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September Weather in Las Lajitas, Argentina

Last updated: August 22, 2025

In September, the average temperature in Las Lajitas, Argentina hovers around 21°C (69°F). However, be prepared for extremes, as temperatures can dip as low as 3°C (38°F) and soar up to 40°C (105°F). Rainfall is modest, with about 16 mm (0.6 in) spread over 4 days, and the average humidity sits at a comfortable 53%.

September Temperature in Las Lajitas

In September in Las Lajitas, the average temperature is 21°C (69°F). Maximums can reach 40°C (105°F) and minimums can be as low as 3°C (38°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates September temperature patterns in Las Lajitas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Las Lajitas, September typically has an average temperature of 21°C (69°F), with highs reaching up to 40°C (105°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec797674706357576269747779
Data source: Temperature data for Las Lajitas 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 Lajitas

In Las Lajitas in September, the precipitation amount is 16 mm (0.6 in) over a span of 4 days.

September Precipitation Trends in Las Lajitas

The chart displays monthly precipitation patterns in Las Lajitas, 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 Lajitas, September typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec15815512910237181181687108142
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Las Lajitas

In Las Lajitas in September, humidity is 53%. With an average temperature of 21°C (69°F), this humidity feels like a refreshing embrace; perfect for exploring the sights without feeling too sticky or uncomfortable.

September Average Humidity in Las Lajitas

This chart illustrates the average monthly humidity levels in Las Lajitas, 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 Lajitas is approximately 53%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%75%76%85%88%79%60%45%53%55%75%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Las Lajitas

In Las Lajitas in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Las Lajitas.

Maximum UV Index Levels in Las Lajitas for September

The chart shows the monthly maximum UV Index (UVI) for Las Lajitas 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 Lajitas typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16141311867811131515
Data source: Las Lajitas 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 Lajitas Compares to Other Months

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

This table compares monthly weather conditions in Las Lajitas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)158 mm (6.2 inches)81%extreme
February Weather25°C (76°F)155 mm (6.1 inches)75%extreme
March Weather23°C (74°F)129 mm (5.1 inches)76%extreme
April Weather21°C (70°F)102 mm (4.0 inches)85%extreme
May Weather17°C (63°F)37 mm (1.5 inches)88%very high
June Weather14°C (57°F)18 mm (0.7 inches)79%high
July Weather14°C (57°F)11 mm (0.4 inches)60%high
August Weather17°C (63°F)8 mm (0.3 inches)45%very high
September Weather21°C (69°F)16 mm (0.6 inches)53%extreme
October Weather23°C (74°F)87 mm (3.4 inches)55%extreme
November Weather25°C (77°F)108 mm (4.2 inches)75%extreme
December Weather26°C (79°F)142 mm (5.6 inches)85%extreme

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