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October Weather in San Antonio, Peru

Last updated: August 27, 2025

In October, the average temperature in San Antonio, Peru is a pleasant 18°C (65°F). Expect a comfortable range, with minimums of 12°C (53°F) and maximums reaching 27°C (81°F). Precipitation is minimal, with just 1 mm (0.0 in) over 0 days, while the average humidity sits at a moderate 75%. Enjoy the mild climate!

October Temperature in San Antonio

In October in San Antonio, the average temperature is 18°C (65°F), with maximums reaching 27°C (81°F) and minimums dropping to as low as 12°C (53°F). This mild climate makes it an ideal time for outdoor activities and exploration.

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 18°C (65°F), with highs reaching up to 27°C (81°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec646464646463636464656464
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 precipitation amount is 1 mm (0.0 in) during a span of 0 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 1 mm (0.0 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec8389578001001413
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 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.

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 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%91%88%76%61%57%59%75%84%84%
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 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to 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 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16161514119101214161716
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 Weather18°C (64°F)83 mm (3.3 inches)89%extreme
February Weather18°C (64°F)89 mm (3.5 inches)90%extreme
March Weather18°C (64°F)57 mm (2.3 inches)90%extreme
April Weather18°C (65°F)8 mm (0.3 inches)91%extreme
May Weather18°C (65°F)0 mm (0.0 inches)88%extreme
June Weather17°C (63°F)0 mm (0.0 inches)76%very high
July Weather17°C (63°F)1 mm (0.0 inches)61%very high
August Weather18°C (64°F)0 mm (0.0 inches)57%extreme
September Weather18°C (65°F)0 mm (0.0 inches)58%extreme
October Weather18°C (65°F)1 mm (0.0 inches)75%extreme
November Weather18°C (64°F)4 mm (0.1 inches)83%extreme
December Weather18°C (65°F)13 mm (0.5 inches)84%extreme

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