July weather forecast
Port Saint Lucie, FL

In July, the weather in Port Saint Lucie sustains its peak summer characteristics, elevated temperatures being a prominent feature. The maximum sea temperature scales to a warm 83.9°F (28.8°C), which complements well with the pronounced increase in daily sunshine hours. An increase in relative humidity can be observed, which is typical of this time of the year. Interestingly, the month records the year's highest wind gust speed of 9.9mph (15.9km/h) despite the generally serene weather pattern. August, maintaining the trend, features very similar weather factors, slightly warmer in terms of temperature.

Temperature

The introduction of July sees an average high-temperature of a still tropical 87.4°F (30.8°C), hardly deviating from June. In Port Saint Lucie, an average low-temperature of 78.1°F (25.6°C) is recorded during July nights.

Heat index

The heat index for July is evaluated at a blistering 104°F (40°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

June through September, with an average relative humidity of 78%, are the most humid months in Port Saint Lucie.

Rainfall

In July, in Port Saint Lucie, Florida, the rain falls for 22.5 days. Throughout July, 2.52" (64mm) of precipitation is accumulated. In Port Saint Lucie, during the entire year, the rain falls for 181.5 days and collects up to 18.11" (460mm) of precipitation.

Ocean temperature

In Port Saint Lucie, Florida, in July, the average water temperature is 83.8°F (28.8°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The average length of the day in July is 13h and 40min.
On the first day of the month, sunrise is at 6:30 am and sunset at 8:20 pm. On the last day of July, in Port Saint Lucie, Florida, sunrise is at 6:45 am and sunset at 8:10 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.9h of sunshine.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Port Saint Lucie. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 7 in July translates into the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take note! Sand and water reflections strengthen the Sun's UV exposure.