May weather forecast
Dona Vista, FL

The last month of the spring, May, is a tropical month in Dona Vista, Florida, with an average temperature varying between 86.2°F (30.1°C) and 68°F (20°C).

Temperature

With the onset of May, Dona Vista's average high-temperature clocks in at a hot 86.2°F (30.1°C), showing a minor fluctuation from the previous month. The low-temperature averages to an agreeable 68°F (20°C) during the nights of May.

Heat index

Throughout May, the heat index is calculated to be a sweltering 96.8°F (36°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In May, the average relative humidity is 73%.

Rainfall

In May, the rain falls for 16.7 days. Throughout May, 3.23" (82mm) of precipitation is accumulated. Throughout the year, there are 193.1 rainfall days, and 35.71" (907mm) of precipitation is accumulated.

Daylight

In May, the average length of the day in Dona Vista, Florida, is 13h and 36min.
On the first day of the month, sunrise is at 6:44 am and sunset at 8:02 pm. On the last day of May, sunrise is at 6:28 am and sunset at 8:20 pm EDT.

Sunshine

The months with the most sunshine are May and July, with an average of 10.7h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the maximum UV index of 7 translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.