May weather forecast
Cayo Costa, FL

Weather in May

The last month of the spring, May, is another warm month in Cayo Costa, Florida, with temperature in the range of an average low of 74.3°F (23.5°C) and an average high of 83.1°F (28.4°C).

Temperature

In Cayo Costa, the average high-temperature in May is practically the same as in April - a still moderately hot 83.1°F (28.4°C). In May, in Cayo Costa, the average low-temperature is 74.3°F (23.5°C).

Heat index

In May, the average heat index is evaluated at a hot 89.6°F (32°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like metabolic differences, pregnancy, wind, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Cayo Costa, the average relative humidity in May is 73%.

Rainfall

In May, the rain falls for 9.3 days. Throughout May, 0.63" (16mm) of precipitation is accumulated. Throughout the year, in Cayo Costa, there are 122 rainfall days, and 8.98" (228mm) of precipitation is accumulated.

Daylight

In Cayo Costa, the average length of the day in May is 13h and 28min.
On the first day of May, sunrise is at 6:50 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:17 pm EDT.

Sunshine

May has the most sunshine of the year in Cayo Costa, with an average of 11.1h 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 of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 7 in May interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in May in Cayo Costa?

In May, in Cayo Costa, Florida, the average high-temperature is 83.1°F (28.4°C), and the average low-temperature is 74.3°F (23.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in May is evaluated at 89.6°F (32°C).

What is the average humidity in May in Cayo Costa?

The average relative humidity in May is 73%.

How much does it rain in Cayo Costa in May?

In May, in Cayo Costa, Florida, the rain falls for 9.3 days. Throughout May, 0.63" (16mm) of precipitation is accumulated.

How many hours of daylight does Cayo Costa have in May?

In May, the average day length in Cayo Costa, Florida, is 13h and 28min.

What time are sunrise and sunset in May in Cayo Costa?

In May, on the first day of the month, sunrise is at 6:50 am and sunset at 8:01 pm. On the last day of the month, in Cayo Costa, Florida, sunrise is at 6:35 am and sunset at 8:17 pm EDT.

What month has the most sunshine in Cayo Costa?

The month with the most sunshine in Cayo Costa is May, with an average of 11.1h of sunshine.

How long on average sun shines in May in Cayo Costa?

In Cayo Costa, Florida, the average sunshine duration in May is 11.1h.

When is the highest UV index in Cayo Costa?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Cayo Costa, Florida.

What is the UV index intensity in May in Cayo Costa?

In May, the average daily maximum UV index in Cayo Costa, 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
Cayo Costa, FL

Average temperature in May - Cayo Costa, FL
  • Average high temperature in May: 83.1°F

The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (70°F).

  • Average low temperature in May: 74.3°F

The month with the highest average low temperature is August (81°F).
The coldest month (with the lowest average low temperature) is January (58.8°F).

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Average pressure in May
Cayo Costa, FL

Average pressure in May - Cayo Costa, FL
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

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Average wind speed in May
Cayo Costa, FL

Average wind speed in May - Cayo Costa, FL
  • Average wind speed in May: 8.5mph

The windiest months (with the highest average wind speed) are October and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in May
Cayo Costa, FL

Average humidity in May - Cayo Costa, FL
  • Average humidity in May: 73%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in May
Cayo Costa, FL

Average rainfall in May - Cayo Costa, FL
  • Average rainfall in May: 0.63"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is March (0.16").

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Average rainfall days in May
Cayo Costa, FL

Average rainfall days in May - Cayo Costa, FL
  • Average rainfall days in May: 9.3 days

The month with the highest number of rainy days is September (19.5 days).
The month with the least rainy days is February (4.1 days).

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Average daylight in May /
Average sunshine in May
Cayo Costa, FL

Average daylight in May / Average sunshine in May - Cayo Costa, FL
  • Average daylight in May: 13h and 3min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in May: 11h and 1min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in May
Cayo Costa, FL

Average sunshine days in May - Cayo Costa, FL
  • Average sunshine days in May: 18.3 days

The month with the most sunshine days is January (25.1 days).
The month with the least sunshine days is September (7.2 days).

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Average UV index in May
Cayo Costa, FL

Average UV index in May - Cayo Costa, 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 months with the lowest UV index are January and February (UV index 5).

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Average cloud cover in May
Cayo Costa, FL

Average cloud cover in May - Cayo Costa, FL
  • Average cloud cover in May: 23

The month with the most cloud cover is January (Cloud cover 29).
The months with the least cloud cover are March and May (Cloud cover 23).

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Average visibility in May
Cayo Costa, FL

Average visibility in May - Cayo Costa, 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).

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