Last updated: August 21, 2025
In September, Trelew, Argentina experiences a dynamic shift in weather, with temperatures ranging from a chilly 0°C (33°F) at night to a warm 31°C (88°F) during the day. The average temperature hovers around a comfortable 12°C (54°F), making it an ideal time for outdoor activities. Despite the warmth, the month sees 14 mm (0.5 in) of precipitation spread across about 3 days, contributing to the region's lush spring landscape. With humidity levels at 68%, the air carries a refreshing quality, providing a perfect backdrop to explore this vibrant area.
As September unfolds in Trelew, Argentina, the temperatures begin to show signs of warming, marking the transition to spring. With a minimum of 0°C (33°F) and an average of 12°C (54°F), mornings remain brisk, while afternoons can see the mercury rise to a pleasant 31°C (88°F). This month reflects a notable shift from the colder winter months, where temperatures dipped below freezing, to a more moderate climate characterized by gradual increases. The average also climbs steadily from the cooler early months, hinting at the vibrant days ahead filled with outdoor activities and the awakening of local flora. As nature reawakens, September in Trelew is a time of renewal and optimism, inviting both residents and visitors to embrace the warmth and beauty of the season.
In September, Trelew experiences a modest precipitation total of 14 mm (0.5 in), which falls in line with the city's pattern of relatively low rainfall as the seasons transition. This month typically sees about 3 days of rain, similar to both October and November, indicating a slight uptick from the winter months. Notably, after the cooler, wetter conditions in June with 45 mm, the precipitation begins to stabilize, suggesting a gradual return to drier conditions. As the spring approaches, the overall trend in Trelew reflects a progressive shift towards warmer, less rainy days, creating a balance between the remnants of winter and the promise of summer ahead.
As September unfolds in Trelew, Argentina, the region experiences a notable shift in humidity, settling at 68%. This marks a decrease from the peak of 78% observed during the colder months of July and August, signaling the transition toward spring. The gradual rise in humidity from 51% in January to a high of 78% in July reflects a pattern of increasing moisture as the seasons change. However, come October, a further decline to 60% suggests that the humidity levels will continue to ebb, creating a refreshing balance as the warmer months approach. Overall, September serves as a pivotal point, bridging the relatively humid winter conditions to the more moderate climate ahead.
In September, Trelew, Argentina, experiences a notable transition in UV Index levels, reflecting a shift from the moderate to the high category with a UV Index of 6 and a burn time of 25 minutes. This increase marks a departure from the lower readings of winter months, where the index dipped as low as 2 in both June and July. As the spring season approaches, sun exposure becomes more critical, requiring vigilance for skin protection. Given the previous months' gradual rise, residents and visitors are advised to adjust their sun safety practices accordingly. For detailed insights, you can check the Trelew UV Index.
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As September unfolds in Trelew, Argentina, the sun shines brightly for an impressive 305 hours, signaling a harmonious transition from the colder months. This month’s sunlight marks a notable recovery from the winter dip, particularly following the significantly lower hours of 205 in June and 217 in July. With days lengthening and warmth gradually increasing, September serves as a prelude to the vibrant energy of spring. The sunny vibes will only amplify in October, which boasts a dazzling 352 hours of sunshine. Overall, September captures that perfect blend of lingering winter coolness and the promise of the bright, sunny days that lie ahead.
As September rolls into Trelew, Argentina, the likelihood of sunny weather continues to brighten as we transition from winter to spring. With a 61% chance of sunshine, this month exhibits a noticeable uptick compared to the preceding colder months, suggesting a welcome return of warmth and light. Following a gradual dip in sunny days from January's peak of 73% down to a low of 48% in May, September marks a turning point, hinting at more favorable conditions ahead. As the days lengthen and temperatures rise, locals and visitors alike can look forward to enjoying a more cheerful and vibrant atmosphere as October approaches, when the sun shines even more prominently with 67% likelihood.
In September, Trelew, Argentina, experiences a gentle shift as daylight duration increases to 11 hours, marking a transition from the chill of winter towards the warmth of spring. This month follows the consistent pattern witnessed throughout the year—starting from a robust 14 hours in January, daylight gradually diminishes to a low of 9 hours during the mid-year months before beginning its ascent once more. As September greets the promise of longer days ahead, residents can enjoy the gradual return of sunlight, leading to a vibrant and refreshing atmosphere as plants and wildlife awaken from their winter slumber. This rhythmic dance of daylight not only highlights seasonal change but also invites outdoor pursuits, celebrating the beauty of Trelew's shifting seasons.
As September arrives in Trelew, Argentina, the average wind speed settles at a gentle 4.6 m/s (10 mph), marking a slight dip from the breezy heights of winter. After months of consistent winds averaging around 4.8 m/s during July and August, this transition ushers in a period of relative calm, hinting at the more subdued conditions that often characterize the early spring. However, with the approaching summer months, a noticeable uptick in wind speeds is anticipated, as seen in October's expected rise to 5.6 m/s (12 mph). This rhythm of wind not only shapes the landscape but also embodies the dynamic character of Trelew's climate, captivating those who embrace both its softer whispers and spirited gusts.
Weather in Trelew varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Trelew, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing September and January weather, there are notable differences in both temperature and humidity. September experiences cooler conditions with minimum temperatures dropping to 0°C (33°F) and average highs around 31°C (88°F), along with a higher humidity level of 68%. This month sees about 14 mm (0.5 in) of precipitation over three days. In contrast, January offers much warmer weather, with minimum temperatures at 8°C (47°F) and maximums soaring up to 41°C (106°F). The humidity drops to 51%, and precipitation is minimal, averaging only 7 mm (0.3 in) over just one day. For more specific information on January weather, visit Trelew weather in January.
In September, temperatures in Trelew range from a cool 0°C (33°F) at night to a warm 31°C (88°F) during the day, with an average temperature of 12°C (54°F). This month typically sees about 14 mm (0.5 in) of precipitation over three days and maintains a humidity level of 68%. In contrast, February boasts a milder temperature range, with minimum temperatures at 7°C (45°F) and maximums soaring up to 40°C (104°F), averaging around 21°C (70°F). While February's precipitation is slightly lower at 11 mm (0.4 in) over just two days, the humidity drops to a more comfortable 54%. For more details on February weather, you can check Trelew weather in February.
September and March present notable differences in weather patterns. In September, temperatures range from a chilly minimum of 0°C (33°F) to a warm maximum of 31°C (88°F), with an average of 12°C (54°F). The month sees relatively low precipitation at 14 mm (0.5 in) over about 3 days, accompanied by a humidity level of 68%. In contrast, March is generally warmer, with temperatures fluctuating from 5°C (41°F) to a peak of 36°C (96°F) and averaging 19°C (66°F). This month experiences higher precipitation amounts totaling 38 mm (1.5 in) spread over 5 days, though with slightly lower humidity at 62%. For a more detailed understanding of March weather dynamics, you can explore Trelew weather in March.
September and April present contrasting weather patterns, with notable differences in temperatures and precipitation. In September, temperatures range from a chilly minimum of 0°C (33°F) to a warm maximum of 31°C (88°F), with an average of 12°C (54°F). The month sees relatively light rainfall of 14 mm (0.5 in) over 3 days, coupled with humidity at 68%. In contrast, April experiences slightly cooler minimum temperatures, dipping to -1°C (30°F), but boasts a higher average of 15°C (60°F) and a maximum that can reach 33°C (92°F). Moreover, April has increased precipitation of 20 mm (0.8 in) over the same number of days, with humidity at a slightly lower 65%. For more details, you can check Trelew weather in April.
September and May present quite similar yet distinct weather characteristics. In September, temperatures range from a minimum of 0°C (33°F) to a maximum of 31°C (88°F), with an average of 12°C (54°F). The month sees about 14 mm (0.5 in) of precipitation over approximately three days, accompanied by a humidity level of 68%. Conversely, May experiences slightly lower temperatures with a minimum of -4°C (25°F) and a maximum of 28°C (82°F), while the average hovers around 11°C (52°F). Although May has a marginally higher precipitation of 16 mm (0.6 in) over four days and slightly higher humidity at 71%, the overall feel of the two months is quite similar. For more details, check out Trelew weather in May.
When comparing the weather in September and June, it's clear that September tends to be warmer. In September, temperatures can range from a chilly 0°C (33°F) at night to a balmy 31°C (88°F) during the day, while June sees cooler temperatures with a minimum of -4°C (24°F) and a maximum of just 21°C (69°F). Additionally, September experiences lower precipitation, with only 14 mm (0.5 in) over 3 days, compared to June's 45 mm (1.8 in) over 4 days. Humidity levels are also slightly lower in September at 68%, compared to 77% in June, making September generally more comfortable. For more details, check out Trelew weather in June.
The weather in September is generally warmer and more variable compared to July. In September, temperatures range from a chilly 0°C (33°F) at night to a warm 31°C (88°F) during the day, with an average temperature of 12°C (54°F). In contrast, July experiences cooler temperatures, with a minimum of -6°C (22°F) and a maximum of 20°C (69°F), averaging only 7°C (45°F).
Precipitation is slightly lower in September, with 14 mm (0.5 in) over 3 days, compared to July’s 17 mm (0.7 in) over 4 days. Humidity levels are also higher in July at 78%, while September's humidity sits at 68%. For more insights into the July weather, you can check Trelew weather in July.
In comparing the weather of September and August, September generally offers warmer temperatures with a minimum of 0°C (33°F) and an average of 12°C (54°F), peaking at a high of 31°C (88°F). Conversely, August is cooler, with temperatures ranging from a minimum of -4°C (25°F) to an average of 9°C (49°F) and a maximum of 25°C (77°F). Additionally, September experiences slightly less precipitation, totaling 14 mm (0.5 in) over three days, compared to August's 17 mm (0.7 in) across four days. Humidity levels are also higher in August at 78%, compared to September's 68%. For more detailed information on August weather, you can refer to Trelew weather in August.
September and October present a transition in weather patterns, with both months experiencing relatively mild conditions. In September, temperatures range from a chilly minimum of 0°C (33°F) to a warm maximum of 31°C (88°F), while the average sits at 12°C (54°F). The month sees about 14 mm (0.5 in) of precipitation over three days, accompanied by a humidity level of 68%.
In comparison, October shows a slight dip in minimum temperatures, reaching -1°C (30°F), yet it maintains a higher average of 15°C (59°F) and peaks at a maximum of 32°C (89°F). Precipitation remains consistent at 14 mm (0.6 in) over three days, but humidity levels decrease to 60%. For more details on weather conditions in October, you can check Trelew weather in October.
September and November exhibit contrasting weather patterns. In September, temperatures range from a minimum of 0°C (33°F) to a maximum of 31°C (88°F), with an average temperature of 12°C (54°F). The month sees relatively low precipitation, accumulating just 14 mm (0.5 in) over three days, with humidity at 68%. In contrast, November experiences warmer conditions, with temperatures starting at 5°C (40°F) and peaking at 37°C (98°F), averaging 18°C (64°F). Rainfall increases to 25 mm (1.0 in) over the same three days, but humidity drops to a more comfortable 54%. For more detailed information, you can check out Trelew weather in November.
September and December exhibit notable differences in weather patterns. In September, temperatures range from a cool minimum of 0°C (33°F) to a maximum of 31°C (88°F), with an average of 12°C (54°F). The month sees a modest amount of rainfall at 14 mm (0.5 in) over three days, coupled with a relatively high humidity of 68%. In contrast, December experiences much warmer weather, with temperatures fluctuating between a minimum of 6°C (44°F) and a scorching maximum of 38°C (100°F), averaging around 20°C (69°F). Precipitation increases slightly to 16 mm (0.6 in), but this occurs over only two days, and the humidity drops to a more comfortable 48%. For more details on December weather, visit Trelew weather in December.
September in Trelew marks a delightful transition as the weather begins to warm up, departing from the cold grip of winter. With maximum temperatures reaching a pleasant 31°C (88°F) and an average of 12°C (54°F), the month stands out with its vibrant blend of warmth and crispness. Unlike the wetter months that typically characterize other seasons, September boasts only a modest 14 mm of precipitation over just three days, allowing for ample sunshine and outdoor activities. The humidity lingers around 68%, providing just enough moisture to keep the air feeling fresh and invigorating. For a deeper dive into how September's climate fits within the broader seasonal patterns of the region, explore the full details here: Trelew Climate.