June weather forecast
Grand Island, FL

The first month of the summer, June, is still a hot month in Grand Island, Florida, with an average temperature ranging between min 73.6°F (23.1°C) and max 89.2°F (31.8°C).

Temperature

The average high-temperature during June is a still hot 89.2°F (31.8°C), almost matching the conditions of the preceding month. June in Grand Island, Florida, witnesses an average low-temperature hovering around a moderately hot 73.6°F (23.1°C).

Heat index

In June, the average heat index is computed to be a scorching 107.6°F (42°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In June, the average relative humidity is 77%.

Rainfall

In Grand Island, in June, during 23.2 rainfall days, 5.35" (136mm) of precipitation is typically accumulated. Throughout the year, there are 193.1 rainfall days, and 35.71" (907mm) of precipitation is accumulated.

Daylight

June has the longest days of the year in Grand Island, with an average of 14h and 0min of daylight.
On the first day of June in Grand Island, Florida, sunrise is at 6:28 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 8:29 pm EDT.

Sunshine

The average sunshine in June in Grand Island is 10.5h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Grand Island. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during June translates into the following guidance:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.