May weather forecast
Captiva, FL

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Weather in May

May brings the onset of summer in Captiva. A significant temperature jump to 83.1°F signifies the imminent heat. There's a sharp incline in rainfall reaching 0.63", hinting at moister conditions. An extended daylight duration of up to 13.5 hours opens extensive recreational prospects. Nonetheless through the perked UV index and soaring temperatures, Captiva remains an enchanting location.

Temperature

May's beginning in Captiva signals an average high-temperature of a still warm 83.1°F, barely different from April's 79.5°F. Throughout May, a modest shift from daytime highs is anticipated, with an average low-temperature of 74.3°F.

Heat index

May's mean heat index is computed to be a tropical 89.6°F. Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
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. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

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

Rainfall

In May, the rain falls for 9.3 days. Throughout May, 0.63" of precipitation is accumulated. In Captiva, Florida, during the entire year, the rain falls for 122 days and collects up to 8.98" of precipitation.

Ocean temperature

In Captiva, Florida, in May, the average water temperature is 78.8°F.
Note: Swimming, diving, and other water-related activities in temperatures between 77°F and 84.2°F are considered highly enjoyable and satisfying for longer durations without uneasiness.

Daylight

The average length of the day in May is 13h and 28min.
On the first day of May in Captiva, Florida, sunrise is at 6:50 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:17 pm EDT.

Sunshine

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

UV index

May 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 risk from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 7 transforms into these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Beware! Reflections from sand and water can intensify the Sun's UV radiation.
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FAQ

How hot does it get in Captiva in May?

In Captiva, 83.1°F is the average high-temperature and 74.3°F is the average low-temperature during May. In May, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is computed to be 89.6°F.

What is the average humidity in May in Captiva?

In May, the average relative humidity in Captiva, Florida, is 73%.

How much does it rain in Captiva in May?

In May, in Captiva, Florida, the rain falls for 9.3 days. Throughout May, 0.63" of precipitation is accumulated.

How warm is the water in May in Captiva?

In Captiva, the average seawater temperature in May is 78.8°F. For swimming, diving, and other water activities, temperatures between 77°F and 84.2°F are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Captiva have in May?

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

When are sunrise and sunset in May in Captiva?

In May, on the first day of the month, sunrise is at 6:50 am and sunset at 8:00 pm. On the last day of the month, in Captiva, Florida, sunrise is at 6:35 am and sunset at 8:17 pm EDT.

What month has the most sunshine in Captiva?

With an average of 11.1h of sunshine, May has the most sunshine of the year in Captiva, Florida.

How many hours of sunshine does Captiva have in May?

The average sunshine duration in May in Captiva is 11.1h.

What is the month with the highest UV index in Captiva?

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

What is the UV index reading in May in Captiva?

In Captiva, the average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Captiva, FL

Average temperature in May - Captiva, 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
Captiva, FL

Average pressure in May - Captiva, 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
Captiva, FL

Average wind speed in May - Captiva, 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
Captiva, FL

Average humidity in May - Captiva, 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
Captiva, FL

Average rainfall in May - Captiva, 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
Captiva, FL

Average rainfall days in May - Captiva, 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 sea temperature in May
Captiva, FL

Average sea temperature in May - Captiva, FL
  • Average sea temperature in May: 79°F

The best month for swimming (with the highest average sea temperature) is August (86°F).
The coldest month (with the lowest average sea temperature) is February (70°F).

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

Average daylight in May / Average sunshine in May - Captiva, 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
Captiva, FL

Average sunshine days in May - Captiva, 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
Captiva, FL

Average UV index in May - Captiva, 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
Captiva, FL

Average cloud cover in May - Captiva, 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
Captiva, FL

Average visibility in May - Captiva, 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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Captiva, Florida, USA

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