June weather forecast
Hanahan, SC

June signifies the advent of summer in Hanahan with high temperatures and an increase in rainfall and humidity. The month notably records a substantial increase in rainfall to 3.94" (100mm), indicating quite a wet start to the summer. Compared to May, June is characterized by higher temperatures and more rainfall, which might interfere with outdoor activities. As July arrives, weather conditions are expected to intensify, with soaring temperatures and even higher rainfall. Despite this, the pleasant warmth and the long daylight hours of June make it a favored month for vacationers.

Temperature

The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from a warm 81.3°F (27.4°C) in May to a hot 87.8°F (31°C). June brings Hanahan a consistent average low-temperature of 73°F (22.8°C).

Heat index

The average heat index in June is appraised at a torrid 102.2°F (39°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. 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 'real feel' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Hanahan, the average relative humidity in June is 74%.

Rainfall

In June, the rain falls for 20.1 days. Throughout June, 3.94" (100mm) of precipitation is accumulated. In Hanahan, during the entire year, the rain falls for 172.6 days and collects up to 39.13" (994mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

June has the longest days of the year, with an average of 14h and 18min of daylight.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:23 pm. On the last day of June, sunrise is at 6:15 am and sunset at 8:32 pm EDT.

Sunshine

In Hanahan, the average sunshine in June is 10.7h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 7 in June, converts into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.