Last updated: August 21, 2025
In September, San Martin, Argentina experiences a diverse range of temperatures, with maximums soaring up to 36°C (97°F) during the day, while nights can cool down to a brisk -1°C (31°F). This month boasts an average temperature of 16°C (62°F), creating a refreshing climate ideal for outdoor activities. Precipitation is minimal, with just 6 mm (0.2 in) recorded over a single rainy day, allowing for plenty of sunshine amidst the 51% humidity levels. The weather in September is perfect for those looking to explore the stunning landscapes of San Martin while enjoying a comfortable temperature range.
September in San Martin, Argentina, marks a transitional period where the chill of winter begins to fade, welcoming a more temperate climate. With temperatures ranging from a minimum of -1°C (31°F) to a maximum of 36°C (97°F), this month sees an average of 16°C (62°F), hinting at the impending warmth of spring. As the days grow longer and the air becomes milder, September sets the stage for a vibrant change, contrasting sharply with the frigid lows of previous months. This gradual warming trend invites outdoor exploration and highlights San Martin’s natural beauty, creating a picturesque landscape that is a feast for the senses.
In September, San Martin, Argentina experiences a slight uptick in rainfall compared to the drier months of August, with 6 mm (0.2 in) accumulating over just one day. This minimal precipitation marks a transition towards the wetter months ahead, as October's average rises to 13 mm (0.5 in). The month serves as a bridge, suggesting a gradual return to the more frequent showers seen earlier in the year, particularly from January to March, when precipitation peaks. With only a single wet day this month, it's clear that while September remains relatively dry, it hints at the reawakening of the region's rainfall patterns as spring approaches.
As September rolls into San Martin, Argentina, the humidity begins to settle into a moderate rhythm, hovering around 51%. This dip follows a peak in the winter months, where humidity reached as high as 69% in May. The trend showcases a gradual decline from the previous months, particularly from August's 60%, heralding the onset of spring. Observing the pattern, it's clear that the year's humidity levels generally decline from the wetter autumn and winter months, with January's low at 40% offering a stark contrast to the damp conditions experienced just a few months prior. As the seasons shift, residents can anticipate a balance in moisture levels, providing a refreshing yet comfortable atmosphere.
In September, San Martin, Argentina, experiences a UV Index of 8, categorized as very high, meaning you can burn in as little as 15 minutes of sun exposure. As the season transitions from winter to spring, there’s a noticeable uptick in UV intensity compared to the cooler months—reflecting a broader trend where the UV Index peaks at 15 in January and gradually decreases during autumn, only to climb again as summer approaches. It's crucial for residents and visitors alike to stay vigilant about sun protection during this time. For more detailed insights on the UV Index throughout the year, check out San Martin UV Index.
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September brings a delightful transition in San Martin, Argentina, where the sun shines brightly for 321 hours. This marks a gentle increase from the cooler months of winter, as the days begin to lengthen, inviting residents and visitors alike to enjoy the crisp autumn air. Following a vibrant August with 314 hours of sunshine, September's rays set the stage for a splendid October, which promises to bathe the region in 354 hours of golden light. As the seasons shift, San Martin showcases its natural beauty, making this time of year particularly captivating for those seeking outdoor adventures amidst the stunning landscapes.
September in San Martin, Argentina, shines with an impressive 83% chance of sunny weather, setting a vibrant tone as the month welcomes the arrival of spring. This trend follows a string of sunlit months, with both July and August also showcasing strong probabilities of sunshine at 87% and 81% respectively. As the year progresses, September stands out not only for its high likelihood of clear skies but also for a notable stability when compared to the sunny peaks of summer. With longer days and warming temperatures, it's a fantastic time to embrace outdoor activities in this picturesque locale.
In September, San Martin, Argentina, experiences a gentle transition as daylight gradually increases to 11 hours. This marks a notable shift following the winter months, where daylight dipped to its lowest at 9 hours in June. The days begin to lengthen again, signaling the arrival of spring in the Southern Hemisphere. As September progresses, the daylight hours will continue to grow, paving the way for the vibrant energy of October's 12 hours. This gradual shift not only heralds warmer weather but also invites a blossoming of life and activity in this picturesque region.
As September rolls into San Martin, Argentina, the gentle embrace of the wind picks up with an average speed of 3.5 m/s (8 mph), marking a noticeable increase from the previous months. This shift not only signals the arrival of spring but also aligns with a broader trend of escalating winds that begins in late winter, culminating in a peak around October at 3.6 m/s (8 mph). With each passing month, the wind’s caress becomes more spirited, providing a refreshing contrast to the lighter breezes of summer, which hover around 2.4 m/s (5 mph). This invigorating change invites both locals and visitors to step outside, reveling in a picturesque landscape where the fresh air invigorates the senses and heralds the vibrancy of the season ahead.
Weather in San Martin varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Martin, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather conditions. In September, temperatures range from a chilly minimum of -1°C (31°F) to a mild average of 16°C (62°F), with a notable maximum of 36°C (97°F). The month sees minimal precipitation, with only 6 mm (0.2 in) over just one day, and humidity levels are relatively moderate at 51%. In contrast, January boasts a much warmer climate, where the temperatures vary from a minimum of 10°C (49°F) to an average of 27°C (82°F), and can peak at a scorching 42°C (107°F). This month experiences more rainfall, accumulating 36 mm (1.4 in) over about six days, while humidity drops to 40%. For a more detailed look at January conditions, visit San Martin weather in January.
In comparing the weather between September and February, significant differences emerge in temperature and precipitation patterns. September boasts a wider temperature range, with minimums plunging to -1°C (31°F) and maximums soaring to 36°C (97°F), resulting in an average of 16°C (62°F). In contrast, February offers a much warmer climate, with minimums around 13°C (55°F) and maximums reaching a sweltering 41°C (107°F), leading to a more consistent average of 25°C (78°F). Furthermore, February experiences considerably higher precipitation, totaling 39 mm (1.6 in) over an average of 7 days, compared to a mere 6 mm (0.2 in) over just 1 day in September. The humidity levels also slightly differ, with September at 51% and February at 46%. To explore more about February weather, visit San Martin weather in February.
September and March present contrasting weather conditions in terms of temperature and precipitation. In September, temperatures can range from a chilly low of -1°C (31°F) to an average high of 36°C (97°F), but the month generally experiences dry conditions with only 6 mm (0.2 in) of precipitation over just one day and humidity at 51%. In contrast, March boasts milder temperatures, with a minimum of 7°C (44°F) and an average high of 38°C (101°F). This month sees significantly more rainfall at 26 mm (1.0 in) spread over five days, coupled with a slightly higher humidity of 54%. For a more detailed look at March weather, check out San Martin weather in March.
When comparing the weather in September and April, it's evident that both months exhibit distinct characteristics. September typically offers a broader temperature range with minimums dropping to -1°C (31°F) and maximums reaching 36°C (97°F), resulting in an average temperature of 16°C (62°F). In contrast, April features slightly warmer temperatures with minimums of 2°C (36°F), maximums of 34°C (93°F), and an average of 18°C (66°F). Additionally, April experiences more precipitation, with 20 mm (0.8 in) over about three days, compared to September's mere 6 mm (0.2 in) spread over just one day. Humidity levels are also higher in April at 65%, compared to September's 51%. For more detailed insights, you can check out San Martin weather in April.
September and May showcase distinct weather patterns, highlighting the transition from late winter to early spring. In September, temperatures can fluctuate significantly, ranging from a chilly minimum of -1°C to a warm maximum of 36°C, with an average of 16°C. The month features relatively low precipitation at just 6 mm over one day and a comfortable humidity level of 51%. In contrast, May presents a more temperate climate with minimums around 0°C and maximums peaking at 27°C, averaging 13°C. Precipitation increases to 17 mm over two days, and humidity rises to 69%, making it feel more humid and transitional. For a detailed look at weather patterns in May, you can check San Martin weather in May.
When comparing the weather in September and June, notable differences in temperature and humidity emerge. September boasts a much wider temperature range, with a minimum of -1°C (31°F) and a maximum reaching up to 36°C (97°F), while June tends to be cooler overall, with temperatures ranging from -4°C (26°F) to a maximum of 26°C (79°F). Additionally, September is typically drier, with only 6 mm (0.2 in) of precipitation on average over a single day, whereas June has slightly less precipitation at 5 mm (0.2 in) also over one day, but higher humidity at 64%. For a more detailed look at June's weather, you can visit San Martin weather in June.
In comparing the weather between September and July, September boasts a significantly warmer climate, with average temperatures soaring to 16°C (62°F) and a maximum of 36°C (97°F). In contrast, July remains much cooler, with an average temperature of only 8°C (47°F) and a maximum of 23°C (74°F). Interestingly, while September experiences minimal precipitation at 6 mm (0.2 in) over just one day, July's precipitation is slightly lower at 4 mm (0.2 in) but has a higher humidity level of 65% compared to September's 51%. For a detailed overview of July's weather in San Martin, you can refer to San Martin weather in July.
In comparing the weather of September and August, September exhibits a more diverse temperature range with a minimum of -1°C (31°F) and a peak of 36°C (97°F), resulting in an average temperature of 16°C (62°F). In contrast, August records slightly cooler temperatures, with a minimum of -2°C (28°F) and a maximum of 32°C (90°F), leading to a lower average of 12°C (54°F). Furthermore, September sees a marginal increase in precipitation with 6 mm (0.2 in) occurring on 1 day, whereas August remains drier with just 2 mm (0.1 in) and no recorded rainfall. Interestingly, humidity levels are higher in August at 60%, compared to 51% in September. For more detailed weather insights, check out San Martin weather in August.
In September, temperatures range from a chilly minimum of -1°C (31°F) to a warm maximum of 36°C (97°F), with an average of 16°C (62°F). The month is relatively dry, recording only 6 mm (0.2 in) of precipitation over just one day and maintaining a humidity level of 51%.
In contrast, October sees a slight increase in both minimum and average temperatures, with a minimum of 2°C (35°F), an average of 20°C (68°F), and a maximum reaching 39°C (103°F). Precipitation also rises to 13 mm (0.5 in) over three days, while humidity slightly decreases to 49%. For more detailed weather information, check out San Martin weather in October.
September and November exhibit contrasting weather patterns. In September, temperatures range from a minimum of -1°C (31°F) to a maximum of 36°C (97°F), with an average of 16°C (62°F). The month experiences minimal precipitation, totaling only 6 mm (0.2 in) over just 1 day, while humidity hovers around 51%. In contrast, November brings warmer conditions, with temperatures ranging from a minimum of 9°C (48°F) to a scorching maximum of 40°C (105°F) and an average of 24°C (75°F). This month sees increased rainfall, accumulating to 27 mm (1.1 in) over 5 days, and the humidity is slightly lower at 44%. For more details, check out San Martin weather in November.
In September, the weather is characterized by a broader temperature range, with minimums dropping to -1°C (31°F) and maximums reaching up to 36°C (97°F). The average temperature settles around a mild 16°C (62°F), accompanied by low precipitation of just 6 mm (0.2 in) over one day and relatively moderate humidity at 51%.
In contrast, December brings warmer conditions, with a minimum temperature of 12°C (54°F) and maximums soaring to 42°C (108°F), resulting in a significantly higher average of 26°C (80°F). Precipitation increases to 24 mm (1.0 in) spread over five days, but the humidity drops to a drier 35%. For more detailed weather information, you can check San Martin weather in December.
September in San Martin brings a refreshing transition as the region shifts from the warmth of summer to the cooler embrace of autumn. With an average temperature of around 16°C (62°F), days are pleasantly mild, although the occasional spike to a maximum of 36°C (97°F) can still make summer linger a little longer. Notably, this month experiences minimal precipitation, with just a single day of rain and an average humidity level of 51%, ensuring that the air feels crisp and invigorating. This unique combination of weather characteristics sets September apart from the hotter, more humid summer months, making it an ideal time for outdoor activities and exploration. Embrace the charm of this month and learn more about the area at San Martin Climate.