Last updated: August 21, 2025
In September, El Calafate experiences a transition from winter's chill to early spring's embrace, characterized by average temperatures hovering around 3°C (38°F). Visitors can expect maximum daytime temperatures reaching up to 15°C (59°F), while nighttime lows can drop to a brisk -6°C (22°F). With precipitation totaling 66 mm (2.6 in) over approximately 11 days, the month brings an 84% humidity level that contributes to a vibrant, misty landscape. September is a month of change, perfect for adventurers seeking to experience the unique beauty of Patagonia as it awakens from its winter slumber.
In September, El Calafate begins to shake off the chill of winter, showcasing a gradual rise in temperatures that hints at the approaching spring. With minimums hovering around -6°C (22°F) and daily averages reaching 3°C (38°F), the town starts to thaw, inviting visitors to appreciate its stunning landscapes. The highest temperatures peak at 15°C (59°F), offering a refreshing reprieve from the harsher winter months. This transitional period marks a shift from the frigid temperatures of July and August, as the community eagerly anticipates the warmth of October and the bloom of nature. Travelers can expect cool days ideal for exploration, making September an excellent choice for those wishing to experience the stunning beauty of Patagonia.
In September, El Calafate experiences a moderate shift in precipitation patterns, receiving 66 mm (2.6 in) of rainfall over 11 days. Compared to the preceding winter months, where precipitation hovered around 50 to 60 mm, September marks a subtle increase, indicating the gradual transition to spring. This increase is complemented by a slight uptick in both rainfall and the number of wet days, suggesting that the region is waking up from the dry spell of winter. As the month progresses, the promise of blossoming landscapes becomes evident, making September a pivotal time for exploring the beauty of El Calafate under its rejuvenated skies.
In September, humidity in El Calafate, Argentina registers at a comfortable 84%, marking a slight decrease from the preceding months’ peak levels. This shift signifies a transition from the high humidity of winter, where values reached 90% in July and 89% in June, to more moderate conditions as spring approaches. The trend reveals a gradual decline in humidity levels from August’s 87%, continuing the pattern of a gradual easing after the winter season. As the region emerges from colder months, these changes in humidity contribute to a refreshing atmosphere, setting the stage for the stunning landscapes that define this picturesque locale.
As winter transitions to spring in September, El Calafate experiences a moderate UV Index of 5, indicating a cautionary level of sun exposure. With a burn time of 30 minutes, this month marks a notable increase from the previous months where the index was lower. Following the patterns observed throughout the year, it’s evident that UV levels are beginning to rise as the days grow longer and warmer. This trend will continue into October when the UV Index reaches 8. For anyone enjoying the beautiful landscapes of El Calafate, being aware of the UV Index is essential for ensuring a safe and enjoyable outdoor experience. For more details, check the full El Calafate UV Index.
UV Risk Categories
September brings a delightful shift in El Calafate, Argentina, as the days grow longer and sunnier with 254 hours of sunshine, making it a picturesque transition from winter to spring. Following the chillier winter months, which see a dip in sunlight, the increased hours in September signal the start of warmer days—a welcoming reprieve for locals and visitors alike. As the month progresses, it paves the way for even more sun in the coming months, culminating in October's impressive 332 hours and November's record-breaking 345 hours. This trend not only enhances the natural beauty of El Calafate but also invites exploration of its stunning landscapes, making September an ideal time to soak up the sun and experience the charm of this magnificent region.
In El Calafate, Argentina, the likelihood of sunny weather in September hovers around 37%, indicating a modest increase in sunshine as the region transitions from winter to spring. While September's sun chance is notably better than the gloomier winter months—particularly June and July—it's still lower than the vibrant peak of late spring and summer, where chances soar to about 49% in October and 52% in November. Observing these trends, it's clear that as the year progresses, El Calafate gradually sheds its wintry chill, inviting visitors to enjoy more sunny days amidst breathtaking landscapes.
As the seasons shift in El Calafate, Argentina, September brings a refreshing resurgence of daylight, with 11 hours of bright sunshine replacing the more subdued weeks of winter. This month marks a noticeable increase as the days grow longer after the lengthy dark stretches of June to August, which only offered 8 to 9 hours of daylight. In September, the balance of light begins to sway back towards summer's warmth, a precursor to October's further extension to 13 hours. It’s a compelling reminder of nature's rhythm, as this gradual increase in daylight heralds the arrival of spring and the vibrant life that will soon bloom in this stunning region.
In September, El Calafate experiences a gentle breeze with an average wind speed of 1.8 m/s (4 mph), marking a slight increase from the calmness of the winter months. This transitional period heralds the arrival of spring, as wind speeds begin to gradually pick up following a low in June and July. Compared to the tranquil summer months of January through March, where winds linger around 3.1 m/s (7 mph), September's softness whispers of the changes to come. As the year progresses, we can expect a return to brisker winds, with October ramping up to 3.0 m/s (7 mph), reminding us that the vibrant energy of spring is just around the corner.
Weather in El Calafate varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in El Calafate, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in September to that of January, noteworthy differences emerge. September tends to be cooler, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 15°C (59°F), while January enjoys milder conditions, with temperatures varying from a minimum of 1°C (34°F) to a maximum of 25°C (77°F). Precipitation levels are fairly similar, with September experiencing 66 mm (2.6 in) over 11 days and January seeing slightly less at 61 mm (2.4 in) over 13 days. Despite the relatively close levels of precipitation, the higher humidity in September at 84% compared to January's 80% contributes to a different feel in the air. For a more detailed look at conditions during this warmer month, check out El Calafate weather in January.
September weather is characterized by cooler temperatures, with a minimum of -6°C (22°F) and an average of 3°C (38°F), reaching a maximum of 15°C (59°F). It experiences moderately high humidity at 84% and receives about 66 mm (2.6 in) of precipitation over 11 days. In contrast, February brings warmer conditions, with a minimum of 1°C (35°F) and an average temperature of 12°C (54°F), peaking at a maximum of 28°C (83°F). While February has slightly higher precipitation at 77 mm (3.0 in) over 12 days, the humidity remains similar at 83%. For more details, check out El Calafate weather in February.
September and March showcase distinct weather patterns. In September, temperatures range from a chilly -6°C (22°F) at night to a mild 15°C (59°F) during the day, with an average of 3°C (38°F). The month sees about 66 mm (2.6 in) of precipitation over 11 days and maintains a high humidity level of 84%. In contrast, March enjoys a more temperate climate, featuring minimum temperatures of -1°C (31°F) and maximums reaching 22°C (71°F), with an average of 10°C (50°F). However, it experiences slightly more precipitation at 80 mm (3.2 in) across 15 days, with humidity hovering around 82%. For a detailed look at March weather in El Calafate, please visit El Calafate weather in March.
When comparing the weather in September and April, it becomes clear that both months experience chilly temperatures and notable humidity. September features a minimum temperature of -6°C (22°F) and an average of 3°C (38°F), with a maximum reaching 15°C (59°F). Conversely, April sees a slight increase, with minimums around -2°C (28°F) and averages of 7°C (44°F), peaking at 19°C (66°F). Precipitation is more abundant in April, totaling 91 mm (3.6 in) over 15 days, compared to September's 66 mm (2.6 in) over 11 days. Additionally, humidity levels are quite similar, with September at 84% and April at 86%. For more detailed information on this month, you can explore El Calafate weather in April.
When comparing the weather in September and May, it is evident that both months experience chilly temperatures, but September tends to be slightly warmer overall. In September, average temperatures range from a minimum of -6°C (22°F) to a maximum of 15°C (59°F), while May shows slightly milder conditions, with minimums of -5°C (23°F) and a maximum of 14°C (57°F). Precipitation is more frequent in May, with 75 mm (3.0 in) over 14 days compared to September's 66 mm (2.6 in) across 11 days. Additionally, humidity levels are a bit higher in May at 87%, compared to September's 84%. For more detailed insights on May weather, you can check El Calafate weather in May.
When comparing the weather in September and June, we observe some notable differences. September typically sees higher average temperatures, with a range from -6°C (22°F) to a maximum of 15°C (59°F), while June's temperatures are cooler, ranging from -9°C (15°F) to a maximum of 10°C (51°F). In terms of precipitation, September experiences slightly more rainfall at 66 mm (2.6 in) over 11 days compared to June's 54 mm (2.1 in) across 12 days. Additionally, humidity levels are comparable, with September at 84% and June at 89%. For a detailed breakdown of June's weather, you can visit El Calafate weather in June.
In comparing the weather of September and July, September generally offers milder temperatures with a minimum of -6°C (22°F) and an average of 3°C (38°F), peaking at a maximum of 15°C (59°F). In contrast, July experiences slightly colder conditions, with temperatures ranging from a minimum of -8°C (18°F) to a maximum of 8°C (47°F) and an average of 0°C (32°F). In terms of precipitation, September sees a total of 66 mm (2.6 in) over 11 days, while July has slightly less at 59 mm (2.3 in) but over a longer duration of 13 days. Additionally, the humidity is somewhat lower in September at 84% compared to the higher 90% in July. For more detailed information about July weather, you can visit El Calafate weather in July.
In comparing the weather between August and September, September tends to be slightly warmer, with average temperatures reaching 3°C (38°F) compared to August's average of 1°C (35°F). The maximum temperature in September rises to 15°C (59°F), which is a notable increase from August's maximum of 13°C (55°F). While September experiences a total precipitation of 66 mm (2.6 in) over 11 days, August has a slightly higher precipitation of 72 mm (2.8 in) over 13 days. Humidity levels are relatively consistent, with September at 84% and August slightly higher at 87%. For more detailed information on August weather, you can visit El Calafate weather in August.
September and October showcase a gradual transition in weather patterns, with October typically experiencing slightly warmer temperatures. In September, temperatures range from a minimum of -6°C (22°F) to a maximum of 15°C (59°F), while October sees a slightly lower minimum of -7°C (20°F) and a higher maximum of 18°C (65°F), resulting in an average increase from 3°C (38°F) to 6°C (42°F). Precipitation also increases, with September recording 66 mm (2.6 in) over 11 days, compared to October's 76 mm (3.0 in) across 14 days. Humidity remains high in both months, hovering around 84% in September and 83% in October, contributing to a damp and chilly atmosphere. For a detailed look at what to expect, check out El Calafate weather in October.
In September, temperatures range from a chilly -6°C (22°F) to a maximum of 15°C (59°F), with an average of 3°C (38°F). The month sees about 66 mm (2.6 in) of precipitation spread over 11 days, along with a high humidity level of 84%. In contrast, November offers a milder climate, with temperatures varying from -2°C (29°F) to a warm 21°C (71°F), and an average temperature of 9°C (48°F). The precipitation slightly decreases to 61 mm (2.4 in) over the same number of rainy days (11), with humidity at 81%. For more details, check out El Calafate weather in November.
In September, the weather is notably cooler with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 15°C (59°F), resulting in an average temperature of around 3°C (38°F). The month experiences significant humidity at 84%, along with 66 mm (2.6 in) of precipitation over 11 days. In contrast, December brings milder conditions with a temperature range that varies from a minimum of 1°C (34°F) to a maximum of 26°C (78°F), and an average temperature of 11°C (53°F). This month sees slightly less precipitation, with 57 mm (2.2 in) falling over 12 days, while humidity drops slightly to 82%. For more details about the December weather, visit El Calafate weather in December.
As September unfolds in El Calafate, the weather begins its transition from the chill of winter to the invigorating embrace of spring. With temperatures gradually rising, it contrasts sharply with the frigid conditions of the previous months, moving from bitter lows to a more moderate average. However, visitors should prepare for occasional drizzles, as increased precipitation and high humidity levels can create a mystical ambiance, enveloping the stunning landscapes in a soft veil. This unique blend of cooler temperatures with bursts of life makes September an ideal time to experience the beauty of El Calafate. For a detailed look at what to expect throughout the year, explore El Calafate Climate.