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September Weather in Santa Lucia, Argentina

Last updated: August 22, 2025

In September, the average temperature in Santa Lucia, Argentina is a mild 16°C (61°F). However, be prepared for a range of temperatures, with minimums dropping to 0°C (32°F) and maximums soaring up to 37°C (100°F). Rainfall is likely, with 12 mm (0.5 in) of precipitation expected over 2 days, while the average humidity sits at a moderate 45%.

September Temperature in Santa Lucia

In September in Santa Lucia, the average temperature is 16°C (61°F). The maximum can reach 37°C (100°F), while the minimum can drop as low as 0°C (32°F). Be sure to pack for a range of weather when traveling during this time!

September Weather in Santa Lucia: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santa Lucia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Lucia, September typically has an average temperature of 16°C (61°F), with highs reaching up to 37°C (100°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec807772655649485460667377
Data source: Temperature data for Santa Lucia 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 Santa Lucia

In Santa Lucia in September, the precipitation amount is 12 mm (0.5 in) over the course of 2 days.

September Precipitation Trends in Santa Lucia

The chart displays monthly precipitation patterns in Santa Lucia, 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 Santa Lucia, September typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec191717151168312131418
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santa Lucia

In Santa Lucia in September, humidity is 45%. With an average temperature of 16°C (61°F), this humidity feels like a refreshing breeze, making it comfortable for traveling as it adds a pleasant and mild touch to your outdoor adventures.

September Average Humidity in Santa Lucia

This chart illustrates the average monthly humidity levels in Santa Lucia, 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 Santa Lucia is approximately 45%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec44%49%56%67%66%58%59%52%45%43%41%37%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santa Lucia

In Santa Lucia 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 Santa Lucia.

Maximum UV Index Levels in Santa Lucia for September

The chart shows the monthly maximum UV Index (UVI) for Santa Lucia 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 Santa Lucia typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151412964579121415
Data source: Santa Lucia 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 Santa Lucia Compares to Other Months

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

This table compares monthly weather conditions in Santa Lucia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)19 mm (0.8 inches)44%extreme
February Weather25°C (77°F)17 mm (0.7 inches)48%extreme
March Weather22°C (72°F)17 mm (0.7 inches)56%extreme
April Weather18°C (65°F)15 mm (0.6 inches)67%very high
May Weather14°C (57°F)11 mm (0.4 inches)66%high
June Weather9°C (49°F)6 mm (0.2 inches)58%moderate
July Weather9°C (48°F)8 mm (0.3 inches)58%moderate
August Weather12°C (54°F)3 mm (0.1 inches)52%high
September Weather16°C (61°F)12 mm (0.5 inches)45%very high
October Weather19°C (67°F)13 mm (0.5 inches)43%extreme
November Weather23°C (73°F)14 mm (0.5 inches)41%extreme
December Weather25°C (77°F)18 mm (0.7 inches)37%extreme

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