July weather forecast
Captiva, FL

July stands as the warmest month in Captiva. The considerable temperature shift to 87.4°F (30.8°C) pinpoints the month's peak warmth. Additionally, humidity hits a drop to 73%, causing relatively dry conditions. Meanwhile, pressure measurements reveal a slight increase. Undeterred by the blistering heat, Captiva continues to emanate an irresistible charm.

Temperature

With the arrival of July, Captiva's average high-temperature registers at a still hot 87.4°F (30.8°C), indicating a subtle variation from the previous month. Captiva's temperature during July nights registers a minor decrease to an average low of 80.4°F (26.9°C).

Heat index

The heat index value during July is computed to be a sweltering 100.4°F (38°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In July, the average relative humidity is 73%.

Rainfall

In Captiva, in July, during 17.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 122 rainfall days, and 8.98" (228mm) of precipitation is accumulated.

Ocean temperature

In Captiva, in July, the average water temperature is 84.2°F (29°C).
Note: Between 77°F (25°C) and 84.2°F (29°C), water temperature is typically considered very warm and pleasurable by everyone. Water activities at these temperatures are enjoyable for extended periods without discomfort.

Daylight

In Captiva, the average length of the day in July is 13h and 37min.
On the first day of July, sunrise is at 6:39 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 8:16 pm EDT.

Sunshine

The average sunshine in July is 11h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 7 during July translates into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat. Warning! Sand and water reflections boost the intensity of UV exposure.