June weather forecast
Charleston International Airport, SC

June ushers in the advent of summer at Charleston, bringing with it warm temperatures and relatively high humidity. The daily temperatures are expected to fluctuate significantly, hovering between highs of 82°F (27.8°C) and cooler lows that dip to 59°F (15°C) in the late hours. June also experiences the longest daylight hours, with the sun beaming around midday. The increased UV index that accompanies the sunshine is a factor to consider while planning outdoor activities. Despite June being a rainy month, the rainfall does not undermine the overall sunny ambiance and allure of summer.

Temperature

June in Charleston International Airport showcases a minor temperature ascent, adjusting from May's 75.2°F (24°C) to a still moderately hot 82.4°F (28°C). A considerable shift from the daytime highs is observed during June nights, with an average low of 59°F (15°C).

Rainfall

In Charleston International Airport, in June, during 11 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Charleston International Airport, during the entire year, the rain falls for 151 days and collects up to 41.93" (1065mm) of precipitation.

Daylight

June has the longest days of the year in Charleston International Airport, 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, in Charleston International Airport, sunrise is at 6:15 am and sunset at 8:32 pm EDT.

Sunshine

The months with the most sunshine are May through August, with an average of 8h of sunshine.

UV index

The months with the highest UV index in Charleston International Airport are June through August, with an average maximum UV index of 9. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 9 during June translates into the following recommendations:
It is crucial to take precautions; skin and eyes can get damaged if left unprotected. 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. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Always apply a sunscreen with at least 30 SPF to protect yourself. Sunscreen can reduce the harmful effects of the Sun's radiation on your immune system.