May weather forecastGandy, FL
May
Weather in May
The last month of the spring, May, is also a moderately hot month in Gandy, Florida, with an average temperature varying between 83.7°F (28.7°C) and 73°F (22.8°C).Temperature
The onset of May brings with it an average high-temperature of a still moderately hot 83.7°F (28.7°C), showing a negligible variation from the month before. In the month of May, the average temperature dips to a pleasant 73°F (22.8°C) during the night.Heat index
Throughout May, the heat index is estimated at a tropical 89.6°F (32°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
The least humid month is May, with an average relative humidity of 71%.Rainfall
In Gandy, in May, during 13 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. In Gandy, during the entire year, the rain falls for 161.7 days and collects up to 24.76" (629mm) of precipitation.Ocean temperature
In Gandy, the average seawater temperature in May is 78.1°F (25.6°C).Note: In water temperatures ranging between 77°F (25°C) and 84.2°F (29°C), activities such as swimming and diving become highly pleasurable for long durations.
Daylight
In Gandy, the average length of the day in May is 13h and 32min.On the first day of May, sunrise is at 6:50 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:22 pm EDT.
Sunshine
The month with the most sunshine is May, with an average of 11.2h 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 reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 7 in May translates into these instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Gandy, FL
- Average high temperature in May: 83.7°F
The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (66.7°F).
- Average low temperature in May: 73°F
The month with the highest average low temperature is August (80.4°F).
The coldest month (with the lowest average low temperature) is January (55.2°F).
Average pressure in May
Gandy, FL
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in May
Gandy, FL
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in May
Gandy, FL
- Average humidity in May: 71%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is May (71%).
Average rainfall in May
Gandy, FL
- Average rainfall in May: 1.65"
The wettest month (with the highest rainfall) is July (4.61").
The driest month (with the least rainfall) is November (0.83").
Average rainfall days in May
Gandy, FL
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is July (24.3 days).
The month with the least rainy days is November (7.2 days).
Average sea temperature in May
Gandy, FL
- Average sea temperature in May: 78.2°F
The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64°F).
Average daylight in May /
Average sunshine in May
Gandy, FL
- Average daylight in May: 13h and 30min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in May: 11h and 12min
The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in May
Gandy, FL
- Average sunshine days in May: 15.4 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (4.3 days).
Average UV index in May
Gandy, FL
- Average UV index in May: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in May
Gandy, FL
- Average cloud cover in May: 21
The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 21).
Average visibility in May
Gandy, FL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





