June weather forecast
Mount Pleasant, SC

Come June, Mount Pleasant is in the full swing of summer with predictable warm weather conditions. A distinctive feature of this month’s weather is the highest number of rainy days being 20.8. While high temperatures persist throughout the month, the city enjoys more sunlight than any other month, observing 14.3 daylight hours. The high rainfall frequency balances the increased heat, maintaining comfortable conditions. Cooling off in pools or visiting the beaches becomes a regular activity as locals aim to mitigate the impact of rising temperatures.

Temperature

June's arrival in Mount Pleasant brings a slight change in high-temperatures, adjusting from 79°F (26.1°C) in May to a still warm 84.9°F (29.4°C). During the month of June, the nighttime temperature falls to an average of 74.8°F (23.8°C).

Heat index

The heat index in June is calculated to be a very hot 95°F (35°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in June in Mount Pleasant is 76%.

Rainfall

In Mount Pleasant, in June, it is raining for 20.8 days, with typically 4.61" (117mm) of accumulated precipitation. In Mount Pleasant, during the entire year, the rain falls for 182.9 days and collects up to 44.69" (1135mm) of precipitation.

Snowfall

March through November are months without snowfall in Mount Pleasant.

Daylight

The month with the longest days is June, with an average of 14h and 18min of daylight.
On the first day of June, sunrise is at 6:11 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:31 pm EDT.

Sunshine

June and July, with an average of 10.9h of sunshine, are months with the most sunshine.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Mount Pleasant. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 in June interprets into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.