May weather forecast
Seffner, FL

The last month of the spring, May, is a hot month in Seffner, Florida, with an average temperature fluctuating between 70.2°F (21.2°C) and 86.5°F (30.3°C).

Temperature

With the arrival of May, Seffner's average high-temperature registers at a hot 86.5°F (30.3°C), indicating a subtle variation from the previous month. Throughout May, Seffner's nights cool down to an average of 70.2°F (21.2°C).

Heat index

May's heat index is estimated at a sweltering 96.8°F (36°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to 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.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

March and May, with an average relative humidity of 70%, are the least humid months in Seffner.

Rainfall

In Seffner, Florida, in May, during 15.2 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, in Seffner, Florida, there are 160.9 rainfall days, and 16.77" (426mm) of precipitation is accumulated.

Daylight

In May, the average length of the day in Seffner is 13h and 33min.
On the first day of the month, sunrise is at 6:48 am and sunset at 8:03 pm. On the last day of May, in Seffner, sunrise is at 6:32 am and sunset at 8:20 pm EDT.

Sunshine

May has the most sunshine of the year in Seffner, with an average of 10.9h of sunshine.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Seffner. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 7 in May interprets into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.