June weather forecast
Casselberry, FL

The first month of the summer, June, is also a hot month in Casselberry, Florida, with temperature in the range of an average low of 74.1°F (23.4°C) and an average high of 89.6°F (32°C).

Temperature

In June, the average high-temperature registers at a still tropical 89.6°F (32°C), nearly identical to May's 86.2°F (30.1°C). In June, Casselberry's temperature tends to fall to an average low of 74.1°F (23.4°C) during the night.

Heat index

During June, the heat index is computed to be a blisteringly hot 109.4°F (43°C). Keep wary: Heat cramps along with heat exhaustion are expected. Heatstroke is a possible outcome of ongoing activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In June, the average relative humidity is 76%.

Rainfall

In June, the rain falls for 21.1 days. Throughout June, 3.39" (86mm) of precipitation is accumulated. Throughout the year, there are 172.9 rainfall days, and 22.76" (578mm) of precipitation is accumulated.

Daylight

With an average of 13h and 54min of daylight, June has the longest days of the year in Casselberry, Florida.
On the first day of June in Casselberry, sunrise is at 6:27 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 8:27 pm EDT.

Sunshine

The average sunshine in June is 10.5h.

UV index

The months with the highest UV index in Casselberry are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily high UV index of 7 in June leads to these guidelines:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.