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September Weather in Lomas de Vallejos, Argentina

Last updated: August 22, 2025

In Lomas de Vallejos, Argentina, the average temperature in September hovers around 20°C (69°F), offering a pleasant climate for visitors. However, be prepared for temperature fluctuations, with minimums dipping to 7°C (45°F) and soaring up to 40°C (103°F). Expect some rain, as the region experiences about 89 mm (3.5 in) of precipitation over 10 days, and enjoy a moderate average humidity of 50%.

September Temperature in Lomas de Vallejos

In September in Lomas de Vallejos, the average temperature is 20°C (69°F), with maximums reaching as high as 40°C (103°F) and minimums dropping as low as 7°C (45°F). Be prepared for a wide range of temperatures if you plan to travel during this month in Lomas de Vallejos.

September Weather in Lomas de Vallejos: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Lomas de Vallejos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lomas de Vallejos, September typically has an average temperature of 20°C (69°F), with highs reaching up to 40°C (103°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec828177726562606468737780
Data source: Temperature data for Lomas de Vallejos 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 Lomas de Vallejos

In Lomas de Vallejos in September, the precipitation amount is 89 mm (3.5 in) over a period of 10 days.

September Precipitation Trends in Lomas de Vallejos

The chart displays monthly precipitation patterns in Lomas de Vallejos, 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 Lomas de Vallejos, September typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec136771321371346945468912215394
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lomas de Vallejos

In Lomas de Vallejos in September humidity is 50%. With an average temperature of 20°C (69°F), this humidity feels like a mild embrace, making it comfortable for leisurely strolls and outdoor adventures.

September Average Humidity in Lomas de Vallejos

This chart illustrates the average monthly humidity levels in Lomas de Vallejos, 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 Lomas de Vallejos is approximately 50%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%70%73%83%85%73%63%44%50%53%66%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lomas de Vallejos

In Lomas de Vallejos in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Lomas de Vallejos.

Maximum UV Index Levels in Lomas de Vallejos for September

The chart shows the monthly maximum UV Index (UVI) for Lomas de Vallejos 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 Lomas de Vallejos typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14141310656710131414
Data source: Lomas de Vallejos 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.

How September Weather in Lomas de Vallejos Compares to Other Months

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

This table compares monthly weather conditions in Lomas de Vallejos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (83°F)136 mm (5.4 inches)76%extreme
February Weather27°C (81°F)77 mm (3.0 inches)70%extreme
March Weather25°C (77°F)132 mm (5.2 inches)73%extreme
April Weather22°C (72°F)137 mm (5.4 inches)83%very high
May Weather18°C (65°F)134 mm (5.3 inches)85%high
June Weather16°C (62°F)69 mm (2.7 inches)73%moderate
July Weather16°C (60°F)45 mm (1.8 inches)63%high
August Weather18°C (64°F)46 mm (1.8 inches)44%high
September Weather20°C (69°F)89 mm (3.5 inches)50%very high
October Weather23°C (73°F)122 mm (4.8 inches)53%extreme
November Weather25°C (77°F)153 mm (6.0 inches)66%extreme
December Weather27°C (80°F)94 mm (3.7 inches)82%extreme

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