April weather forecast
Siesta Key, FL

Weather in April

April, the same as March, is a moderately hot spring month in Siesta Key, Florida, with an average temperature fluctuating between 80.2°F (26.8°C) and 67.8°F (19.9°C).

Temperature

In Siesta Key, the average high-temperature in April marginally rises from 74.1°F (23.4°C) in March to a still warm 80.2°F (26.8°C). In April, the average low-temperature is 67.8°F (19.9°C).

Humidity

March through May, with an average relative humidity of 72%, are the least humid months in Siesta Key, Florida.

Rainfall

In Siesta Key, in April, during 11.6 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, in Siesta Key, there are 183.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.

Ocean temperature

In April, the average ocean temperature is 73.4°F (23°C).
Note: For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 73.4°F (23°C).

Daylight

In April, the average length of the day is 12h and 50min.
On the first day of the month, sunrise is at 7:20 am and sunset at 7:47 pm. On the last day of April, in Siesta Key, sunrise is at 6:51 am and sunset at 8:02 pm EDT.

Sunshine

In Siesta Key, Florida, the average sunshine in April is 9.5h.

UV index

In Siesta Key, the average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in April interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What are the least humid months in Siesta Key?

The months with the lowest humidity in Siesta Key, Florida, are March through May, with an average relative humidity of 72%.

What is the average humidity in April in Siesta Key?

In Siesta Key, the average relative humidity in April is 72%.

How many days does it rain in April in Siesta Key?

In Siesta Key, Florida, during April, the rain falls for 11.6 days and regularly aggregates up to 1.34" (34mm) of precipitation.

What is the water temperature in April in Siesta Key?

In April, the average ocean temperature in Siesta Key, Florida, is 73.4°F (23°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 73.4°F (23°C) water.

What is the average length of the day in April in Siesta Key?

The average day length in April in Siesta Key is 12h and 50min.

When are sunrise and sunset in April in Siesta Key?

In April, on the first day of the month, sunrise is at 7:20 am and sunset at 7:47 pm. On the last day of the month, in Siesta Key, sunrise is at 6:51 am and sunset at 8:02 pm EDT.

How many hours of sunshine does Siesta Key have in April?

In April, the average sunshine duration in Siesta Key, Florida, is 9.5h.

What is the UV index reading in April in Siesta Key?

The average daily maximum UV index in April in Siesta Key is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.

Average temperature in April
Siesta Key, FL

Average temperature in April - Siesta Key, FL
  • Average high temperature in April: 80.2°F

The warmest month (with the highest average high temperature) is August (88.5°F).
The month with the lowest average high temperature is January (68.5°F).

  • Average low temperature in April: 67.8°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (56.1°F).

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Average pressure in April
Siesta Key, FL

Average pressure in April - Siesta Key, FL
  • Average pressure in April: 30.02"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

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Average wind speed in April
Siesta Key, FL

Average wind speed in April - Siesta Key, FL
  • Average wind speed in April: 8.7mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

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Average humidity in April
Siesta Key, FL

Average humidity in April - Siesta Key, FL
  • Average humidity in April: 72%

The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are March, April and May (72%).

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Average rainfall in April
Siesta Key, FL

Average rainfall in April - Siesta Key, FL
  • Average rainfall in April: 1.34"

The wettest month (with the highest rainfall) is August (6.42").
The driest months (with the least rainfall) are February and November (1.06").

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Average rainfall days in April
Siesta Key, FL

Average rainfall days in April - Siesta Key, FL
  • Average rainfall days in April: 11.6 days

The month with the highest number of rainy days is August (26.8 days).
The months with the least rainy days are January, February and November (8.3 days).

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Average sea temperature in April
Siesta Key, FL

Average sea temperature in April - Siesta Key, FL
  • Average sea temperature in April: 73.3°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64.1°F).

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Average daylight in April /
Average sunshine in April
Siesta Key, FL

Average daylight in April / Average sunshine in April - Siesta Key, FL
  • Average daylight in April: 12h and 50min

The month with the longest days is June (Average daylight: 13h and 50min).
The month with the shortest days is December (Average daylight: 10h and 28min).

  • Average sunshine in April: 9h and 30min

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 30min).

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Average sunshine days in April
Siesta Key, FL

Average sunshine days in April - Siesta Key, FL
  • Average sunshine days in April: 16.1 days

The month with the most sunshine days is January (21.1 days).
The month with the least sunshine days is August (2.5 days).

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Average UV index in April
Siesta Key, FL

Average UV index in April - Siesta Key, FL
  • Average UV index in April: 6

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in April
Siesta Key, FL

Average cloud cover in April - Siesta Key, FL
  • Average cloud cover in April: 24

The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 22).

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Average visibility in April
Siesta Key, FL

Average visibility in April - Siesta Key, FL
  • Average visibility in April: 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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