June weather forecast
Charleston, TN

The first month of the summer, June, is also a moderately hot month in Charleston, Tennessee, with an average temperature fluctuating between 85.5°F (29.7°C) and 63.3°F (17.4°C).

Temperature

June brings a slight rise in Charleston's average high-temperature, moving from a warm 77.9°F (25.5°C) in May to a still moderately hot 85.5°F (29.7°C). A pronounced dip becomes evident during the nights in June as Charleston logs a consistent average temperature of 63.3°F (17.4°C).

Heat index

In June, the heat index is evaluated at a sweltering 95°F (35°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The months with the lowest humidity in Charleston are June through November, with an average relative humidity of 75%.

Rainfall

In June, in Charleston, Tennessee, the rain falls for 15 days. Throughout June, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 148 rainfall days, and 23.9" (607mm) of precipitation is accumulated.

Snowfall

In Charleston, Tennessee, snow does not fall in April through October.

Daylight

The month with the longest days in Charleston is June, with an average of 14h and 30min of daylight.
On the first day of the month, sunrise is at 6:25 am and sunset at 8:48 pm. On the last day of June, in Charleston, sunrise is at 6:27 am and sunset at 8:57 pm EDT.

Sunshine

With an average of 10.6h of sunshine, June has the most sunshine of the year in Charleston.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 6 in June translates into the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.