July weather forecast
Grand Island, FL

July, the same as June, in Grand Island, Florida, is another tropical summer month, with an average temperature ranging between max 90.7°F (32.6°C) and min 74.8°F (23.8°C).

Temperature

Grand Island signifies an average high-temperature of a still hot 90.7°F (32.6°C) in July, closely mirroring the 89.2°F (31.8°C) of June. The average low-temperature of 74.8°F (23.8°C) is witnessed during July.

Heat index

July's average heat index is computed to be a life-threatening hot 114.8°F (46°C). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
Observations indicate that the heat index values are for shady locations with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

July through September, with an average relative humidity of 78%, are the most humid months in Grand Island, Florida.

Rainfall

July is the month with the most rainfall in Grand Island. Rain falls for 26.9 days and accumulates 5.91" (150mm) of precipitation.

Daylight

The average length of the day in July is 13h and 47min.
On the first day of July in Grand Island, sunrise is at 6:32 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 8:18 pm EDT.

Sunshine

May and July, with an average of 10.7h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index in Grand Island are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 7 during July translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.