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

July's onset brings an average high-temperature of a still tropical 92.1°F (33.4°C), showing a minute difference from June's 90.5°F (32.5°C). Throughout July, the average low-temperature dips to a moderately hot 79.5°F (26.4°C).

Heat index

The heat index in July is evaluated at a life-threatening hot 113°F (45°C). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In Brownsville, during July, the rain falls for 7.9 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Brownsville, during the entire year, the rain falls for 114 days and collects up to 11.22" (285mm) of precipitation.

Daylight

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

Sunshine

The month with the most sunshine is July, with an average of 11.2h of sunshine.

UV index

The month with the highest UV index is July, with an average maximum UV index of 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 8 in July translates into this advice:
Be sure to take precautions. Without protection, skin might suffer damage quickly. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.