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October Weather in San Luis, Peru

Last updated: August 27, 2025

In October, the average temperature in San Luis, Peru hovers around 9°C (48°F). You can expect a minimum chill of 0°C (32°F) and a pleasant maximum of 18°C (65°F). With 179 mm (7.1 in) of precipitation spread over 27 days, it’s a rather wet month. The air carries an average humidity of 50%, adding to the atmospheric experience.

October Temperature in San Luis

In October in San Luis, the average temperature is 9°C (48°F). Maximum temperatures can reach 18°C (65°F), while minimums can drop as low as 0°C (32°F). This range makes it ideal for travelers looking to enjoy mild weather and outdoor activities.

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 9°C (48°F), with highs reaching up to 18°C (65°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec484948484847464647484949
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 total precipitation amount is 179 mm (7.1 in), which occurs over the span of 27 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 179 mm (7.1 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec2402232711608745364397179222250
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 50%. With an average temperature of 9°C (48°F), this humidity feels like a refreshing chill, making it ideal for invigorating walks and exploration, though travelers should be prepared for occasional dampness that adds a unique charm to the atmosphere.

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 50%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%89%89%86%71%44%34%37%50%73%91%
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 18, which corresponds to an extreme exposure category. This means that the time to burn is just 10 minutes. For more detailed information, 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 18, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec181919181513141417181717
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 Weather9°C (48°F)240 mm (9.4 inches)88%extreme
February Weather9°C (49°F)223 mm (8.8 inches)86%extreme
March Weather9°C (48°F)271 mm (10.7 inches)89%extreme
April Weather9°C (48°F)160 mm (6.3 inches)89%extreme
May Weather9°C (48°F)87 mm (3.4 inches)86%extreme
June Weather8°C (47°F)45 mm (1.8 inches)71%extreme
July Weather8°C (46°F)36 mm (1.4 inches)44%extreme
August Weather8°C (47°F)43 mm (1.7 inches)34%extreme
September Weather8°C (47°F)97 mm (3.8 inches)37%extreme
October Weather9°C (48°F)179 mm (7.1 inches)50%extreme
November Weather9°C (49°F)222 mm (8.7 inches)73%extreme
December Weather9°C (49°F)250 mm (9.9 inches)91%extreme

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