Last updated: August 21, 2025
In September, Salta, Argentina, experiences a delightful transition into spring with maximum temperatures reaching 31°C (88°F) and an average temperature of 13°C (56°F). The nights can be chilly, dipping as low as -1°C (30°F). During this month, the city sees about 55 mm (2.2 in) of rainfall, spread over approximately 8 rainy days, contributing to a moderate humidity level of 57%. This blend of warm days and cooler nights, coupled with occasional showers, creates an inviting atmosphere for both locals and visitors to explore the natural beauty and cultural richness of the region.
September in Salta, Argentina, marks a transition as spring unfurls its charm. With temperatures ranging from a minimum of -1°C (30°F) to a maximum of 31°C (88°F), the month is characterized by cool mornings that gradually warm up to pleasant afternoons. The average temperature hovers around 13°C (56°F), providing a comfortable climate for outdoor exploration. This month signifies a shift from the colder winter months, with temperatures steadily climbing to prepare for the warmer days ahead. As Salta shakes off the chill, its vibrant landscapes come alive, inviting both locals and travelers to enjoy the perfect blend of crisp air and golden sunshine.
In September, Salta, Argentina experiences a noticeable transition in its precipitation patterns, with 55 mm (2.2 in) of rainfall occurring over 8 days. This marks a significant increase compared to the dry months of June and July, which saw just 35 mm and 34 mm, respectively, both spread over only 7 days. As the region moves from the drier winter season into the more humid spring months, September's rainfall begins to lay the groundwork for the wetter October to December period. This gradual uptick in precipitation highlights the changing climate, as the lush landscapes of Salta prepare to embrace the vibrant growths that come with the upcoming rainy season. Overall, September serves as a pivotal month, bridging the gap between arid conditions and the forthcoming downpours that characterize Salta's climate.
As September settles in Salta, Argentina, humidity begins to rise again from the summer lows of the previous months, measuring around 57%. This marks a notable increase compared to the dry peak of August, which recorded just 44% humidity. The trend showcases a gradual transition as the region shifts from the dry winter months of July and August, with their respective lows of 47% and 44%, towards the more humid conditions typical of the spring months ahead. Following September, humidity steadily climbs again, indicating that Salta is on the cusp of a wetter season, where levels will soon approach the higher thresholds seen earlier in the year.
In September, Salta, Argentina, experiences a noteworthy resurgence in UV intensity, with a UV Index of 12, categorized as extreme. This marks a shift back to the higher levels seen earlier in the year after a dip in May and June. With a quick burn time of just 10 minutes, it’s crucial for residents and visitors alike to take protective measures against the sun's rays. As the season transitions, September serves as a reminder of the enduring strength of the sun in this vibrant region, setting the stage for the even higher indices in the months to come. For more detailed information, check out Salta UV Index.
UV Risk Categories
As the vibrant days of September unfold in Salta, Argentina, the city basks in a generous 328 hours of sunshine, making it a delightful time for exploration. This month maintains nearly the same solar warmth as August, which boasted 329 hours, showcasing a steady transition into spring. Following the previous months of July and June—which provided a more modest, yet respectable, 308 and 293 hours respectively—September heralds the approach of more sun-soaked days. With a noticeable upward trend leading into October, projected to hit 356 hours, September sets the stage for an inviting climate that beckons both locals and travelers alike to enjoy the breathtaking landscapes and cultural richness of Salta. The sun's embrace is a perfect prelude to the vibrant colors and festivities of the spring season.
In Salta, Argentina, September marks a transition towards more favorable weather, with a 62% chance of sunny days. This places it among the sunnier months of the year, following the peak of August, which boasts an impressive 86% likelihood of sunshine. The trend shows a clear progression from the cooler months of winter, where July and June enjoy 73% and 64% sunny chances, respectively. As spring approaches, September’s weather offers a delightful balance, maintaining a generally pleasant atmosphere while paving the way for the upcoming warmth of October.
As September arrives in Salta, Argentina, the daylight hours linger around 11 hours, marking a delightful transition into spring. The daylight duration begins to stabilize after the slight dip in the cooler months, providing a refreshing balance between light and shadow. This trend continues as the days gradually lengthen in October, where they return to 12 hours, leading up to the summer months of November and December that bask in 13 hours of sunlight. The gentle shift from shorter to longer days not only heralds the onset of warmer temperatures but also invites vibrant outdoor activities, making September a time ripe for exploration and enjoyment in the beautiful landscapes of Salta.
In September, Salta, Argentina, experiences a gentle breeze, with average wind speeds of 1.5 m/s (3 mph). This slight uptick from the previous months reflects a trend of increasing winds as the seasons shift towards spring. Following a consistent pattern throughout the winter months with wind speeds at 1.4 m/s, September marks the beginning of a transition, setting the stage for an invigorating October as winds are expected to increase further to 1.7 m/s (4 mph). The subtle changes in wind patterns not only indicate the arrival of warmer temperatures but also add a refreshing touch to the vibrant atmosphere of Salta during this time of year.
Weather in Salta varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Salta, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather in Salta exhibits a varied temperature range with a minimum of -1°C (30°F) and a maximum of 31°C (88°F), averaging around 13°C (56°F). This month sees relatively low precipitation, with about 55 mm (2.2 in) falling over approximately 8 days, and humidity levels hover around 57%. In contrast, January experiences milder temperatures, with a minimum of 10°C (51°F) and a maximum of 29°C (85°F), averaging 19°C (66°F). However, January is significantly wetter, receiving 241 mm (9.5 in) of rainfall across 22 days, contributing to a higher humidity level of 84%. For a detailed look at January weather conditions in Salta, you can visit Salta weather in January.
September and February present contrasting weather patterns, reflecting the transition from late winter to late summer. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 31°C (88°F), averaging around 13°C (56°F). The month sees relatively low precipitation, with 55 mm (2.2 in) falling over about 8 days, and humidity levels at a moderate 57%.
Conversely, February experiences milder temperatures, starting at a minimum of 10°C (51°F) and peaking at 28°C (83°F), with an average of 17°C (64°F). However, this month is significantly wetter, receiving 267 mm (10.5 in) of rain over approximately 24 days and higher humidity at 87%. The stark differences in temperature, precipitation, and humidity highlight how dynamic the climate can be in different months. For more details, check out Salta weather in February.
September and March present distinct weather patterns. September experiences a broader temperature range, with a minimum of -1°C (30°F) and a maximum of 31°C (88°F), while averaging around 13°C (56°F). In contrast, March is slightly warmer, with minimal temperatures starting at 4°C (40°F) and maximums reaching 29°C (84°F), resulting in an average of 16°C (61°F). Precipitation levels are notably higher in March, totaling 292 mm (11.5 in) over 24 days, compared to September’s 55 mm (2.2 in) across just 8 days, leading to a much higher humidity of 88% in March versus 57% in September. For more insights on this, you can refer to Salta weather in March.
When comparing the weather in September to that in April, it's evident that both months present distinct characteristics. September experiences a wider temperature range, with a minimum of -1°C (30°F) and a maximum of 31°C (88°F), allowing for warmer days but cooler nights. In contrast, April has milder temperatures, ranging from a minimum of 4°C (40°F) to a maximum of 26°C (79°F), contributing to an overall steadier climate.
However, April is notably wetter, receiving 223 mm (8.8 inches) of precipitation over 22 days, which is significantly higher than September’s 55 mm (2.2 inches) over 8 days. This results in April being more humid (85%) compared to September’s 57%. For a more detailed look at April's weather, you can check this Salta weather in April.
September and May present contrasting weather patterns. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 31°C (88°F), with an average of 13°C (56°F). The month sees moderate precipitation of 55 mm (2.2 in) over about 8 days, accompanied by a humidity level of 57%. In contrast, May experiences slightly warmer temperatures, with a minimum of 0°C (32°F) and a maximum of 26°C (78°F), averaging 11°C (53°F). However, it is significantly wetter, receiving 120 mm (4.7 in) of rainfall across 14 days and exhibiting a higher humidity of 74%. For more detailed insights, visit Salta weather in May.
In comparing the weather between September and June, September showcases a broader temperature range with a minimum of -1°C (30°F) and a maximum reaching up to 31°C (88°F), leading to an average of 13°C (56°F). In contrast, June presents cooler conditions, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 26°C (79°F) and an average of 9°C (48°F). While September experiences slightly higher precipitation at 55 mm (2.2 in) over 8 days, June sees a lesser rainfall of 35 mm (1.4 in) across 7 days. Both months exhibit similar humidity levels, around 56%. For more information on June weather in Salta, you can check Salta weather in June.
In comparing the weather between September and July, September generally experiences a wider temperature range, with minimums reaching -1°C (30°F) and maximums soaring up to 31°C (88°F), while July has a cooler spectrum with minimums at -4°C (25°F) and a maximum of 26°C (79°F). Additionally, September has higher average temperatures at 13°C (56°F) compared to July's 9°C (48°F). When it comes to precipitation, September sees more rain with 55 mm (2.2 in) over 8 days, whereas July has less, receiving only 34 mm (1.3 in) over 7 days. Humidity levels are also higher in September at 57%, contrasting with July's humidity of 47%. For further details on July's climate, you can check Salta weather in July.
In comparing the weather of September and August, September showcases a broader temperature range with a minimum of -1°C (30°F) and a maximum reaching up to 31°C (88°F), averaging at 13°C (56°F). This is a notable shift from August, where temperatures ranged from a minimum of -4°C (25°F) to a maximum of 30°C (86°F), averaging at a cooler 10°C (51°F). Furthermore, September experiences slightly higher precipitation, totaling 55 mm (2.2 in) over 8 days, compared to August's 41 mm (1.6 in) over 6 days. The humidity also rises in September to 57%, contrasting with August's lower figure of 44%. For more detailed insights on August weather, you can check Salta weather in August.
September and October show distinct changes in weather patterns. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 31°C (88°F), with an average of 13°C (56°F). This month also experiences relatively mild precipitation of 55 mm (2.2 in) over about 8 days, alongside a humidity level of 57%. On the other hand, October brings slightly warmer temperatures, with a minimum of 3°C (37°F), an average of 15°C (60°F), and a maximum of 32°C (90°F). However, October significantly increases in precipitation to 137 mm (5.4 in) spread across 15 days, while the humidity decreases slightly to 55%. For more detailed insights, check out Salta weather in October.
In September, the weather showcases a wide temperature range with minimums dropping to -1°C (30°F) and maximums reaching up to 31°C (88°F), averaging around 13°C (56°F). The month is relatively dry with 55 mm (2.2 in) of precipitation spread over 8 days and humidity levels at 57%.
In contrast, November brings milder temperatures, with a minimum of 7°C (45°F) and a maximum of 29°C (85°F), averaging 17°C (63°F). However, it is significantly wetter, with precipitation accumulating to 210 mm (8.2 in) across 18 days and higher humidity at 70%. The transition from September to November indicates a shift towards both warmer and wetter conditions. For those interested in the specifics of rainfall and climate, further details can be found at Salta weather in November.
In September, the weather in Salta exhibits a wide range of temperatures, with minimums dropping to -1°C (30°F) and maximums reaching up to 31°C (88°F). The month experiences relatively moderate precipitation of 55 mm (2.2 in) over about 8 days, coupled with a humidity level of 57%. By December, the climate shifts significantly, with minimum temperatures rising to 7°C (45°F) and averaging around 18°C (64°F), while maximums peak at 28°C (83°F). However, December is markedly wetter, receiving 278 mm (10.9 in) of precipitation over 22 days, along with increased humidity at 77%. This transition highlights a move from a more variable, drier month in September to a wetter and more humid December. For more details, check out Salta weather in December.
September in Salta marks a delightful transition as temperatures begin to rise, offering a striking contrast to the cooler months that precede it. With a noticeable increase in daytime highs, this month invites outdoor exploration, while the average lows remind visitors of the crispness of early spring. Although September experiences some precipitation, with occasional rain showers, the overall humidity levels remain moderate, creating a refreshing atmosphere. As the region shakes off the chill of winter, September is truly a celebration of warmer days ahead, paving the way for the vibrant summer months. For more detailed insights, check out Salta Climate.