Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May brings an average high-temperature of a still warm 80.4°F (26.9°C), subtly diverging from April's 77.4°F (25.2°C). May nights register a minor temperature decline, steadying at a still warm 77.7°F (25.4°C).Humidity
The average relative humidity in May is 76%.Rainfall
In May, in Duck Key, the rain falls for 15.4 days. Throughout May, 2.48" (63mm) of precipitation is accumulated. Throughout the year, there are 186.2 rainfall days, and 24.45" (621mm) of precipitation is accumulated.Ocean temperature
In Duck Key, Florida, in May, the average water temperature is 81.1°F (27.3°C).Note: Water temperature ranging between 77°F (25°C) and 84.2°F (29°C) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.
Daylight
The average length of the day in May is 13h and 21min.On the first day of May in Duck Key, sunrise is at 6:47 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:08 pm EDT.
Sunshine
The average sunshine in May is 10.9h.UV index
April through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 7 in May translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. 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. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Stay aware! UV radiation is magnified when reflecting off sand and water.
Frequently asked questions
What are May temperatures in Duck Key?
What is the average humidity in May in Duck Key?
How many days does it rain in May in Duck Key?
What is the water temperature in May in Duck Key?
What is the average length of the day in May in Duck Key?
When is the sunrise / sunset in May in Duck Key?
How many hours of sunshine does Duck Key have in May?
What is the month with the highest UV index in Duck Key?
What is the UV index reading in May in Duck Key?
Average temperature in May
Duck Key, FL
- Average high temperature in May: 80.4°F
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.9°F).
- Average low temperature in May: 77.7°F
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (67.5°F).
Average pressure in May
Duck Key, FL
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).
Average wind speed in May
Duck Key, FL
- Average wind speed in May: 11.8mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (9mph).
Average humidity in May
Duck Key, FL
- Average humidity in May: 76%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is March (73%).
Average rainfall in May
Duck Key, FL
- Average rainfall in May: 2.48"
The wettest month (with the highest rainfall) is September (4.21").
The driest month (with the least rainfall) is March (0.43").
Average rainfall days in May
Duck Key, FL
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is September (23 days).
The month with the least rainy days is February (10.3 days).
Average sea temperature in May
Duck Key, FL
- Average sea temperature in May: 81.1°F
The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest months (with the lowest average sea temperature) are January and February (73.9°F).
Average daylight in May /
Average sunshine in May
Duck Key, FL
- Average daylight in May: 13h and 2min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in May
Duck Key, FL
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is March (18 days).
The month with the least sunshine days is September (4.6 days).
Average UV index in May
Duck Key, FL
- Average UV index in May: 7
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in May
Duck Key, FL
- Average cloud cover in May: 26
The months with the most cloud cover are January and October (Cloud cover 32).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility in May
Duck Key, 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).
Duck Key, Florida, USA
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