totaling just 5 mm (0.2 in) over one day, with humidity averaging around 57%. By October, the weather warms slightly, with temperatures dipping to a minimum of -8°C (19°F) and reaching a maximum of 23°C (74°F), while the average rises to 8°C (46°F). Precipitation remains low, similar to September, at 6 mm (0.2 in) over one day, and humidity decreases slightly to 55%. For more specific insights, you can check the detailed weather for San Antonio de los Cobres weather in October.

In September, temperatures range from a chilly -15°C (5°F) at night to a pleasant 21°C (71°F) during the day, with an average temperature of 5°C (41°F). The month sees minimal precipitation, with just 5 mm (0.2 in) over a single day, and humidity levels at 57%. In contrast, November experiences milder conditions, with nighttime lows of -5°C (24°F) and daytime highs reaching up to 26°C (79°F), giving an average temperature of 10°C (50°F). However, November also brings increased precipitation, totaling 30 mm (1.2 in) over six days, and higher humidity at 70%. For more details about November weather in this region, check San Antonio de los Cobres weather in November.

In September, the weather in San Antonio de los Cobres features a wide temperature range, with minimums dropping to -15°C (5°F) and maximums reaching up to 21°C (71°F). The month sees relatively low precipitation, only about 5 mm (0.2 in) over just one day, alongside a moderate humidity level of 57%. In contrast, December brings milder temperatures, with a minimum of -3°C (26°F) and maximums soaring to 25°C (78°F), making it significantly warmer overall. However, December is much wetter, averaging 83 mm (3.3 in) of precipitation spread over 14 days, and the humidity also increases to 77%. For more detailed insights, check out this link: San Antonio de los Cobres weather in December.

Compare San Antonio de los Cobres's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in San Antonio de los Cobres

September in San Antonio de los Cobres presents a refreshing transition from the colder winter months, characterized by mild daytime temperatures and a notable drop at night. The average highs of 21°C (71°F) hint at the approaching warmth of spring, contrasting sharply with the chilly lows that can plunge to -15°C (5°F). This month experiences minimal precipitation, with only a single rainy day, allowing for predominantly clear skies and a humidity level of 57% that feels comfortable for most outdoor activities. As the landscape begins to bloom, visitors can enjoy the beauty of the changing season, making September a unique time to experience the captivating weather of this high-altitude destination. For a deeper understanding of what to expect throughout the year, check out the detailed information at San Antonio de los Cobres Climate.