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October Weather in San Luis, United States

Last updated: June 24, 2025

In San Luis, United States, the average temperature in October is a comfortable 25°C (78°F). However, be prepared for variations, as the temperature can dip to a chilly 8°C (46°F) or soar to a scorching 43°C (109°F). Expect a light precipitation of about 8 mm (0.3 in) over 1 day, and enjoy the average humidity of 61% that adds to the region's charm.

October Temperature in San Luis

In October in San Luis, the average temperature is 25°C (78°F). Maximums can reach 43°C (109°F), and minimums can be as low as 8°C (46°F). Be prepared for a wide range of temperatures, making it essential to pack both lightweight clothing for the heat and warmer layers for cooler evenings.

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 25°C (78°F), with highs reaching up to 43°C (109°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec596167768190959689776858
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 8 mm (0.3 in) over the course of 1 day.

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 8 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec915193106620889
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 61%. With an average temperature of 25°C (78°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities slightly sticky but still enjoyable, especially if you stay hydrated and take breaks in the shade.

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 61%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%76%65%50%33%28%28%33%50%61%70%78%
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 is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101112121110854
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 Weather15°C (59°F)9 mm (0.4 inches)73%moderate
February Weather16°C (61°F)15 mm (0.6 inches)76%high
March Weather20°C (68°F)19 mm (0.7 inches)65%very high
April Weather24°C (76°F)3 mm (0.1 inches)50%very high
May Weather27°C (81°F)1 mm (0.0 inches)33%extreme
June Weather32°C (90°F)0 mm (0.0 inches)28%extreme
July Weather35°C (96°F)6 mm (0.2 inches)28%extreme
August Weather35°C (96°F)6 mm (0.2 inches)33%extreme
September Weather32°C (89°F)20 mm (0.8 inches)50%very high
October Weather25°C (78°F)8 mm (0.3 inches)61%very high
November Weather20°C (68°F)8 mm (0.3 inches)70%moderate
December Weather14°C (58°F)9 mm (0.4 inches)78%moderate

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