June weather forecast
Spartanburg, SC

Spartanburg's weather in June transitions into a purely summer climate. The average high temperature soars to 88.3°F (31.3°C) as the city embraces the summer heat. Sunshine hours peak in June, averaging 10.7 hours per day. The city experiences a reduction in cloudiness compared to previous months. Surprisingly, June still holds high humidity levels, making this month a typical summer month in Spartanburg, South Carolina.

Temperature

June introduces a marginal temperature uplift in Spartanburg, with average high-temperatures adjusting from May's moderately hot 79.7°F (26.5°C) to a hot 88.3°F (31.3°C). During the nights in June, Spartanburg records a pronounced shift from the daytime warmth, with a consistent average temperature of 66.2°F (19°C).

Heat index

The average heat index in June is appraised at a sweltering 100.4°F (38°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Spartanburg, South Carolina, the average relative humidity in June is 69%.

Rainfall

In Spartanburg, during June, the rain falls for 13.9 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, in Spartanburg, there are 145.5 rainfall days, and 28.98" (736mm) of precipitation is accumulated.

Snowfall

In Spartanburg, snow does not fall in April through November.

Daylight

June has the longest days of the year, with an average of 14h and 30min of daylight.
On the first day of June in Spartanburg, sunrise is at 6:14 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:45 pm EDT.

Sunshine

In June, the average sunshine in Spartanburg, South Carolina, is 10.7h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 6 during June translates into the following directions:
Ward off overexposure. Defence against solar harm is crucial. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.