May weather forecast
Riverview, FL

May, the last month of the spring in Riverview, is a tropical month, with an average temperature varying between 70.7°F (21.5°C) and 86.2°F (30.1°C).

Temperature

Riverview, Florida, observes a minor difference in average high-temperatures between April's 82°F (27.8°C) and May's 86.2°F (30.1°C). Throughout May, Riverview records an average temperature of 70.7°F (21.5°C) at night.

Heat index

The heat index in May is calculated to be a torrid 95°F (35°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The months with the lowest humidity are March and May, with an average relative humidity of 70%.

Rainfall

In Riverview, in May, it is raining for 14.1 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 148.4 rainfall days, and 12.32" (313mm) of precipitation is accumulated.

Daylight

In Riverview, the average length of the day in May is 13h and 32min.
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, sunrise is at 6:33 am and sunset at 8:20 pm EDT.

Sunshine

May has the most sunshine of the year, with an average of 11h of sunshine.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 during May translates into the following directions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.