May weather forecast
Sumterville, FL

The last month of the spring, May, is a hot month in Sumterville, Florida, with temperature in the range of an average high of 86.2°F (30.1°C) and an average low of 67.6°F (19.8°C).

Temperature

The introduction of May notes a subtle temperature variation to a tropical 86.2°F (30.1°C) from April's 82°F (27.8°C). During May nights, Sumterville records an average temperature of 67.6°F (19.8°C).

Heat index

The heat index for May is computed to be a sweltering 96.8°F (36°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. 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-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in May is 73%.

Rainfall

In Sumterville, Florida, in May, it is raining for 11.7 days, with typically 0.83" (21mm) of accumulated precipitation. In Sumterville, Florida, during the entire year, the rain falls for 130.4 days and collects up to 11.26" (286mm) of precipitation.

Daylight

In Sumterville, the average length of the day in May is 13h and 35min.
On the first day of May in Sumterville, sunrise is at 6:46 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 8:21 pm EDT.

Sunshine

In May, the average sunshine in Sumterville is 10.6h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily high UV index of 7 in May leads to these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.