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October Weather in San Luis, Argentina

Last updated: August 22, 2025

In San Luis, Argentina, the average temperature in October hovers around 18°C (64°F), but it can vary significantly. You might experience a chilly minimum of 0°C (32°F) to a sweltering maximum of 38°C (101°F). During this month, expect about 32 mm (1.2 in) of precipitation spread over 7 days, with an average humidity of 43%. Stay prepared for the diverse weather!

October Temperature in San Luis

In October in San Luis, the average temperature is 18°C (64°F). Maximum temperatures can reach 38°C (101°F), while minimums can drop as low as 0°C (32°F). Be prepared for a wide range of temperatures and pack accordingly for your trip!

October Weather in San Luis: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in San Luis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Luis, October typically has an average temperature of 18°C (64°F), with highs reaching up to 38°C (101°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec757268635548485359647074
Data source: Temperature data for San Luis 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.

October Precipitation in San Luis

In San Luis in October, the precipitation amount is 32 mm (1.2 in) over the course of 7 days.

October Precipitation Trends in San Luis

The chart displays monthly precipitation patterns in San Luis, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In San Luis, October typically receives around 32 mm (1.2 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec9279607232139421327163
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Luis

In San Luis in October, humidity is 43%. With an average temperature of 18°C (64°F), this humidity feels like a comfortable and refreshing breeze, making it ideal for leisurely exploration and outdoor adventures.

October Average Humidity in San Luis

This chart illustrates the average monthly humidity levels in San Luis, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in San Luis is approximately 43%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec40%48%53%63%67%61%55%48%45%43%45%40%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in San Luis

In San Luis in October, 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 San Luis.

Maximum UV Index Levels in San Luis for October

The chart shows the monthly maximum UV Index (UVI) for San Luis in October, 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 October, the maximum UV index in San Luis typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151311854468111415
Data source: San Luis October 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 October Weather in San Luis Compares to Other Months

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

This table compares monthly weather conditions in San Luis, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)92 mm (3.6 inches)40%extreme
February Weather22°C (72°F)79 mm (3.1 inches)48%extreme
March Weather20°C (69°F)60 mm (2.4 inches)53%extreme
April Weather17°C (63°F)72 mm (2.8 inches)63%very high
May Weather13°C (55°F)32 mm (1.2 inches)67%moderate
June Weather9°C (49°F)13 mm (0.5 inches)61%moderate
July Weather9°C (48°F)9 mm (0.4 inches)55%moderate
August Weather12°C (54°F)4 mm (0.2 inches)48%high
September Weather15°C (59°F)21 mm (0.8 inches)45%very high
October Weather18°C (64°F)32 mm (1.2 inches)43%extreme
November Weather21°C (70°F)71 mm (2.8 inches)45%extreme
December Weather23°C (74°F)63 mm (2.5 inches)40%extreme

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