June weather forecast
Merritt Island, FL

June, the first month of the summer in Merritt Island, is also a moderately hot month, with an average temperature varying between 85.1°F (29.5°C) and 76.6°F (24.8°C).

Temperature

A minor adjustment in Merritt Island's average high-temperature is noted with the start of June, touching a still moderately hot 85.1°F (29.5°C) from May's 81.5°F (27.5°C). Nights in June cool down in Merritt Island, Florida, indicating a minor disparity from daytime highs with an average low-temperature of 76.6°F (24.8°C).

Heat index

Throughout June, the heat index is estimated at a torrid 96.8°F (36°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. 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 'feels like' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The average relative humidity in June is 78%.

Rainfall

In Merritt Island, Florida, in June, it is raining for 20.8 days, with typically 3.7" (94mm) of accumulated precipitation. In Merritt Island, during the entire year, the rain falls for 190.9 days and collects up to 29.37" (746mm) of precipitation.

Daylight

June has the longest days of the year in Merritt Island, with an average of 13h and 54min of daylight.
On the first day of the month, sunrise is at 6:25 am and sunset at 8:15 pm. On the last day of June, in Merritt Island, sunrise is at 6:29 am and sunset at 8:23 pm EDT.

Sunshine

In June, the average sunshine in Merritt Island, Florida, is 10.8h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 7 in June translates into the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. 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. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.