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May Weather in Brownsville, United States

Last updated: June 24, 2025

In Brownsville, United States, the average temperature in May hovers around 22°C (71°F), with a minimum of 4°C (40°F) and a maximum reaching up to 33°C (92°F). Expect about 103 mm (4.1 in) of precipitation spread over 12 days, contributing to an average humidity level of 83%. Prepare for a mix of weather as you explore this charming destination!

May Temperature in Brownsville

In May in Brownsville, the average temperature is 22°C (71°F). Maximums can reach 33°C (92°F), while minimums can drop as low as 4°C (40°F). This makes it a great time for travelers to enjoy a variety of outdoor activities, but it's wise to pack for both warmth and cooler evenings.

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

The chart illustrates May 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, May typically has an average temperature of 22°C (71°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec414554607178817975645046
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.

May Precipitation in Brownsville

In Brownsville in May, the total precipitation amount is 103 mm (4.1 in), occurring over the course of 12 days.

May Precipitation Trends in Brownsville

The chart displays monthly precipitation patterns in Brownsville, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Brownsville, May typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec9917116614310310312311611311179144
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Brownsville

In Brownsville in May humidity is 83%. With an average temperature of 22°C (71°F), this humidity feels like a warm blanket wrapping around you, making travel a bit sticky but still enjoyable, as long as you stay hydrated and take breaks in the shade.

May Average Humidity in Brownsville

This chart illustrates the average monthly humidity levels in Brownsville, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Brownsville is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%81%83%83%80%74%70%73%85%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Brownsville

In Brownsville in May, 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 May

The chart shows the monthly maximum UV Index (UVI) for Brownsville in May, 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 May, the maximum UV index in Brownsville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109753
Data source: Brownsville May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)99 mm (3.9 inches)86%moderate
February Weather7°C (46°F)171 mm (6.7 inches)85%high
March Weather12°C (55°F)166 mm (6.5 inches)84%high
April Weather16°C (61°F)143 mm (5.6 inches)81%very high
May Weather22°C (71°F)103 mm (4.1 inches)83%very high
June Weather26°C (78°F)103 mm (4.1 inches)83%extreme
July Weather27°C (81°F)123 mm (4.9 inches)80%extreme
August Weather26°C (79°F)116 mm (4.6 inches)73%very high
September Weather24°C (75°F)113 mm (4.5 inches)70%very high
October Weather18°C (64°F)111 mm (4.4 inches)73%high
November Weather10°C (50°F)79 mm (3.1 inches)85%moderate
December Weather8°C (46°F)144 mm (5.7 inches)88%moderate

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