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
With May's arrival, Islamorada's weather records an average high-temperature of a still warm 80.6°F (27°C), marking little difference from April's 77.5°F (25.3°C). May's average low temperature in Islamorada is a still moderately hot 78.1°F (25.6°C), displaying a subtle drop from its daily peak.Heat index
For most parts of May, the heat index is calculated to be 84.2°F (29°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
In May, the average relative humidity is 75%.Rainfall
In May, the rain falls for 15.3 days. Throughout May, 2.64" (67mm) of precipitation is accumulated. In Islamorada, during the entire year, the rain falls for 190.1 days and collects up to 27.05" (687mm) of precipitation.Ocean temperature
In Islamorada, the average seawater temperature in May is 81.1°F (27.3°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 Islamorada, the average length of the day in May is 13h and 22min.On the first day of May, sunrise is at 6:46 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 8:07 pm EDT.
Sunshine
In Islamorada, the average sunshine in May is 10.6h.UV index
April through October, with an average maximum UV index of 7, are months with the highest UV index in Islamorada. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 7 in May converts into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
Frequently asked questions
What is the temperature in May in Islamorada?
What is the average humidity in May in Islamorada?
How many days does it rain in May in Islamorada?
What is the water temperature in May in Islamorada?
How many hours of daylight does Islamorada have in May?
When is the sunrise / sunset in May in Islamorada?
How many hours of sunshine does Islamorada have in May?
What are the months with the highest UV index in Islamorada?
How high is the UV index in May in Islamorada?
Average temperature in May
Islamorada, FL
- Average high temperature in May: 80.6°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 (72.7°F).
- Average low temperature in May: 78.1°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 (66.9°F).
Average pressure in May
Islamorada, FL
- Average pressure in May: 30"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
Islamorada, FL
- Average wind speed in May: 11.6mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in May
Islamorada, FL
- Average humidity in May: 75%
The months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).
Average rainfall in May
Islamorada, FL
- Average rainfall in May: 2.64"
The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").
Average rainfall days in May
Islamorada, FL
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).
Average sea temperature in May
Islamorada, 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
Islamorada, 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 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in May
Islamorada, FL
- Average sunshine days in May: 13 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).
Average UV index in May
Islamorada, 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
Islamorada, FL
- Average cloud cover in May: 29
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility in May
Islamorada, 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).
Islamorada, Florida, USA
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