June weather forecast
Port Royal, SC

June marks the onset of summer in Port Royal, with temperatures and daylight hours reaching their annual maximum. Temperature-wise, June experiences an average low of 73.9°F (23.3°C) and a high of 86.9°F (30.5°C), perfect for beach trips and afternoon barbecues. Daylight extends to 14.3 hours, the longest in the year, allowing for long, leisurely days out. June's welcoming weather invites an influx of tourists to Port Royal, making it a bustling hub of activities and pleasure trips.

Temperature

As Port Royal enters June, the average high-temperature marginally increases from the a moderately hot 81.1°F (27.3°C) of May to a hot 86.9°F (30.5°C). Port Royal's nights in June experience an average temperature drop to a moderately hot 73.9°F (23.3°C).

Heat index

June's heat index is appraised at a sweltering 100.4°F (38°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. 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 important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In Port Royal, the average relative humidity in June is 75%.

Rainfall

In Port Royal, in June, it is raining for 18.4 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 154.7 rainfall days, and 23.11" (587mm) of precipitation is accumulated.

Snowfall

In Port Royal, snow does not fall in March through November.

Daylight

The month with the longest days is June, with an average of 14h and 12min of daylight.
On the first day of June, sunrise is at 6:16 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:33 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 in Port Royal. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 7 in June, converts into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.