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August Weather in San Antonio, Argentina

Last updated: August 22, 2025

In August, the average temperature in San Antonio, Argentina hovers around 10°C (50°F), with variations that can see lows of -3°C (27°F) and highs reaching up to 30°C (85°F). Expect about 14 mm (0.5 in) of precipitation spread over 3 days, accompanied by a moderate average humidity level of 42%.

August Temperature in San Antonio

In August in San Antonio, the average temperature is 10°C (50°F). Maximums can reach 30°C (85°F) and minimums can be as low as -3°C (27°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm days and chilly nights.

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

The chart illustrates August 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, August typically has an average temperature of 10°C (50°F), with highs reaching up to 30°C (85°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec686563595247465055606466
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.

August Precipitation in San Antonio

In San Antonio in August, the precipitation amount is 14 mm (0.5 in) over the course of 3 days.

August Precipitation Trends in San Antonio

The chart displays monthly precipitation patterns in San Antonio, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In San Antonio, August typically receives around 14 mm (0.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec2352102071819743261451103170230
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in San Antonio

In San Antonio in August, humidity is 42%. With an average temperature of 10°C (50°F), this humidity feels like a refreshing coolness that enhances the crispness of the air, making it perfect for exploring the surroundings without feeling overheated.

August Average Humidity in San Antonio

This chart illustrates the average monthly humidity levels in San Antonio, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in San Antonio is approximately 42%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%66%68%83%82%72%57%42%51%47%58%62%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in San Antonio

In San Antonio in August, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in San Antonio.

Maximum UV Index Levels in San Antonio for August

The chart shows the monthly maximum UV Index (UVI) for San Antonio in August, 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 August, the maximum UV index in San Antonio typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141310756710131515
Data source: San Antonio August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)235 mm (9.3 inches)63%extreme
February Weather19°C (66°F)210 mm (8.3 inches)66%extreme
March Weather17°C (63°F)207 mm (8.1 inches)68%extreme
April Weather15°C (60°F)181 mm (7.1 inches)83%very high
May Weather11°C (53°F)97 mm (3.8 inches)82%high
June Weather8°C (47°F)43 mm (1.7 inches)72%moderate
July Weather8°C (46°F)26 mm (1.0 inches)57%high
August Weather10°C (50°F)14 mm (0.5 inches)42%high
September Weather13°C (56°F)51 mm (2.0 inches)51%very high
October Weather16°C (61°F)103 mm (4.1 inches)47%extreme
November Weather18°C (64°F)170 mm (6.7 inches)58%extreme
December Weather19°C (66°F)230 mm (9.0 inches)61%extreme

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