June weather forecast
Joshua, SC

The first month of the summer, June, is a tropical month in Joshua, South Carolina, with temperature in the range of an average low of 73.4°F (23°C) and an average high of 87.1°F (30.6°C).

Temperature

June's onset witnesses a minor shift in the average high-temperature, moving from a warm 80.8°F (27.1°C) in May to a hot 87.1°F (30.6°C). Joshua records an average low-temperature of 73.4°F (23°C) throughout the month of June.

Heat index

For June, the heat index is computed to be a fiery hot 100.4°F (38°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. 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. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Joshua, South Carolina, the average relative humidity in June is 75%.

Rainfall

In June, in Joshua, the rain falls for 17.3 days. Throughout June, 2.6" (66mm) of precipitation is accumulated. In Joshua, during the entire year, the rain falls for 154.4 days and collects up to 23.43" (595mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

With an average of 14h and 18min of daylight, June has the longest days of the year in Joshua.
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 Joshua, the average sunshine in June is 10.8h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Joshua, South Carolina. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 7 in June interprets into the following advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.