July weather forecast
Siesta Key, FL

July, the same as June, in Siesta Key, Florida, is another tropical summer month, with an average temperature ranging between min 78.8°F (26°C) and max 88°F (31.1°C).

Temperature

July's onset sees an average high-temperature of a still tropical 88°F (31.1°C), exhibiting a slight fluctuation from the previous month. An average nighttime temperature of 78.8°F (26°C) is recorded in Siesta Key during July.

Heat index

The heat index value for July is evaluated at a torrid 102.2°F (39°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The average relative humidity in July in Siesta Key is 74%.

Rainfall

In July, in Siesta Key, the rain falls for 26.2 days. Throughout July, 5.94" (151mm) of precipitation is accumulated. In Siesta Key, during the entire year, the rain falls for 183.1 days and collects up to 34.92" (887mm) of precipitation.

Ocean temperature

In Siesta Key, in July, the average water temperature is 85.5°F (29.7°C).
Note: Surface water temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as ideal and highly pleasant for extended enjoyment in all water activities.

Daylight

In Siesta Key, the average length of the day in July is 13h and 40min.
On the first day of July, sunrise is at 6:39 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 8:19 pm EDT.

Sunshine

In Siesta Key, Florida, the average sunshine in July is 10.9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Siesta Key. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 7 in July suggests the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Alert! The Sun's UV rays are heightened by the reflection of sand and water.