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September Weather in Las Heras, Argentina

Last updated: August 22, 2025

In Las Heras, Argentina, the average temperature in September is a comfortable 14°C (57°F). Expect a minimum chill of 0°C (32°F) and the occasional warm spell peaking at 33°C (92°F). During this month, precipitation averages around 21 mm (0.8 in), typically spread over 4 days, while humidity hovers around 51%, adding a refreshing touch to the air.

September Temperature in Las Heras

In September in Las Heras, the average temperature is 14°C (57°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 0°C (32°F). This varied temperature range makes Las Heras an ideal destination for travelers seeking both warmth and cooler climates.

September Weather in Las Heras: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Las Heras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Las Heras, September typically has an average temperature of 14°C (57°F), with highs reaching up to 33°C (92°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec777368625346455057637074
Data source: Temperature data for Las Heras 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 Las Heras

In Las Heras in September, the precipitation amount is 21 mm (0.8 in) over a span of 4 days.

September Precipitation Trends in Las Heras

The chart displays monthly precipitation patterns in Las Heras, 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 Las Heras, September typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec345443453719151421394343
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Las Heras

In Las Heras in September humidity is 51%. With an average temperature of 14°C (57°F), this humidity feels like a comfortable yet slightly cool climate for traveling, making it ideal for outdoor exploration without excessive heat or discomfort.

September Average Humidity in Las Heras

This chart illustrates the average monthly humidity levels in Las Heras, 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 Las Heras is approximately 51%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec40%46%54%65%69%64%65%60%51%49%44%36%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Las Heras

In Las Heras in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Las Heras.

Maximum UV Index Levels in Las Heras for September

The chart shows the monthly maximum UV Index (UVI) for Las Heras 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 Las Heras typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151412864569121415
Data source: Las Heras 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 Las Heras Compares to Other Months

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

This table compares monthly weather conditions in Las Heras, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)34 mm (1.4 inches)40%extreme
February Weather23°C (73°F)54 mm (2.1 inches)46%extreme
March Weather20°C (69°F)43 mm (1.7 inches)54%extreme
April Weather17°C (62°F)45 mm (1.8 inches)65%very high
May Weather12°C (53°F)37 mm (1.4 inches)69%high
June Weather8°C (47°F)19 mm (0.7 inches)64%moderate
July Weather7°C (46°F)15 mm (0.6 inches)65%moderate
August Weather10°C (51°F)14 mm (0.6 inches)60%high
September Weather14°C (57°F)21 mm (0.8 inches)51%very high
October Weather17°C (63°F)39 mm (1.5 inches)49%extreme
November Weather21°C (70°F)43 mm (1.7 inches)44%extreme
December Weather23°C (74°F)43 mm (1.7 inches)35%extreme

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