July weather forecast
Port Saint John, FL

July, like June, is a hot summer month in Port Saint John, Florida, with temperature in the range of an average high of 88.3°F (31.3°C) and an average low of 76.8°F (24.9°C).

Temperature

Upon the onset of July, Port Saint John witnesses an average high-temperature of a still hot 88.3°F (31.3°C), showing a close resemblance to the prior month. In the month of July, the temperature generally rests at an average low of 76.8°F (24.9°C).

Heat index

Throughout July, the heat index is estimated at an extremely hot 105.8°F (41°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in July is 78%.

Rainfall

In Port Saint John, Florida, during July, the rain falls for 25.8 days and regularly aggregates up to 5.59" (142mm) of precipitation. In Port Saint John, during the entire year, the rain falls for 202 days and collects up to 40.2" (1021mm) of precipitation.

Daylight

In July, the average length of the day is 13h and 45min.
On the first day of the month, sunrise is at 6:29 am and sunset at 8:24 pm. On the last day of July, sunrise is at 6:44 am and sunset at 8:14 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 11h of sunshine.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 7 in July translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.