May weather forecast
Islandia, FL

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Weather in May

The last month of the spring, May, is also a moderately hot month in Islandia, Florida, with an average temperature fluctuating between 76.6°F (24.8°C) and 84.2°F (29°C).

Temperature

With May's arrival, Islandia notes an average high-temperature of a still moderately hot 84.2°F (29°C), closely following the trend of the preceding month. In Islandia, May nights experience a modest descent in temperature from daily peaks, cooling down to an average of 76.6°F (24.8°C).

Heat index

For most parts of May, the heat index is appraised at a hot 91.4°F (33°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

The average relative humidity in May is 70%.

Rainfall

In Islandia, during May, the rain falls for 19.7 days and regularly aggregates up to 4.61" (117mm) of precipitation. Throughout the year, in Islandia, there are 225.9 rainfall days, and 40.91" (1039mm) of precipitation is accumulated.

Daylight

In May, the average length of the day in Islandia, Florida, is 13h and 23min.
On the first day of May, sunrise is at 6:44 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 8:07 pm EDT.

Sunshine

The average sunshine in May is 10.5h.

UV index

April through September, 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 health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in May interprets into the following advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Islandia in May?

May temperatures in Islandia, Florida, vary between a high-temperature of 84.2°F (29°C) and a low-temperature of 76.6°F (24.8°C). In May, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is appraised at 91.4°F (33°C).

What is the average humidity in May in Islandia?

In Islandia, Florida, the average relative humidity in May is 70%.

How many days does it rain in May in Islandia?

In Islandia, Florida, in May, it is raining for 19.7 days, with typically 4.61" (117mm) of accumulated precipitation.

How many hours of daylight does Islandia have in May?

In May, the average day length is 13h and 23min.

When are sunrise and sunset in May in Islandia?

On the first day of May in Islandia, Florida, sunrise is at 6:44 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 8:07 pm EDT.

How many hours of sunshine does Islandia have in May?

The average sunshine duration in May in Islandia is 10.5h.

What are the months with the highest UV index in Islandia?

The months with the highest UV index in Islandia are April through September, with an average maximum UV index of 7.

What is the UV index intensity in May in Islandia?

The average daily maximum UV index in May in Islandia, Florida, is 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Islandia, FL

Average temperature in May - Islandia, FL
  • Average high temperature in May: 84.2°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 (73.9°F).

  • Average low temperature in May: 76.6°F

The month with the highest average low temperature is August (81.7°F).
The coldest month (with the lowest average low temperature) is January (63.1°F).

Average pressure in May
Islandia, FL

Average pressure in May - Islandia, 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
Islandia, FL

Average wind speed in May - Islandia, FL
  • Average wind speed in May: 9.5mph

The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in May
Islandia, FL

Average humidity in May - Islandia, FL
  • Average humidity in May: 70%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (68%).

Average rainfall in May
Islandia, FL

Average rainfall in May - Islandia, FL
  • Average rainfall in May: 4.61"

The wettest month (with the highest rainfall) is August (6.77").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in May
Islandia, FL

Average rainfall days in May - Islandia, FL
  • Average rainfall days in May: 19.7 days

The month with the highest number of rainy days is August (26.8 days).
The months with the least rainy days are January and February (12.5 days).

Average daylight in May /
Average sunshine in May
Islandia, FL

Average daylight in May / Average sunshine in May - Islandia, 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 3min

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 18min).

Average sunshine days in May
Islandia, FL

Average sunshine days in May - Islandia, FL
  • Average sunshine days in May: 8.6 days

The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (2.1 days).

Average UV index in May
Islandia, FL

Average UV index in May - Islandia, FL
  • Average UV index in May: 7

The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).

Average cloud cover in May
Islandia, FL

Average cloud cover in May - Islandia, FL
  • Average cloud cover in May: 29

The month with the most cloud cover is October (Cloud cover 36).
The month with the least cloud cover is April (Cloud cover 26).

Average visibility in May
Islandia, FL

Average visibility in May - Islandia, 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).

Islandia, Florida, USA

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