June weather forecast
Saint Marks, FL

The first month of the summer, June, is also a moderately hot month in Saint Marks, Florida, with an average temperature ranging between max 84.9°F (29.4°C) and min 77.7°F (25.4°C).

Temperature

The onset of June brings a minor temperature shift, with the average high-temperature moving from a moderately hot 79.5°F (26.4°C) in May to a still warm 84.9°F (29.4°C). The nights of June are characterized by an average low-temperature of 77.7°F (25.4°C), subtly descending from daytime highs.

Heat index

Throughout June, the heat index is appraised at a torrid 95°F (35°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Saint Marks, the average relative humidity in June is 76%.

Rainfall

In Saint Marks, in June, during 21.8 rainfall days, 6.1" (155mm) of precipitation is typically accumulated. In Saint Marks, during the entire year, the rain falls for 173 days and collects up to 43.74" (1111mm) of precipitation.

Daylight

June has the longest days of the year, with an average of 14h and 6min of daylight.
On the first day of June, sunrise is at 6:35 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 8:42 pm EDT.

Sunshine

In June, the average sunshine is 10.9h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 7 in June transforms into this advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Stay sun-safe with clothing that is both closely woven and worn loosely.