June weather forecast
Myrtle Island, FL

June, the first month of the summer in Myrtle Island, is still a tropical month, with an average temperature ranging between max 90.7°F (32.6°C) and min 72.7°F (22.6°C).

Temperature

Myrtle Island's average high-temperature in June is a still hot 90.7°F (32.6°C), indicating a subtle variation from May. Myrtle Island encounters a steady low-temperature average of 72.7°F (22.6°C) throughout the month of June.

Heat index

For most parts of June, the heat index is estimated at a life-threatening hot 113°F (45°C). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In June, the average relative humidity is 76%.

Rainfall

In Myrtle Island, during June, the rain falls for 17.3 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 151.1 rainfall days, and 17.99" (457mm) of precipitation is accumulated.

Daylight

June has the longest days of the year, with an average of 14h and 0min of daylight.
On the first day of June, sunrise is at 6:25 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 8:30 pm EDT.

Sunshine

In June, the average sunshine is 10.2h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. 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 maximum UV index of 7 during June leads to these instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.