Last updated: August 21, 2025
September in Tandil, Argentina brings a dynamic shift in weather as the region transitions from winter's chill to the warmth of spring. With maximum temperatures reaching a comfortable 27°C (81°F) and an average temperature of 11°C (52°F), this month showcases the onset of milder days. However, nights can still be brisk, dipping to a minimum of -3°C (27°F). Rainfall is prominent, with an average of 79 mm (3.1 in) across 7 days, contributing to the region's lush greenery. Coupled with a humidity level of 76%, September offers a refreshing yet occasionally wet experience, making it an ideal time for nature enthusiasts to explore Tandil’s stunning landscapes.
In September, Tandil, Argentina starts to shed the chill of winter, signaling the approach of spring. With minimum temperatures hovering around -3°C (27°F) and an average of 11°C (52°F), the transition is gentle yet noticeable. The maximum temperature can reach a pleasant 27°C (81°F), offering warm days that invite outdoor activities. This month marks a significant warming trend compared to the preceding winter months, as temperatures begin to rise steadily. As nature awakens, the vibrant blossoms and fresh greenery add to the charm, making September a delightful time to explore this picturesque region.
In September, Tandil experiences a notable precipitation with an average of 79 mm (3.1 in), reflecting a slight increase from August's 35 mm (1.4 in). This month typically sees about 7 rainy days, which helps sustain the transition from the dry winter months to the more humid spring season. As the year progresses, precipitation levels generally rise, peaking in April with 119 mm (4.7 in). Overall, September's rainfall plays a crucial role in preparing the landscape for the vibrant blooms of spring, showcasing a trend of increasing moisture that is vital for local agriculture and the thriving natural ecosystems.
As September rolls around in Tandil, Argentina, the average humidity levels settle at a comfortable 76%. This marks a mild decline from the peak of 86% experienced in May, but still holds onto the relatively high humidity characteristic of the late winter and early spring months. Following the trend of the past few months, where humidity began to wane from an early season high, September's levels suggest a gradual transition towards the drier climate conditions of spring. The overall pattern reveals an interesting ebb and flow, with the air in Tandil becoming noticeably more humid from late fall to spring, creating a backdrop of lush landscapes and vibrant flora that define the region’s charm.
In September, Tandil experiences a UV Index of 7, placing it in the high exposure category. This signifies a notable shift from the milder UV conditions of winter, where the index hovered around 3 for several months. As spring approaches, residents and visitors alike should be cautious, with a burn time of 25 minutes if unprotected. Interestingly, this marks the start of a trend towards higher UV levels, leading into the more intense sunshine of late spring and summer, where indices can soar above 12. So, while September eases into warmer days, it's wise to stay sun-smart. For more detailed information on UV levels throughout the year, check the Tandil UV Index.
UV Risk Categories
As September unfolds in Tandil, Argentina, the sun continues to shine, illuminating the landscape with approximately 252 hours of bright daylight. This month marks a subtle transition, as it sits comfortably between the warm summer days of January and February, which boast over 300 hours of sunlight, and the cooler, cloudier months ahead in autumn. While September's hours are fewer than the summer peak, they still reflect a steady trend of ample sunshine that enhances the region's stunning natural beauty. The gradual increase in daylight hours through October, reaching 305 hours, signals the approach of spring, promising more sunshine and warmth as nature awakens once again.
In Tandil, Argentina, September marks a notable transition in weather patterns, as the likelihood of sunny days dips to 43%. This places the month among the lower ranks for sunshine when compared to the brighter spring and summer months. While January and October enjoy the highest probabilities of sun at 57% and 64%, respectively, September's cooler temperatures and increasing cloud coverage signal the slow shift towards spring. As summer approaches, the return of brighter days becomes evident, setting the stage for a more vibrant October. Overall, September offers a blend of changing seasons, where the chance of sunshine remains less predictable, inviting a mix of both crisp air and the occasional sunny break.
In Tandil, Argentina, the rhythm of the seasons is beautifully reflected in the changing daylight duration throughout the year. As September unfolds, daylight returns to an average of 11 hours, marking a transitional phase as the lingering chill of winter gives way to the mild embrace of spring. This increase in light mirrors the gradual lengthening of days leading into the warmer months, following a dip in light during the depths of winter in June and July. With days growing longer, September offers a vibrant reminder of renewal, setting the stage for the 14 hours of daylight that December and January promise. As nature awakens, the promise of brighter days ahead becomes a palpable reality in Tandil.
As September unfolds in Tandil, Argentina, the winds begin to pick up, reaching an average speed of 4.2 m/s (9 mph). This slight increase marks a transition into spring, as the region experiences one of its breezier months. Following a summer of consistency, where January and February both registered an average of 4.1 m/s (9 mph), the winds took a gentle dip in March but regained momentum by July, peaking with 4.3 m/s (10 mph). September continues this upward trend, suggesting a refreshing breath of air as the landscape awakens from winter slumber. As the season progresses, this invigorating breeze sets the stage for the vibrant growth and activity that defines Tandil’s spring.
Weather in Tandil varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Tandil, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is quite variable, with temperatures ranging from a chilly -3°C (27°F) to a pleasant 27°C (81°F), averaging around 11°C (52°F). This month sees a significant amount of precipitation, totaling 79 mm (3.1 in) over approximately 7 days, accompanied by higher humidity levels at 76%. In contrast, January presents a much warmer climate, with temperatures typically ranging between 5°C (42°F) and a scorching 39°C (103°F), averaging 21°C (71°F). The precipitation in January is lower at 60 mm (2.4 in), also spread over 7 days, but with reduced humidity at 59%. For more detailed information on January weather, visit Tandil weather in January.
When comparing the weather in September and February, notable differences emerge. September features cooler temperatures with a minimum of -3°C (27°F) and an average of 11°C (52°F), while February boasts milder conditions, with a minimum of 5°C (41°F) and an average of 20°C (69°F). The maximum temperatures in September reach up to 27°C (81°F), whereas February can soar to a high of 34°C (93°F). Precipitation is slightly heavier in September at 79 mm (3.1 in) over 7 days, compared to February's 66 mm (2.6 in) over 6 days, and humidity levels are higher in September at 76%, compared to 70% in February. For a more detailed overview of February weather, you can check Tandil weather in February.
In comparing the weather of September and March, September experiences cooler temperatures with a minimum of -3°C (27°F) and an average of 11°C (52°F), while March sees milder conditions, starting from a minimum of 2°C (36°F) and averaging 18°C (64°F). March presents a wider temperature range, peaking at 33°C (91°F), compared to September's maximum of 27°C (81°F). Both months have similar precipitation levels, with September recording 79 mm (3.1 in) over 7 days and March slightly higher at 81 mm (3.2 in) over 9 days. However, March is slightly more humid at 72%, in contrast to September's 76%. For more detailed insights on March weather, you can check this link: Tandil weather in March.
When comparing the weather in September and April, several notable differences emerge. September experiences a wider temperature range, with minimums dropping to -3°C and maximums reaching 27°C, while April generally has milder temperatures, with lows of 1°C and highs of 28°C. In terms of average temperatures, September's average is 11°C, compared to April's more comfortable average of 15°C. Precipitation is higher in April, totaling 119 mm over 8 days, compared to September's 79 mm over 7 days. Additionally, April has a slightly higher humidity level at 82%, compared to 76% in September. For a detailed look at April weather in the area, you can visit Tandil weather in April.
September and May present distinct weather patterns, although they share some similarities. Both months have a minimum temperature of around -3°C (27°F) and an average temperature near 11°C (52°F). However, September tends to be warmer, with a maximum temperature reaching 27°C (81°F) compared to May's peak of 25°C (78°F). Notably, September also experiences higher precipitation with 79 mm (3.1 in) over 7 days, while May sees only 39 mm (1.5 in) across 6 days. Humidity levels are relatively high in both months, but May is slightly more humid at 86%, compared to September's 76%. For more detailed information on May weather, you can check Tandil weather in May.
In September, the weather tends to be warmer and more variable compared to June, with average temperatures ranging from a chilly -3°C at night to a pleasant 27°C during the day. In contrast, June experiences slightly cooler temperatures, with a minimum of -4°C and a maximum of 21°C. Additionally, September sees more precipitation, with about 79 mm falling over 7 days, while June has less rainfall at 47 mm over just 5 days. Humidity levels are fairly high in both months, with September at 76% and June slightly higher at 81%. For a detailed look at the conditions in June, you can check Tandil weather in June.
When comparing the weather in September and July, September boasts a wider temperature range, with minimums reaching -3°C (27°F) and maximums soaring to 27°C (81°F), while July experiences slightly cooler temperatures, with minimums of -4°C (25°F) and maximums peaking at 21°C (69°F). In terms of average temperatures, September offers a milder average of 11°C (52°F) compared to July's cooler 7°C (45°F). Additionally, September sees more precipitation, totaling 79 mm (3.1 in) over 7 days, while July has a lower total of 50 mm (2.0 in) across the same number of rainy days. Humidity levels are also comparable, with September at 76% and July slightly lower at 73%. For more details on July weather specifically, you can visit Tandil weather in July.
In comparing the weather of September and August, September tends to be slightly warmer with average temperatures reaching 11°C (52°F) compared to August's 9°C (48°F). Moreover, September experiences higher maximum temperatures at 27°C (81°F) versus August's 25°C (77°F). However, September also brings more precipitation, totaling 79 mm (3.1 in) over 7 days, in contrast to August's 35 mm (1.4 in) over 4 days. Additionally, September's humidity is higher at 76% compared to July's 69%. For a deeper dive into August's weather specifics, you can check Tandil weather in August.
September and October exhibit notable differences in weather patterns. September experiences cooler temperatures with a minimum of -3°C (27°F) and an average of 11°C (52°F), while October sees a slight increase with a minimum of -1°C (30°F) and an average of 13°C (56°F). The maximum temperatures in October rise to 33°C (91°F), compared to 27°C (81°F) in September, providing warmer days overall. Precipitation is fairly consistent, with September receiving 79 mm (3.1 in) and October slightly less at 72 mm (2.8 in), both spread over 7 days. Additionally, humidity drops from 76% in September to 69% in October, contributing to a more comfortable atmosphere. For more details, visit Tandil weather in October.
In comparing the weather between September and November, we can see notable differences in temperature and humidity. September experiences cooler temperatures with a minimum of -3°C (27°F) and an average of 11°C (52°F), while November boasts a warmer minimum of 2°C (37°F) and a significantly higher average of 17°C (62°F), peaking at 33°C (91°F). Precipitation levels are fairly similar, with September receiving 79 mm (3.1 in) over 7 days and November slightly higher at 82 mm (3.2 in) across 9 days. Humidity levels also differ, being higher in September at 76% compared to November's 66%. For a more detailed look at November weather, you can check Tandil weather in November.
In comparing the weather patterns of September and December, it is evident that December experiences significantly warmer temperatures, with an average of 20°C (68°F) and highs reaching up to 36°C (97°F), while September has a much cooler average of 11°C (52°F) and a maximum temperature of 27°C (81°F). Despite slightly lower precipitation in December at 74 mm (2.9 in) over 9 days compared to September's 79 mm (3.1 in) over 7 days, December boasts lower humidity at 61%, providing a more comfortable atmosphere. For a detailed look at December's weather, you can visit Tandil weather in December.
As September unfolds in Tandil, the shift from winter to spring brings a refreshing change in weather. The temperatures begin to rise, offering warmer days that contrast with the chilly nights, making it a transitional month. With an average temperature of 11°C, the overall climate feels more inviting, though occasional chilly spells still remind us of the recent winter. While rainfall remains present, typically manifesting in about seven wet days, it is less intense compared to the wetter seasons ahead. The 76% humidity adds a gentle nuance to the air, making the blossoming environment feel vibrant yet comfortable. For a deeper dive into the nuances of Tandil's climate throughout the year, explore Tandil Climate.