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October Weather in San Antonio, Chile

Last updated: August 22, 2025

In October, the average temperature in San Antonio, Chile hovers around 13°C (55°F), with a minimum dipping to 5°C (41°F) and a maximum reaching 24°C (76°F). Expect about 14 mm (0.6 in) of precipitation spread over 2 days, and enjoy a comfortable average humidity of 61%.

October Temperature in San Antonio

In October in San Antonio, the average temperature is 13°C (55°F). Maximums can reach 24°C (76°F) and minimums can be as low as 5°C (41°F). This pleasant climate makes it an ideal time for travelers to explore the attractions and enjoy outdoor activities.

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 13°C (55°F), with highs reaching up to 24°C (76°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec626260575451505053555960
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 14 mm (0.6 in) over a period of 2 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 14 mm (0.6 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec6339431074738161431
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 61%. With an average temperature of 13°C (55°F), this humidity feels like a crisp, invigorating embrace that can make traveling quite refreshing, but it may also feel a bit chilly, especially during the evenings, so layering your clothing is advisable to stay comfortable while exploring.

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 61%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec41%41%46%52%64%71%75%73%56%61%52%39%
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 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 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 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311853468111314
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 Weather17°C (62°F)6 mm (0.2 inches)41%extreme
February Weather17°C (62°F)3 mm (0.1 inches)41%extreme
March Weather16°C (60°F)3 mm (0.1 inches)46%extreme
April Weather14°C (57°F)9 mm (0.4 inches)52%very high
May Weather12°C (54°F)43 mm (1.7 inches)64%moderate
June Weather11°C (51°F)107 mm (4.2 inches)71%moderate
July Weather10°C (50°F)47 mm (1.9 inches)75%moderate
August Weather10°C (51°F)38 mm (1.5 inches)73%high
September Weather11°C (53°F)16 mm (0.6 inches)56%very high
October Weather13°C (55°F)14 mm (0.6 inches)61%extreme
November Weather15°C (59°F)3 mm (0.1 inches)52%extreme
December Weather16°C (61°F)1 mm (0.0 inches)39%extreme

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