May weather forecast
Grand Island, FL

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

Temperature

May's advent denotes a minor fluctuation in the average high-temperature to a hot 86.2°F (30.1°C) from April's 82.2°F (27.9°C). Grand Island records a mean low-temperature of 68°F (20°C) in May.

Heat index

The heat index value during May is computed to be a fiery hot 96.8°F (36°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In May, the average relative humidity is 73%.

Rainfall

In Grand Island, during May, the rain falls for 16.7 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Grand Island, Florida, during the entire year, the rain falls for 193.1 days and collects up to 35.71" (907mm) of precipitation.

Daylight

In Grand Island, the average length of the day in May 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, in Grand Island, 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 Grand Island.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In May, a daily maximum UV index of 7 leads to the following instructions:
Ward off overexposure. Defence against solar harm is crucial. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.