April weather forecast
Longboat Key, FL

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Weather in April

April, the same as March, is a moderately hot spring month in Longboat Key, Florida, with temperature in the range of an average low of 67.8°F (19.9°C) and an average high of 80.2°F (26.8°C).

Temperature

The start of April brings a subtle rise in the average high-temperature, moving from a warm 74.1°F (23.4°C) in March to a still moderately hot 80.2°F (26.8°C). During April nights, Longboat Key records an average temperature of 67.8°F (19.9°C).

Humidity

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

Rainfall

In April, the rain falls for 11.6 days. Throughout April, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 183.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.

Ocean temperature

In Longboat Key, in April, the average water temperature is 73.4°F (23°C).
Note: Think about diving into 73.4°F (23°C) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 77°F (25°C) and 82.4°F (28°C).

Daylight

In Longboat Key, the average length of the day in April is 12h and 50min.
On the first day of the month, sunrise is at 7:20 am and sunset at 7:48 pm. On the last day of April, sunrise is at 6:51 am and sunset at 8:03 pm EDT.

Sunshine

In April, the average sunshine is 9.5h.

UV index

In Longboat Key, the average daily maximum UV index in April is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In April, an average UV index of 6 transforms into the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average April temperature?

The average high-temperature and low-temperature during April are 80.2°F (26.8°C) and 67.8°F (19.9°C) respectively.

What are the least humid months?

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

What is the average humidity in April?

In April, the average relative humidity is 72%.

How much does it rain in April?

In Longboat Key, in April, during 11.6 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

How warm is the water in April?

In Longboat Key, in April, the average water temperature 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.

How many hours of daylight does Longboat Key have in April?

In April, the average day length is 12h and 50min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 7:20 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 8:03 pm EDT.

How long on average sun shines in April?

In April, the average sunshine duration is 9.5h.

What is the UV index reading in April?

In Longboat Key, the average daily maximum UV index in April is 6. A UV Index estimate of 6 to 7 represents a high health threat 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 April
Longboat Key, FL

Average temperature in April - Longboat 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).

Average pressure in April
Longboat Key, FL

Average pressure in April - Longboat 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).

Average wind speed in April
Longboat Key, FL

Average wind speed in April - Longboat 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).

Average humidity in April
Longboat Key, FL

Average humidity in April - Longboat 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%).

Average rainfall in April
Longboat Key, FL

Average rainfall in April - Longboat 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").

Average rainfall days in April
Longboat Key, FL

Average rainfall days in April - Longboat 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).

Average sea temperature in April
Longboat Key, FL

Average sea temperature in April - Longboat 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).

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

Average daylight in April / Average sunshine in April - Longboat Key, FL
  • Average daylight in April: 12h and 5min

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 24min).

  • Average sunshine in April: 9h and 3min

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).

Average sunshine days in April
Longboat Key, FL

Average sunshine days in April - Longboat 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).

Average UV index in April
Longboat Key, FL

Average UV index in April - Longboat 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).

Average cloud cover in April
Longboat Key, FL

Average cloud cover in April - Longboat 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).

Average visibility in April
Longboat Key, FL

Average visibility in April - Longboat 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).

Longboat Key, Florida, USA

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