September Weather in Cafayate, Argentina

Last updated: August 21, 2025

In Cafayate, Argentina, September heralds the onset of spring, characterized by a pleasant climate. With maximum temperatures reaching 31°C (88°F), the days are warm and inviting, while the nights offer a refreshing coolness with an average of 13°C (55°F). Visitors can expect a brief respite from summer heat, as minimum temperatures can dip down to -5°C (24°F). Despite experiencing only 8 mm (0.3 in) of precipitation over a mere 2 days, the air maintains a comfortable humidity level of 58%, creating an ideal atmosphere for outdoor exploration and enjoying the region's stunning natural beauty.

September Temperature in Cafayate

In Cafayate, Argentina, September marks a noticeable shift in temperatures as the region transitions towards spring. The month kicks off with chilly nights, recording minimum temperatures dipping to -5°C (24°F), while daytime brings a mild embrace with averages around 13°C (55°F) and maximums reaching a pleasant 31°C (88°F). Compared to the cooler preceding months, September offers a refreshing warmth that hints at the forthcoming warmth of summer. As the days lengthen and the sun's strength increases, locals and visitors alike appreciate this inviting weather, perfect for exploring the stunning vineyards and surrounding landscapes. This blend of crisp mornings and balmy afternoons makes September an ideal time to savor Cafayate's unique charm.

September Weather in Cafayate: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cafayate, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cafayate, 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).
JanFebMarAprMayJunJulAugSepOctNovDec646260585348485055596263
Data source: Temperature data for Cafayate 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 Cafayate

In Cafayate, Argentina, September marks the return of occasional moisture after the arid winter months, with precipitation measuring 8 mm (0.3 in) over just two days. This slight uptick in rainfall paves the way for the lushness of spring, transitioning from the preceding dry spell where July and August saw a mere 4 mm (0.2 in) of rain combined. As the region prepares for October, which typically experiences a jump to 18 mm (0.7 in), September serves as a gentle reminder that rainfall is re-entering the climatic rhythm of Cafayate, ultimately enriching the soil and rejuvenating the vibrant landscapes. This trend not only signals the shift toward wetter months but also highlights the resilience of the natural environment in this unique Argentine locale.

September Precipitation Trends in Cafayate

The chart displays monthly precipitation patterns in Cafayate, 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 Cafayate, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec103117712985448185584
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cafayate

September in Cafayate, Argentina, marks a transition in humidity levels as summer wanes and autumn approaches. With humidity dropping to 58%, it reflects a notable decrease from the 81% seen in February and 85% in April. This month serves as a bridge, as humidity begins its gradual decline towards the drier months of July and August, which see lows of 53% and 44% respectively. Interestingly, September's levels are still relatively high compared to the dry winter months, yet they hint at the crispness of upcoming fall. Overall, the trend indicates a steady declination from the high humidity of summer, setting the stage for a more refreshing atmospheric shift, while the annual cycle of humidity continues to whet the appetite for seasonal change.

September Average Humidity in Cafayate

This chart illustrates the average monthly humidity levels in Cafayate, 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 Cafayate is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%81%83%85%75%62%53%44%58%55%66%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cafayate

In Cafayate, Argentina, September marks a notable transition in the UV Index, which rises to 12, categorizing it as extreme with a burn time of just 10 minutes. This mirrors the trends observed in the preceding months, where summer sees soaring UV levels peaking from January to November. Although September maintains the extreme classification typical of the earlier year, it serves as a reminder that as spring approaches, sun protection remains essential. With UV Index levels consistently high throughout the year, it becomes crucial for residents and visitors alike to stay vigilant about sun safety. For more detailed insights into the UV conditions, visit Cafayate UV Index.

Maximum UV Index Levels in Cafayate for September

The chart shows the monthly maximum UV Index (UVI) for Cafayate 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 Cafayate typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec17161512968912151718
Data source: Cafayate 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 Cafayate

September in Cafayate, Argentina, thrives under a radiant sun, offering an impressive 335 hours of sunshine—a delightful continuation of the trend seen in August. As the year progresses, sunlight peaks notably in the spring months; for instance, the transition from summer to fall brings steady hours, with September matching August’s brightness. This consistency hints at the region's alluring charm, as daylight starts to illuminate the vineyards and rolling hills, preparing for the bountiful harvest season ahead. With October embracing even more sunshine at 353 hours, the transition to spring showcases Cafayate as a haven for sun-seekers and nature lovers alike, ensuring picturesque days filled with warmth and color.

Monthly Sunshine Duration in Cafayate: September Highlighted

The September sunshine duration represents the total number of hours Cafayate 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.
JanFebMarAprMayJunJulAugSepOctNovDec274h299h324h307h316h301h317h335h335h353h342h342h
Data source: Cafayate September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cafayate During September

As September arrives in Cafayate, Argentina, the likelihood of sunny weather remains high, with a 79% chance of sunshine gracing the region. Following the peak summer months, where August boasts an impressive 91%, September continues to enjoy the lingering warmth of early spring. This trend reflects a consistent pattern of increasing sun exposure as the year progresses; notably, the chance of sunshine escalates from a modest 45% in January to a robust 81% in June. The month of September stands as a delightful transition point, making it an inviting time for visitors to bask in the warm rays and explore the stunning landscapes Cafayate has to offer.

Percentage of Sunny Days in September in Cafayate

The chart illustrates the percentage of sunny days in Cafayate 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 Cafayate experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%33%36%54%70%81%76%91%79%73%55%31%
Data source: Cafayate September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cafayate in September

In Cafayate, Argentina, the daylight duration begins to shift noticeably as summer transitions into autumn. In September, the sun graces the region with 11 hours of daylight, mirroring the slightly longer days of August. This marks a gradual easing from the peak summer days of January, which boast a generous 13 hours of sunlight. As the year unfolds, October will bring a subtle increase in daylight, leading back to 12 hours, before the cycle continues. This rhythmic pattern of daylight not only enhances the vibrant landscapes of Cafayate but also plays a vital role in the region's famed vineyards, where the changing light fosters the growth of exquisite grapes throughout the year.

Average Daylight Hours in Cafayate for September

The chart illustrates the variation in daylight duration in Cafayate throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 32m12h 57m12h 11m11h 26m10h 48m10h 31m10h 40m11h 13m11h 56m12h 42m13h 23m13h 43m
Data source: Cafayate daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Cafayate

As September arrives in Cafayate, Argentina, the rhythm of the wind begins to shift. This month marks a gentle increase in average wind speed to 2.0 m/s (4 mph), signaling a transition into the more spirited breezes of spring. Throughout the year, the wind has steadily intensified, from a calm 1.5 m/s in the earlier months to a more lively pace by September. The gradual rise from 1.5 m/s in January to September's refreshing gusts reflects not just climatic change, but a shift in the atmosphere—enhancing the region's vibrant landscapes and inviting outdoor explorations. As the air carries whispers of warmth, Cafayate’s picturesque vineyards clearly thrive under these invigorating conditions, making this time of year particularly enchanting for visitors and locals alike.

Average September Wind Speed in Cafayate

The chart displays monthly wind speed patterns in Cafayate, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.61.51.51.71.71.71.82.0 m/s2.01.71.5
Data source: Cafayate September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Cafayate Compares to Other Months

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

In September, the weather features a wide temperature range, with a minimum of -5°C (24°F) and a maximum of 31°C (88°F), resulting in an average temperature of 13°C (55°F). This month is characterized by low precipitation of only 8 mm (0.3 in) over just 2 days and a moderate humidity level of 58%.

In contrast, January is much milder, with a minimum temperature of 8°C (47°F), an average of 18°C (65°F), and a peak temperature of 32°C (89°F). However, it sees significantly higher precipitation at 103 mm (4.1 in) over 13 days, accompanied by increased humidity at 79%.

For those interested in more detailed information, you can check Cafayate weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a chilly minimum of -5°C (24°F) to a pleasant average of 13°C (55°F), peaking at 31°C (88°F). This month experiences minimal rainfall, with only 8 mm (0.3 in) over just 2 days, and humidity levels sit around 58%. In stark contrast, February sees milder temperatures ranging from a minimum of 8°C (47°F) to an average of 17°C (62°F), reaching a high of 32°C (90°F). However, February is significantly wetter, with 117 mm (4.6 in) of precipitation spread across 16 days, and humidity rises to 81%. For more detailed information, you can visit Cafayate weather in February.

September and March present contrasting weather patterns. In September, temperatures can range from a chilly minimum of -5°C (24°F) to a warm maximum of 31°C (88°F), with an average of 13°C (55°F). The month experiences relatively low precipitation of just 8 mm (0.3 in) over two days and a moderate humidity level of 58%. In contrast, March offers milder temperatures, with a minimum of 4°C (39°F), an average of 16°C (61°F), and a peak of 32°C (90°F). However, it is significantly wetter, boasting 71 mm (2.8 in) of rainfall across 12 days, accompanied by a higher humidity level of 83%. For more detailed information, you can visit Cafayate weather in March.

When comparing the weather in September and April, notable differences emerge. September experiences a broader temperature range, with lows dipping to -5°C (24°F) and highs reaching up to 31°C (88°F), averaging around 13°C (55°F). In contrast, April has milder temperatures, with a minimum of 2°C (36°F) and a maximum of 33°C (91°F), yielding a higher average of 15°C (58°F). Additionally, April sees significantly more precipitation at 29 mm (1.2 in), spread over 6 days, compared to September's 8 mm (0.3 in) over just 2 days. The humidity also differs, with April's levels at 85%, creating a noticeably more humid environment than September's 58%. For more specific insights on the weather in April, consider visiting Cafayate weather in April.

September and May exhibit distinct weather patterns despite some similarities. In September, temperatures range from a chilly -5°C (24°F) at night to a warm 31°C (88°F) during the day, with an average temperature of 13°C (55°F). The month typically experiences 8 mm (0.3 in) of precipitation over 2 days, accompanied by a humidity level of 58%. In contrast, May features slightly milder temperatures, with a minimum of -2°C (28°F) and a maximum of 29°C (85°F), averaging around 12°C (53°F). Interestingly, May also has similar precipitation at 8 mm (0.3 in) but only experiences 1 day of rain, and the humidity is higher at 75%. For those wanting detailed information on May weather, click on this link: Cafayate weather in May.

September and June showcase distinct weather patterns. In September, temperatures range from a chilly -5°C (24°F) during the night to a warm 31°C (88°F) during the day, averaging around 13°C (55°F). The month experiences minimal precipitation, totaling 8 mm (0.3 in) over just 2 days, while humidity stands at a comfortable 58%. In contrast, June has a slightly narrower temperature range, with nighttime lows plummeting to -5°C (24°F) and daytime highs peaking at 29°C (85°F), leading to an average of 9°C (49°F). Remarkably, June is drier with only 5 mm (0.2 in) of precipitation recorded over no rainy days, although it has a marginally higher humidity level at 62%. For more details on June conditions, visit Cafayate weather in June.

In comparing the weather between September and July, it is evident that September experiences a broader temperature range, with minimums of -5°C (24°F) and maximums reaching 31°C (88°F), contrasting with July's colder minimum of -8°C (18°F) and maximum of 27°C (81°F). Moreover, September boasts a higher average temperature of 13°C (55°F) compared to July's 9°C (48°F). While September has slightly more precipitation at 8 mm (0.3 in) over two days, July remains drier, with only 4 mm (0.1 in) and no rainy days. Furthermore, humidity in September is marginally higher at 58%, while July maintains a lower level of 53%. For more insights, you can check Cafayate weather in July.

In September, temperatures are relatively warmer compared to August, with a minimum of -5°C (24°F), an average of 13°C (55°F), and a maximum of 31°C (88°F). This is an increase from August, which features similar minimum temperatures at -5°C (23°F) but has a lower average of 10°C (51°F) and a slightly cooler maximum of 29°C (84°F). Additionally, September sees a marginal increase in precipitation, totaling 8 mm (0.3 in) over 2 days, compared to August's 4 mm (0.2 in) over just 1 day, and humidity rises to 58%, up from 44% in August. For more detailed information about August weather, you can check Cafayate weather in August.

As September transitions into October, the weather experiences notable changes. September sees a minimum temperature of -5°C (24°F) and an average of 13°C (55°F), with a maximum reaching 31°C (88°F) and only 8 mm (0.3 in) of precipitation over just 2 days. In contrast, October brings slightly warmer conditions, with a minimum of 1°C (34°F) and an average of 15°C (60°F), peaking at 34°C (93°F). However, it also registers a higher total rainfall of 18 mm (0.7 in) spread over 5 days, and a slightly lower humidity level of 54%. For more detailed insights on October weather, visit Cafayate weather in October.

In comparing the weather between September and November, we see notable differences in temperature and precipitation patterns. September experiences a broader range of temperatures, with a minimum of -5°C (24°F) and a maximum of 31°C (88°F), resulting in an average of 13°C (55°F). In contrast, November presents a milder climate, where temperatures range from a minimum of 5°C (41°F) to a maximum of 32°C (90°F), and an average temperature of 17°C (63°F).

Furthermore, November is significantly wetter than September, with total precipitation reaching 55 mm (2.2 in) over 12 days, compared to September's minimal 8 mm (0.3 in) over just 2 days. This increase in moisture is accompanied by a slight rise in humidity, which averages 66% in November, compared to 58% in September. For more detailed insights, you can check Cafayate weather in November.

In September, the weather experiences a broader temperature range, with nighttime lows dipping to -5°C (24°F) while daytime highs can reach up to 31°C (88°F), averaging around 13°C (55°F). Precipitation is minimal, with only 8 mm (0.3 in) over 2 days, and humidity hovers around 58%. In contrast, December brings warmer conditions, with minimum temperatures of 7°C (45°F) and average highs soaring to 34°C (93°F), averaging at 17°C (64°F). This month is also significantly wetter, with precipitation totaling 84 mm (3.3 in) over 15 days, coupled with increased humidity at 74%. For more detailed insights, you can check out Cafayate weather in December.

Compare Cafayate's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Cafayate

September in Cafayate brings a delightful transition into spring, featuring warmer temperatures and a noticeable increase in sunshine compared to the cooler months. The days can reach a maximum warm of 31°C (88°F), while nights remain refreshingly cool, dropping to around 13°C (55°F). Unlike the drier months, September experiences a brief spell of moisture, with a couple of rainy days contributing to a hum-friendly atmosphere. As the region shakes off winter, the balance of warmth and humidity paints a vibrant picture, making it a wonderful time to explore the stunning landscapes of Cafayate. For a deeper understanding of the weather patterns, check out Cafayate Climate.