May weather forecast
Plantation Key, FL

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Weather in May

The last month of the spring, May, is another warm month in Plantation Key, Florida, with temperature in the range of an average low of 78.1°F (25.6°C) and an average high of 80.6°F (27°C).

Temperature

Plantation Key experiences an average high-temperature of a still moderately hot 80.6°F (27°C) in May, subtly different from April's 77.5°F (25.3°C). Consistently, Plantation Key reports average nighttime temperatures of 78.1°F (25.6°C) during May, a marginal step down from its daytime highs.

Heat index

In May, the heat index is evaluated at 84.2°F (29°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

In Plantation Key, the average relative humidity in May is 75%.

Rainfall

In Plantation Key, in May, during 15.3 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, in Plantation Key, Florida, there are 190.1 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Ocean temperature

In Plantation Key, the average seawater temperature in May is 81.1°F (27.3°C).
Note: Surface water temperatures falling between 77°F (25°C) and 84.2°F (29°C) are regarded as prime and extremely agreeable for enduring periods during any water activity.

Daylight

The average length of the day in May in Plantation Key is 13h and 22min.
On the first day of May in Plantation Key, sunrise is at 6:45 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

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 Plantation Key. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 7 during May translates into the following directions:
Guard oneself from overexposure. Defence against sun injury is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Warning! The reflection of sand and water increases the UV dose.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Plantation Key?

In May, the average high-temperature and low-temperature are 80.6°F (27°C) and 78.1°F (25.6°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in May is evaluated at 84.2°F (29°C).

What is the average humidity in May in Plantation Key?

The average relative humidity in May in Plantation Key, Florida, is 75%.

How many days does it rain in May in Plantation Key?

In Plantation Key, during May, the rain falls for 15.3 days and regularly aggregates up to 2.64" (67mm) of precipitation.

What is the ocean temperature in May in Plantation Key?

In Plantation Key, Florida, the average seawater temperature in May is 81.1°F (27.3°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Plantation Key have in May?

In Plantation Key, the average day length in May is 13h and 22min.

When is the sunrise / sunset in May in Plantation Key?

On the first day of May, sunrise is at 6:45 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.

How long on average sun shines in May in Plantation Key?

In Plantation Key, Florida, the average sunshine duration in May is 10.6h.

When is the highest UV index in Plantation Key?

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

What is the UV index reading in May in Plantation Key?

In May, the average daily maximum UV index in Plantation Key, Florida, is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from 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
Plantation Key, FL

Average temperature in May - Plantation Key, 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
Plantation Key, FL

Average pressure in May - Plantation Key, 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
Plantation Key, FL

Average wind speed in May - Plantation Key, 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
Plantation Key, FL

Average humidity in May - Plantation Key, 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
Plantation Key, FL

Average rainfall in May - Plantation Key, 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
Plantation Key, FL

Average rainfall days in May - Plantation Key, 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
Plantation Key, FL

Average sea temperature in May - Plantation 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
Plantation Key, FL

Average daylight in May / Average sunshine in May - Plantation 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 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
Plantation Key, FL

Average sunshine days in May - Plantation Key, 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
Plantation Key, FL

Average UV index in May - Plantation 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
Plantation Key, FL

Average cloud cover in May - Plantation Key, 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
Plantation Key, FL

Average visibility in May - Plantation 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).

Plantation Key, Florida, USA

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