May weather forecast
Altoona, FL

May, the last month of the spring in Altoona, is a hot month, with an average temperature varying between 68°F (20°C) and 86.2°F (30.1°C).

Temperature

Altoona's May average high-temperature settles at a tropical 86.2°F (30.1°C), showing a near match with the preceding month. During May, Altoona sees a mean low-temperature of 68°F (20°C).

Heat index

Throughout May, the heat index is computed to be a sweltering 96.8°F (36°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In May, the average relative humidity in Altoona is 73%.

Rainfall

In May, in Altoona, the rain falls for 16.7 days. Throughout May, 3.23" (82mm) of precipitation is accumulated. In Altoona, during the entire year, the rain falls for 193.1 days and collects up to 35.71" (907mm) of precipitation.

Daylight

In May, the average length of the day in Altoona is 13h and 37min.
On the first day of May in Altoona, Florida, sunrise is at 6:44 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:20 pm EDT.

Sunshine

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

UV index

The months with the highest UV index in Altoona are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 in May interprets into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.