September Weather in Maipu, Argentina

Last updated: August 21, 2025

In September, Maipú, Argentina experiences a fascinating transition into spring, characterized by maximum temperatures of 28°C (82°F) and average temperatures around 12°C (54°F). However, the month can be brisk at night, with minimum temperatures dipping to -2°C (28°F). Rainfall is a notable feature, with 74 mm (2.9 in) of precipitation occurring over seven days, contributing to a humidity level of 76%. This combination of warm days and cooler nights, paired with occasional rainfall, creates a dynamic and refreshing climate for both locals and visitors to enjoy.

September Temperature in Maipu

In September, Maipu, Argentina begins to shed the chill of winter, with temperatures gradually warming as spring approaches. The average temperature rises to 12°C (54°F), accompanied by a range that sees nightly lows dipping to -2°C (28°F) and daytime highs reaching a pleasant 28°C (82°F). This shift indicates a clear transition from the preceding colder months: as temperatures steadily increase, the climate invites outdoor activities and the blossoming of local flora. September effectively marks a refreshing beginning, setting the stage for the warmer months ahead while still retaining a hint of the coolness from winter.

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

The chart illustrates September temperature patterns in Maipu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Maipu, 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).
JanFebMarAprMayJunJulAugSepOctNovDec727066625450485054596469
Data source: Temperature data for Maipu generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Maipu

In September, Maipú experiences a notable shift in precipitation patterns, receiving 74 mm (2.9 in) of rain over 7 days, marking a refreshing return to wetter conditions after the drier days of August. This uptick reflects a typical transition as the region moves deeper into spring, paving the way for the lush landscapes that define the season. Comparatively, September's precipitation slightly surpasses the modest figures of August, which recorded only 37 mm, while remaining consistent with the amounts seen earlier in the year, particularly in January and April, which also featured substantial rainfall. As temperatures warm and nature awakens, the September rains play a crucial role in recharging the environment, setting the stage for the vibrant months ahead.

September Precipitation Trends in Maipu

The chart displays monthly precipitation patterns in Maipu, 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 Maipu, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec649392996061603774696970
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Maipu

In September, Maipú experiences a moderate humidity level of 76%, a slight increase from the 69% recorded in August. This uptick signals the transition from the dry winter months to a more humid spring, as humidity continues to rise through the fall. After peaking in May at 86%, the region gradually sees a decline in moisture as the year progresses towards October, where levels drop to 69%. Overall, Maipú's humidity reflects seasonal shifts, showcasing a rich tapestry of climate variations that contribute to the area's lush vineyards and vibrant landscapes.

September Average Humidity in Maipu

This chart illustrates the average monthly humidity levels in Maipu, 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 Maipu is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%70%73%83%86%81%73%69%76%69%66%61%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Maipu

As we transition into September in Maipu, Argentina, the UV Index picks up to 7, signifying a high exposure category and a burn time of about 25 minutes. This increase follows the moderate indices of the winter months, suggesting that as spring arrives, residents and visitors should remain vigilant about sun protection. While it's a relief from the extremes of summer, September serves as a gentle reminder that UV radiation is still significant. As we look ahead, keep an eye on the UV trends; October's forecast indicates another rise, reaching a 10 and moving toward very high exposure. For more detailed information, explore Maipu UV Index.

Maximum UV Index Levels in Maipu for September

The chart shows the monthly maximum UV Index (UVI) for Maipu 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 Maipu typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141210743357101314
Data source: Maipu 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 Maipu

As September arrives in Maipu, Argentina, the sun continues to shine, offering 249 hours of bright daylight—a slight dip from the vibrant summer months but still a delightful experience. This month sits comfortably between the cooler autumn transition and the lingering warmth of late winter, reminding visitors of the summers past, particularly January's impressive 295 hours. While September's sunlight is less abundant than the peak of the season, it still offers a pleasant backdrop for exploring the lush vineyards and enjoying outdoor festivities. As October approaches, the sun makes a resurgence, promising 308 hours of brilliance, setting the stage for a splendid spring ahead. Thus, September serves as a bridge, connecting the sunny vibrancy of winter with the blossoming beauty of springtime in this captivating region.

Monthly Sunshine Duration in Maipu: September Highlighted

The September sunshine duration represents the total number of hours Maipu 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.
JanFebMarAprMayJunJulAugSepOctNovDec295h320h302h246h226h193h202h253h249h308h334h375h
Data source: Maipu September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Maipu During September

September in Maipú, Argentina, presents a unique weather profile, with a sunny probability of only 39%. As the months transition from the cooler winter, sunlight begins to peek through, yet September remains on the lower end of the sunshine spectrum. The trend shows a noticeable increase in sunny days as October approaches, ramping up to a promising 66% chance of sunshine. This month serves as a bridge between the fading winter and the vibrant spring, hinting at brighter days ahead, but those seeking clear skies may want to plan their activities for later in the season.

Percentage of Sunny Days in September in Maipu

The chart illustrates the percentage of sunny days in Maipu 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 Maipu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec56%54%50%62%48%37%50%51%39%66%53%54%
Data source: Maipu September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Maipu in September

In Maipú, Argentina, the September daylight duration marks a notable transition as the days begin to lengthen once again. With 11 hours of daylight, the month is a bridge between the shorter days of winter and the longer stretches of summer. This trend is evident as daylight decreases steadily from January's generous 14 hours down to June and July’s low of 9 hours, before gradually increasing again in September and evolving into the warm, sunlit months of spring. As the seasons shift, residents can look forward to the gradual return of sunlight, heralding the vibrant energy of spring and summer ahead.

Average Daylight Hours in Maipu for September

The chart illustrates the variation in daylight duration in Maipu throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 20m13h 25m12h 15m11h 5m10h 7m9h 39m9h 54m10h 45m11h 52m13h 3m14h 5m14h 37m
Data source: Maipu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Maipu

As September rolls around in Maipú, Argentina, residents can feel the arrival of the spring season not just in blossoming flowers but also in the invigorating average wind speed of 4.1 m/s (9 mph). This marks a noticeable uptick compared to the preceding months, with a consistent trend of increasing wind speeds leading into spring. Following a dip in the late summer months, when speeds hovered around 3.4 to 3.8 m/s, this rise signifies a shift towards livelier conditions. Interestingly, the wind tends to pick up again in November, peaking at 4.3 m/s (10 mph), suggesting that September acts as a gentle precursor, setting the stage for the breezier days of late spring and summer ahead. Thus, September in Maipú not only ushers in warmer weather but also heralds a refreshing increase in wind activity, invigorating the atmosphere and inviting outdoor escapades.

Average September Wind Speed in Maipu

The chart displays monthly wind speed patterns in Maipu, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.83.73.43.43.93.64.03.24.1 m/s3.64.33.4
Data source: Maipu September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Maipu Compares to Other Months

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

September and January exhibit striking differences in weather patterns. In September, temperatures range from a chilly -2°C (28°F) at night to a pleasant 28°C (82°F) during the day, with an average temperature of 12°C (54°F). The month sees around 74 mm (2.9 in) of precipitation over 7 days and a relatively high humidity level of 76%. In contrast, January experiences much warmer conditions, with temperatures ranging from a minimum of 7°C (44°F) to a scorching maximum of 41°C (106°F), and an average of 22°C (73°F). Despite slightly lower precipitation at 64 mm (2.5 in) over 8 days, January enjoys a lower humidity of 59%. For a closer look at the January weather trends, visit Maipu weather in January.

September and February present distinct contrasts in weather. In September, temperatures range from a chilly minimum of -2°C (28°F) to a comfortable average of 12°C (54°F), reaching a maximum of 28°C (82°F). The month sees about 74 mm (2.9 in) of precipitation over 7 rainy days, accompanied by a humidity level of 76%.

In contrast, February brings warmer conditions, with minimum temperatures around 6°C (43°F) and an average of 21°C (70°F), peaking at a maximum of 35°C (96°F). The month experiences slightly higher precipitation at 93 mm (3.7 in) over the same number of rainy days, but with a lower humidity of 70%. For a detailed look at February weather, visit Maipu weather in February.

In September, the weather features a broader temperature range with minimums dropping to -2°C (28°F) and maximums reaching 28°C (82°F), whereas March showcases milder temperatures with lows around 5°C (41°F) and highs peaking at 33°C (92°F). September experiences an average temperature of 12°C (54°F) compared to March's warmer average of 19°C (67°F). Both months see their share of precipitation, with September totaling 74 mm (2.9 in) over seven days, while March has a slightly higher total of 92 mm (3.6 in) spread over ten days. Humidity remains relatively high in both months at 76% in September and slightly lower at 72% in March. For more detailed insights into March weather, visit Maipu weather in March.

When comparing the weather in September and April, we find notable differences in temperature and precipitation. September experiences a broader range in temperature, with minimums dipping to -2°C (28°F) and maximums reaching up to 28°C (82°F), while April tends to be milder, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 29°C (84°F). Precipitation is slightly higher in April at 99 mm (3.9 in) over 8 days, compared to September's 74 mm (2.9 in) over 7 days. Additionally, humidity levels are slightly elevated in April at 82% versus 76% in September, contributing to a generally more humid atmosphere. For more detailed insights, you can check out Maipu weather in April.

When comparing the weather in September and May, we observe that both months have similar average temperatures, around 12°C (54°F). However, September experiences a wider temperature range, with minimums dropping to -2°C (28°F) and maximums reaching 28°C (82°F), while May's temperatures are a bit milder, with minimums at 0°C (32°F) and maximums at 26°C (80°F). Precipitation is slightly higher in September, totaling 74 mm (2.9 in) over 7 days compared to May's 60 mm (2.4 in) over 6 days, and humidity is also higher in May at 86%, compared to 76% in September. For a detailed look at May's weather, you can visit Maipu weather in May.

When comparing the weather in September and June, September tends to be slightly warmer, with average temperatures ranging from a minimum of -2°C (28°F) to a maximum of 28°C (82°F), compared to June's slightly cooler range of -3°C (27°F) to 23°C (73°F). Additionally, September experiences more rainfall, with 74 mm (2.9 inches) over about 7 days, while June sees 61 mm (2.4 inches) spread across just 5 days. Humidity levels are also comparable, with September at 76% and June slightly higher at 81%. For more details on the weather during this month, you can check Maipu weather in June.

When comparing the weather between July and September, September generally presents a warmer and slightly wetter climate. In September, the average temperature rises to 12°C (54°F), with a maximum of 28°C (82°F) and a minimum of -2°C (28°F). In contrast, July sees cooler averages with a minimum of -4°C (26°F) and a maximum of only 22°C (72°F) and an average of 9°C (48°F). Precipitation also varies slightly, with September receiving 74 mm (2.9 in) over 7 days, compared to July's 60 mm (2.4 in) over 8 days. The humidity levels are comparable, with September at 76% and July at 73%. For a more detailed look at July weather in the region, check out Maipu weather in July.

In September, the weather shows a more varied temperature range compared to August, with minimums remaining consistent at -2°C (28°F) but average temperatures rising to 12°C (54°F) and maximums reaching 28°C (82°F). This marks an increase from August, where the average temperature was 10°C (50°F) and maximums peaked at 25°C (78°F). Additionally, September experiences more precipitation at 74 mm (2.9 in) over 7 days, compared to August's 37 mm (1.5 in) over just 5 days. The humidity also increases in September to 76%, up from 69% in August, indicating a more humid climate as the season progresses. For more details on August weather, you can check Maipu weather in August.

In September, the weather is characterized by a wider temperature range, with minimums dropping to -2°C (28°F) and maximums reaching 28°C (82°F), along with an average temperature of 12°C (54°F). The month experiences moderate precipitation of 74 mm (2.9 in) across 7 days and a humidity level of 76%. In contrast, October sees a slight increase in average temperature to 15°C (59°F) and a much warmer maximum of 34°C (93°F), while minimum temperatures rise to 1°C (35°F). Precipitation remains similar at 69 mm (2.7 in) over 8 days, but humidity decreases to 69%. For more specific insights about the weather in October, you can check out Maipu weather in October.

In September, temperatures range from a chilly minimum of -2°C (28°F) to a warm maximum of 28°C (82°F), with an average of about 12°C (54°F). The month experiences substantial precipitation, totaling 74 mm (2.9 in) over 7 days, and the humidity is relatively high at 76%. In contrast, November sees a minimum temperature of 4°C (40°F), an average of 18°C (65°F), and a maximum of 33°C (92°F). Although precipitation slightly decreases to 69 mm (2.7 in) over 9 days, the humidity drops to 66%, making November generally feel warmer and less humid. For more specific details, you can check Maipu weather in November.

In September, the weather is characterized by a broader temperature range, with minimums dipping to -2°C (28°F) and maximums reaching up to 28°C (82°F), resulting in an average of 12°C (54°F). The month experiences relatively high humidity at 76% and 74 mm (2.9 in) of precipitation over about 7 days. In contrast, December brings higher overall temperatures, with minimums at 5°C (41°F) and maximums soaring to 36°C (98°F), leading to a much warmer average of 21°C (69°F). December's humidity is lower at 61%, and precipitation remains similar at 70 mm (2.8 in), but spread over 8 days. For more detailed information on December's specific climate conditions, refer to Maipu weather in December.

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Conclusion: What to Expect From September Weather in Maipu

As September unfolds in Maipú, the weather begins to shift noticeably from the colder winter months, embracing a gentle warmth that hints at the arrival of spring. The maximum temperatures rise, creating a pleasant contrast to the chilly days of July and August, while the average cools down just enough to be refreshing. However, with increased humidity lingering at 76%, and occasional rain - evidenced by about a week of precipitation - the month offers a mixed bag of conditions. This transitional phase allows for vibrant blooms and a lively atmosphere as nature awakens, making it an ideal time for visitors to explore. For a comprehensive overview of the region's weather patterns throughout the year, visit Maipu Climate.