June weather forecast
Simpsonville, SC

June in Simpsonville, South Carolina marks the official start of summer with the highest daylight hours of the whole year, around 14.5. Compared to May, the temperature further increases, prompting people to beat the heat at swimming pools and water parks. Despite the ascending temperatures, June is also characterized by its moderate humidity levels, preventing the weather from becoming too oppressive. This month is all about enjoying the longest days of the year under clear blue skies. Outdoor activities and water sports are at their peak in Simpsonville during June.

Temperature

The start of June in Simpsonville brings a subtle shift in the average high-temperature, edging up from May's moderately hot 79.3°F (26.3°C) to a hot 87.6°F (30.9°C). A steady average of 65.8°F (18.8°C) throughout June in Simpsonville, South Carolina, underscores a considerable divergence from the daytime high.

Heat index

June's heat index is evaluated at a torrid 100.4°F (38°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In June, the average relative humidity in Simpsonville is 71%.

Rainfall

In Simpsonville, South Carolina, in June, during 15.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, in Simpsonville, there are 163.9 rainfall days, and 35.51" (902mm) of precipitation is accumulated.

Snowfall

In Simpsonville, snow does not fall in April through October.

Daylight

June has the longest days of the year in Simpsonville, South Carolina, with an average of 14h and 24min of daylight.
On the first day of June in Simpsonville, South Carolina, sunrise is at 6:16 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:46 pm EDT.

Sunshine

In June, the average sunshine is 10.9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Simpsonville. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In June, the average maximum UV index of 6 translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.