September Weather in Neuquen, Argentina

Last updated: August 21, 2025

In September, Neuquén, Argentina experiences a dynamic climate, showcasing maximum temperatures reaching up to 30°C (86°F), while the average temperature hovers around 12°C (55°F). Evenings can turn brisk with minimum temperatures dipping to -4°C (26°F). The month averages 16 mm (0.6 in) of precipitation, falling over just 2 days, resulting in a generally mild and dry atmosphere. With humidity levels at 60%, the weather offers a refreshing balance, making September a delightful time to explore this vibrant region.

September Temperature in Neuquen

As September unfolds in Neuquén, Argentina, the region experiences a significant shift in temperatures, heralding the arrival of spring. The month starts with a chilly minimum of -4°C (26°F), but quickly transitions to a more pleasant average of 12°C (55°F), peaking at a delightful 30°C (86°F). This upward trend in temperatures signals a break from the winter chill, inviting outdoor enthusiasts to explore the burgeoning landscapes. Compared to the preceding months, September stands as a bridge, combining the remnants of cold with the promise of warmth, making it a refreshing time to visit this vibrant part of Argentina.

September Weather in Neuquen: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Neuquen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Neuquen, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec767468605145444854606873
Data source: Temperature data for Neuquen generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Neuquen

In September, Neuquén experiences a transitional phase in its climatic pattern, with precipitation measuring 16 mm (0.6 in) over just two days of rain. This month mirrors the wetness of March, showing a consistent trend that suggests a revival of rainfall after the drier months of August. The precipitation levels noted not only mark a reprieve from winter's dryness but also indicate a steady buildup as the season shifts into spring. With an increase in rainfall compared to the preceding month, September lays the groundwork for the wetter months ahead, foreshadowing the arrival of more robust precipitation patterns in October and November.

September Precipitation Trends in Neuquen

The chart displays monthly precipitation patterns in Neuquen, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Neuquen, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec771621272133817142719
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Neuquen

In September, Neuquén experiences a noticeable shift in humidity, measuring 60%, a significant drop from the peaks seen in the preceding months of July and June, which recorded 77% and 73% respectively. This decrease signals the onset of spring, as the region transitions from the wet chill of winter into a more temperate climate. Following the summer months, where humidity typically remains lower—culminating in next month's projected 54%—September serves as a bridge, gently easing the air's moisture while still retaining a comfortable level. Overall, the trend reflects a gradual reduction in humidity as the year progresses, with a return to drier conditions anticipated in the latter months.

September Average Humidity in Neuquen

This chart illustrates the average monthly humidity levels in Neuquen, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Neuquen is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec43%45%54%67%72%73%77%73%61%54%47%42%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Neuquen

In September, Neuquén, Argentina, experiences a UV Index of 7, placing it in the high exposure category with a burn time of approximately 25 minutes. As the shift in seasons begins, the UV Index starts to rise again after the winter months, signaling a return to more intense sun exposure. This trend of increasing UV levels is characteristic of the approaching spring, as it transitions from the moderate levels seen in mid-year. With summer on the horizon, it’s crucial to stay vigilant about sun safety. For more detailed information about the UV Index throughout the year, visit Neuquen UV Index.

Maximum UV Index Levels in Neuquen for September

The chart shows the monthly maximum UV Index (UVI) for Neuquen in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Neuquen typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141310643357101314
Data source: Neuquen September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Neuquen

As September arrives in Neuquén, Argentina, residents and visitors alike can bask in an ample 303 hours of sunshine, which marks a delightful transition towards the warmer months. This month showcases a resurgence in daylight after the cooler winter, with sunshine hours steadily increasing from the low of 199 hours in June. Following a series of gradually rising trends, September acts as a prelude to the more radiant October, which boasts 346 hours of sun. The consistent monthly improvements highlight Neuquén's shift from winter's embrace, inviting outdoor adventures and moments of joy in the sunlight. As the days grow longer and brighter, September shines as a beautiful reminder of nature's rhythm and the warming promise of the seasons ahead.

Monthly Sunshine Duration in Neuquen: September Highlighted

The September sunshine duration represents the total number of hours Neuquen experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec326h342h347h278h244h199h229h274h303h346h374h402h
Data source: Neuquen September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Neuquen During September

September in Neuquén, Argentina, welcomes the arrival of spring with a promising 66% chance of sunny weather. This figure represents a slight dip from the sunnier months of January and February, but it's a solid indicator of pleasant days ahead as the region transitions from winter. Following a cooler August, where the sun shone 62% of the time, September's sun exposure marks a gradual increase as it moves toward the warmer months. This upward trend in sunshine continues into October and November, making September an inviting time for outdoor activities as residents and visitors alike revel in the fresh blooms and mild temperatures.

Percentage of Sunny Days in September in Neuquen

The chart illustrates the percentage of sunny days in Neuquen throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Neuquen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec70%79%69%60%48%45%68%62%66%72%73%77%
Data source: Neuquen September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Neuquen in September

September in Neuquén, Argentina, marks a notable transition in daylight duration as the region welcomes spring. With 11 hours of daylight, this month sees a resurgence from the shorter days of winter, mirroring a gentle awakening following the lengthy nights. The pattern of daylight gradually increases as the year progresses; following September, October brings about 13 hours of sunlight, hinting at the longer, brighter days to come. This rhythm of fluctuating daylight cultivates an atmosphere of renewal and optimism, as residents relish the return of the sun after the winter months.

Average Daylight Hours in Neuquen for September

The chart illustrates the variation in daylight duration in Neuquen throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 31m13h 31m12h 16m11h9h 58m9h 27m9h 44m10h 39m11h 51m13h 7m14h 15m14h 49m
Data source: Neuquen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Neuquen

As September rolls into Neuquen, Argentina, the wind begins to pick up again, showcasing an average speed of 3.8 m/s (8 mph). This month marks a subtle transition from the summer calm, where winds gradually declined over the preceding months. After a dip to 2.6 m/s in April, the breeze strengthens through the fall, setting the stage for the swifter gusts of October and November, which reach 4.7 m/s (10 mph) and 4.4 m/s (10 mph), respectively. The refreshing September air provides a gentle reminder of the region's dynamic weather patterns, inviting locals and visitors alike to embrace the seasonal shifts.

Average September Wind Speed in Neuquen

The chart displays monthly wind speed patterns in Neuquen, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.33.83.72.63.33.23.13.53.8 m/s4.74.44.1
Data source: Neuquen September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Neuquen Compares to Other Months

Weather in Neuquen varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Neuquen, focusing on differences in temperature, rainfall, humidity, and UV levels.

In September, the weather is quite variable, with temperatures ranging from a chilly -4°C (26°F) at night to a warm 30°C (86°F) during the day, resulting in an average temperature of 12°C (55°F). The month sees about 16 mm (0.6 in) of precipitation over just two days, making it a relatively wet month with a humidity level around 60%.

In contrast, January experiences a much hotter climate, with temperatures ranging from a mild 8°C (46°F) at night to a scorching 41°C (107°F) during the day, averaging 24°C (76°F). Precipitation drops significantly to only 7 mm (0.3 in) over just one day, accompanied by a lower humidity of 43%. For more detailed information about January weather, check Neuquen weather in January.

September and February present notably different weather patterns. In September, temperatures range from a chilly minimum of -4°C (26°F) to a comfortable average of 12°C (55°F), peaking at a warm 30°C (86°F). This month sees about 16 mm (0.6 in) of precipitation over two days, with humidity levels around 60%. In contrast, February experiences much milder conditions, with temperatures ranging from a minimum of 7°C (46°F) to a scorching maximum of 39°C (103°F), averaging a balmy 23°C (74°F). Precipitation is lighter, with only 7 mm (0.3 in) falling on just one day and humidity at a lower 45%. For more detailed information, visit Neuquen weather in February.

In comparing the weather of September and March, we see notable differences in temperature and humidity. September experiences cooler conditions, with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 30°C (86°F) and an average of 12°C (55°F). In contrast, March boasts milder temperatures, with a minimum of 4°C (40°F), an average of 20°C (68°F), and a high of 38°C (101°F). Both months receive the same amount of precipitation at 16 mm (0.6 in) over two days, although March has slightly lower humidity at 54% compared to September's 60%. For more detailed information, you can check out Neuquen weather in March.

In comparison to April, September typically experiences a broader range of temperatures, with a minimum of -4°C (26°F) and a maximum of 30°C (86°F), resulting in an average of 12°C (55°F). Meanwhile, April sees slightly milder conditions, with temperatures ranging from -2°C (29°F) to a warmer maximum of 32°C (89°F), and an average of 16°C (61°F). Precipitation is somewhat different as well; September has 16 mm (0.6 in) over just 2 days, while April receives 21 mm (0.8 in) across 3 days. Humidity levels are also higher in April at 67%, compared to September's 60%. For more detailed information, check Neuquen weather in April.

When comparing the weather in September and May, one can see distinct differences in temperature and precipitation. In September, temperatures can range from a low of -4°C (26°F) to a high of 30°C (86°F), with an average of 12°C (55°F) and relatively low humidity at 60%. Precipitation is minimal, averaging just 16 mm (0.6 in) over two days. In contrast, May experiences slightly cooler temperatures, with a minimum of -5°C (23°F) and a maximum of 27°C (80°F), and an average of 10°C (51°F). The month sees increased rainfall at 27 mm (1.1 in) over five days, along with higher humidity at 72%. For more details on the climate in May, you can visit Neuquen weather in May.

September and June present contrasting weather patterns. In September, temperatures range from a chilly minimum of -4°C (26°F) to a warm maximum of 30°C (86°F), with an average of 12°C (55°F). The month experiences relatively low precipitation, totaling 16 mm (0.6 in) over just 2 days, and the humidity is around 60%. In contrast, June sees cooler temperatures, with a minimum of -5°C (22°F), an average of 7°C (45°F), and a maximum of 23°C (74°F). Precipitation is slightly higher at 21 mm (0.8 in) across 4 days, and humidity levels are elevated at 73%. For more specific insights about June weather, you can visit Neuquen weather in June.

In comparing the weather between September and July, September generally boasts a wider temperature range, with minimum temperatures dropping to -4°C (26°F) and maximums soaring up to 30°C (86°F), resulting in an average of 12°C (55°F). In contrast, July experiences cooler overall temperatures, with a minimum of -4°C (24°F) and a maximum of 22°C (71°F), leading to a significantly lower average of 6°C (44°F). Additionally, September tends to be drier, with only 16 mm (0.6 in) of precipitation over just 2 days, compared to July's 33 mm (1.3 in) over 3 days, and exhibits lower humidity levels at 60% compared to July's 77%. For more details on July weather, you can visit Neuquen weather in July.

In comparing the weather between September and August, September displays a broader temperature range, with minimums dropping to -4°C (26°F) but expanding average highs to 30°C (86°F), contrasting with August's maximum of 25°C (77°F). While September experiences slightly increased precipitation at 16 mm (0.6 in) and similar rainy days as August, it has lower humidity at 60% compared to August's 73%. This suggests that September brings warmer days and drier air, making it feel quite different from the cooler and more humid conditions of August. For more detailed information on August's weather, you can visit Neuquen weather in August.

In September, the weather shows a wider temperature range with minimums dropping to -4°C (26°F) and maximums reaching up to 30°C (86°F). The average temperature sits at 12°C (55°F) with relatively low humidity at 60%, and only 16 mm (0.6 in) of precipitation over 2 days.

In contrast, October brings milder conditions with a minimum temperature of 1°C (34°F) and a higher average of 15°C (60°F), while maximums can climb to 33°C (91°F). Precipitation slightly decreases to 14 mm (0.6 in) over 3 days, and humidity drops to 54%. For more detailed information on the weather in October, you can visit Neuquen weather in October.

In comparing the weather between September and November, we see a notable shift in temperatures and overall conditions. September experiences a wider range of temperatures, with a minimum of -4°C (26°F) and a maximum of 30°C (86°F), while November boasts a milder minimum of 5°C (41°F) and a higher maximum reaching 36°C (96°F). Additionally, September has low precipitation levels, with only 16 mm (0.6 in) over just 2 days, versus November's slightly higher rainfall of 27 mm (1.0 in) spread across 4 days. Furthermore, the humidity in September is at 60%, compared to November's drier atmosphere at 47%. This shift indicates a transition to warmer and more humid conditions as the year progresses. For more detailed information, you can check Neuquen weather in November.

In September, the weather exhibits a marked range, with temperatures ranging from a chilly -4°C (26°F) to a warm 30°C (86°F) and an average of 12°C (55°F). This month typically sees low humidity at 60% and only 16 mm (0.6 in) of precipitation over two days. In contrast, December presents a much warmer climate, featuring minimum temperatures of 8°C (47°F) and highs reaching up to 38°C (101°F), with an average temperature of 23°C (73°F). Although December has slightly more precipitation at 19 mm (0.8 in) on three days, the humidity drops to 42%. For more detailed information, check out Neuquen weather in December.

Compare Neuquen's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Neuquen

As September rolls into Neuquén, the weather begins to shift dramatically from the chill of winter, ushering in warmer temperatures that can reach up to a pleasant 30°C (86°F). This month offers a refreshing average of 12°C (55°F), with an occasional dip to a minimum of -4°C (26°F), marking a distinctive transition from the preceding months. While precipitation is minimal at just 16 mm (0.6 in) over a couple of days, the 60% humidity adds to the invigorating feel of spring in the air. This blend of conditions creates an ideal time for outdoor activities as nature awakens from its winter slumber. For a deeper dive into what to expect throughout the year, check out the detailed insights in Neuquen Climate.