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October Weather in San Antonio, Peru

Last updated: August 27, 2025

In {San Antonio}, {Peru}, the average temperature in {October} hovers around 6°C (43°F). During this month, temperatures can dip as low as -5°C (23°F), while highs may reach up to 17°C (63°F). Expect 153 mm (6.0 in) of precipitation spread over 24 days, with an average humidity level of 67%.

October Temperature in San Antonio

In October in San Antonio, the average temperature is 6°C (43°F). The maximum can reach 17°C (63°F), while the minimum can dip as low as -5°C (23°F). Dress in layers and prepare for varying weather conditions to ensure a comfortable travel experience.

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

The chart illustrates October temperature patterns in San Antonio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Antonio, October typically has an average temperature of 6°C (43°F), with highs reaching up to 17°C (63°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec434343424039404143434444
Data source: Temperature data for San Antonio 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 Antonio

In San Antonio in October, the total precipitation amount is 153 mm (6.0 in), which falls over a span of 24 days.

October Precipitation Trends in San Antonio

The chart displays monthly precipitation patterns in San Antonio, 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 Antonio, October typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec2502972741274613152378153185252
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Antonio

In San Antonio in October humidity is 67%. With an average temperature of 6°C (43°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor exploration somewhat uncomfortable and prompting a need for warm, moisture-wicking clothing while traveling.

October Average Humidity in San Antonio

This chart illustrates the average monthly humidity levels in San Antonio, 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 Antonio is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%90%84%67%53%47%53%67%75%83%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in San Antonio

In San Antonio 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 Antonio.

Maximum UV Index Levels in San Antonio for October

The chart shows the monthly maximum UV Index (UVI) for San Antonio 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 Antonio typically reaches 18, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec242524181412131517182023
Data source: San Antonio 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 Antonio Compares to Other Months

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

This table compares monthly weather conditions in San Antonio, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)250 mm (9.8 inches)89%extreme
February Weather6°C (43°F)297 mm (11.7 inches)90%extreme
March Weather6°C (43°F)274 mm (10.8 inches)90%extreme
April Weather6°C (42°F)126 mm (5.0 inches)90%extreme
May Weather5°C (41°F)46 mm (1.8 inches)84%extreme
June Weather4°C (40°F)13 mm (0.5 inches)67%extreme
July Weather4°C (40°F)15 mm (0.6 inches)53%extreme
August Weather5°C (41°F)23 mm (0.9 inches)47%extreme
September Weather6°C (43°F)78 mm (3.1 inches)53%extreme
October Weather6°C (43°F)153 mm (6.0 inches)67%extreme
November Weather7°C (44°F)185 mm (7.3 inches)75%extreme
December Weather6°C (44°F)252 mm (9.9 inches)82%extreme

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