May weather forecast
Rio Vista Isles, FL

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Weather in May

May, the last month of the spring in Rio Vista Isles, is another warm month, with an average temperature fluctuating between 82°F (27.8°C) and 76.3°F (24.6°C).

Temperature

As April transitions into May, Rio Vista Isles records an average high-temperature of a still warm 82°F (27.8°C), showing a gentle shift from the preceding month. During May, Rio Vista Isles's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 76.3°F (24.6°C).

Heat index

The average heat index in May is evaluated at a tropical 87.8°F (31°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

The average relative humidity in May in Rio Vista Isles is 72%.

Rainfall

In Rio Vista Isles, in May, it is raining for 14.7 days, with typically 1.65" (42mm) of accumulated precipitation. In Rio Vista Isles, during the entire year, the rain falls for 179 days and collects up to 15.55" (395mm) of precipitation.

Daylight

In Rio Vista Isles, the average length of the day in May is 13h and 26min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:52 pm. On the last day of May, sunrise is at 6:28 am and sunset at 8:08 pm EDT.

Sunshine

In Rio Vista Isles, Florida, the average sunshine in May is 10.7h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in May interprets into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What are May temperatures in Rio Vista Isles?

The high-temperature, in May, in Rio Vista Isles, records 82°F (27.8°C), while the low-temperature is 76.3°F (24.6°C). In May, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in May in Rio Vista Isles?

In Rio Vista Isles, Florida, the average relative humidity in May is 72%.

How much does it rain in Rio Vista Isles in May?

In Rio Vista Isles, Florida, in May, during 14.7 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

How many hours of daylight does Rio Vista Isles have in May?

In May, the average day length in Rio Vista Isles is 13h and 26min.

When are sunrise and sunset in May in Rio Vista Isles?

On the first day of May in Rio Vista Isles, sunrise is at 6:42 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:08 pm EDT.

How many hours of sunshine does Rio Vista Isles have in May?

In Rio Vista Isles, the average sunshine duration in May is 10.7h.

What are the months with the highest UV index in Rio Vista Isles?

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

How high is the UV index in May in Rio Vista Isles?

In Rio Vista Isles, the average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Rio Vista Isles, FL

Average temperature in May - Rio Vista Isles, FL
  • Average high temperature in May: 82°F

The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (73°F).

  • Average low temperature in May: 76.3°F

The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).

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Average pressure in May
Rio Vista Isles, FL

Average pressure in May - Rio Vista Isles, FL
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).

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Average wind speed in May
Rio Vista Isles, FL

Average wind speed in May - Rio Vista Isles, FL
  • Average wind speed in May: 10.2mph

The windiest month (with the highest average wind speed) is March (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in May
Rio Vista Isles, FL

Average humidity in May - Rio Vista Isles, FL
  • Average humidity in May: 72%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (69%).

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Average rainfall in May
Rio Vista Isles, FL

Average rainfall in May - Rio Vista Isles, FL
  • Average rainfall in May: 1.65"

The wettest month (with the highest rainfall) is August (2.68").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in May
Rio Vista Isles, FL

Average rainfall days in May - Rio Vista Isles, FL
  • Average rainfall days in May: 14.7 days

The month with the highest number of rainy days is September (23.6 days).
The month with the least rainy days is February (8.3 days).

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Average daylight in May /
Average sunshine in May
Rio Vista Isles, FL

Average daylight in May / Average sunshine in May - Rio Vista Isles, 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 30min).

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 18min).

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Average sunshine days in May
Rio Vista Isles, FL

Average sunshine days in May - Rio Vista Isles, FL
  • Average sunshine days in May: 12.6 days

The month with the most sunshine days is January (17.4 days).
The month with the least sunshine days is September (3.9 days).

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Average UV index in May
Rio Vista Isles, FL

Average UV index in May - Rio Vista Isles, 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 December (UV index 5).

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Average cloud cover in May
Rio Vista Isles, FL

Average cloud cover in May - Rio Vista Isles, FL
  • Average cloud cover in May: 28

The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 27).

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Average visibility in May
Rio Vista Isles, FL

Average visibility in May - Rio Vista Isles, 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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Rio Vista Isles, Florida, USA

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