July weather forecast
Brownsville, TX

As July arrives in Brownsville, the city experiences its highest temperatures with a typical scale stretching from 79.5°F (26.4°C) to 92.1°F (33.4°C). The average number of daylight hours are steady, but the sunshine hours experience a slight dip. Rainfall remains stable, but the cloud cover drops further, keeping the sky mostly clear. The wind speed reduces but that doesn't affect the relatively high humidity. Despite the heat, the gust speed does not pose any significant challenge.

Temperature

The shift into July in Brownsville records an average high-temperature of a still hot 92.1°F (33.4°C), subtly varied from June's 90.5°F (32.5°C). Throughout July, the nighttime temperature averages to a moderately hot 79.5°F (26.4°C).

Heat index

The heat index for July is estimated at a blazing hot 113°F (45°C). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Brownsville, the average relative humidity in July is 70%.

Rainfall

In Brownsville, Texas, in July, during 7.9 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Brownsville, Texas, during the entire year, the rain falls for 114 days and collects up to 11.22" (285mm) of precipitation.

Daylight

In July, the average length of the day is 13h and 34min.
On the first day of July, sunrise is at 6:42 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 8:16 pm CDT.

Sunshine

July has the most sunshine of the year in Brownsville, with an average of 11.2h of sunshine.

UV index

July is the month with the highest UV index, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 8 in July translates into the following instructions:
Ensure precautions are always in place. The risk to skin and eyes is high without them. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.