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August Weather in Brownsville, United States

Last updated: June 24, 2025

In Brownsville, United States, the average temperature in August hovers around 25°C (78°F), providing a warm and inviting atmosphere. However, temperatures can fluctuate, with a minimum of 14°C (57°F) and a soaring maximum reaching 38°C (101°F). Expect some rain, as precipitation amounts to 118 mm (4.6 in) over approximately 14 days. With an average humidity of 74%, it’s a month where the air feels pleasantly warm, but can also be quite steamy!

August Temperature in Brownsville

In August in Brownsville, the average temperature is 25°C (78°F). Maximums can reach 38°C (101°F) and minimums can be as low as 14°C (57°F). This makes it an ideal time for travelers looking to enjoy warm weather while still having the option for cooler evenings.

August Weather in Brownsville: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Brownsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brownsville, August typically has an average temperature of 25°C (78°F), with highs reaching up to 38°C (101°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec384250576976807773624643
Data source: Temperature data for Brownsville 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 Brownsville

In Brownsville in August, the precipitation amount is 118 mm (4.6 in) over a span of 14 days.

August Precipitation Trends in Brownsville

The chart displays monthly precipitation patterns in Brownsville, 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 Brownsville, August typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec9917813615011914412011812912091131
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Brownsville

In Brownsville in August humidity is 74%. With an average temperature of 25°C (78°F), this humidity feels like you're enveloped in a warm, thick blanket, making outdoor activities feel more strenuous and necessitating frequent breaks and hydration for comfortable travel.

August Average Humidity in Brownsville

This chart illustrates the average monthly humidity levels in Brownsville, 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 Brownsville is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Brownsville

In Brownsville in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Brownsville.

Maximum UV Index Levels in Brownsville for August

The chart shows the monthly maximum UV Index (UVI) for Brownsville 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 Brownsville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Brownsville 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 Brownsville Compares to Other Months

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

This table compares monthly weather conditions in Brownsville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)99 mm (3.9 inches)87%moderate
February Weather6°C (43°F)177 mm (7.0 inches)86%high
March Weather10°C (50°F)136 mm (5.4 inches)86%high
April Weather14°C (58°F)150 mm (5.9 inches)82%very high
May Weather20°C (69°F)119 mm (4.7 inches)82%very high
June Weather24°C (76°F)144 mm (5.7 inches)83%extreme
July Weather27°C (80°F)120 mm (4.7 inches)80%extreme
August Weather25°C (78°F)118 mm (4.6 inches)74%very high
September Weather23°C (73°F)129 mm (5.1 inches)71%very high
October Weather16°C (62°F)120 mm (4.7 inches)78%high
November Weather8°C (47°F)91 mm (3.6 inches)88%moderate
December Weather6°C (43°F)131 mm (5.1 inches)88%moderate

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