April weather forecast
Duck Key, FL

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Weather in April

April, like March, in Duck Key, Florida, is a moderately hot spring month, with an average temperature fluctuating between 77.4°F (25.2°C) and 75°F (23.9°C).

Temperature

Duck Key's weather in April, with an average high-temperature of a still moderately hot 77.4°F (25.2°C), subtly shifts from March's 74.3°F (23.5°C). In April, Duck Key temperatures settle at a low of 75°F (23.9°C) during the nights, reflecting a minor change from daytime highs.

Humidity

The average relative humidity in April is 76%.

Rainfall

In Duck Key, during April, the rain falls for 11.8 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Duck Key, Florida, during the entire year, the rain falls for 186.2 days and collects up to 24.45" (621mm) of precipitation.

Ocean temperature

In April, the average ocean temperature in Duck Key is 79°F (26.1°C).
Note: Water temperatures from 77°F (25°C) to 84.2°F (29°C) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

In Duck Key, Florida, the average length of the day in April is 12h and 45min.
On the first day of the month, sunrise is at 7:14 am and sunset at 7:40 pm. On the last day of April, in Duck Key, sunrise is at 6:48 am and sunset at 7:53 pm EDT.

Sunshine

In April, the average sunshine in Duck Key is 9.9h.

UV index

The months with the highest UV index in Duck Key are April through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 7 in April transforms into this advice:
Ward off overexposure. Defence against solar harm is crucial. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Stay cautious! Sand and water reflections increase UV radiation potency.
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Frequently asked questions

What are April temperatures in Duck Key?

April temperatures in Duck Key, Florida, vary between a high-temperature of 77.4°F (25.2°C) and a low-temperature of 75°F (23.9°C).

What is the average humidity in April in Duck Key?

The average relative humidity in April in Duck Key is 76%.

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

In April, in Duck Key, Florida, the rain falls for 11.8 days. Throughout April, 1.1" (28mm) of precipitation is accumulated.

How warm is the water in April in Duck Key?

In Duck Key, the average seawater temperature in April is 79°F (26.1°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

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

In April, the average day length in Duck Key, Florida, is 12h and 45min.

When are sunrise and sunset in April in Duck Key?

In April, on the first day of the month, sunrise is at 7:14 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:53 pm EDT.

How long on average sun shines in April in Duck Key?

In Duck Key, Florida, the average sunshine duration in April is 9.9h.

When is the highest UV index in Duck Key?

April through October, with an average maximum UV index of 7, are months with the highest UV index in Duck Key.

How high is the UV index in April in Duck Key?

In Duck Key, Florida, the average daily maximum UV index in April is 7. A UV Index value of 6 to 7 symbolizes a high health threat 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 April
Duck Key, FL

Average temperature in April - Duck Key, FL
  • Average high temperature in April: 77.4°F

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.9°F).

  • Average low temperature in April: 75°F

The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (67.5°F).

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Average pressure in April
Duck Key, FL

Average pressure in April - Duck Key, FL
  • Average pressure in April: 30.01"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).

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Average wind speed in April
Duck Key, FL

Average wind speed in April - Duck Key, FL
  • Average wind speed in April: 12.7mph

The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (9mph).

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Average humidity in April
Duck Key, FL

Average humidity in April - Duck Key, FL
  • Average humidity in April: 76%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is March (73%).

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Average rainfall in April
Duck Key, FL

Average rainfall in April - Duck Key, FL
  • Average rainfall in April: 1.1"

The wettest month (with the highest rainfall) is September (4.21").
The driest month (with the least rainfall) is March (0.43").

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Average rainfall days in April
Duck Key, FL

Average rainfall days in April - Duck Key, FL
  • Average rainfall days in April: 11.8 days

The month with the highest number of rainy days is September (23 days).
The month with the least rainy days is February (10.3 days).

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Average sea temperature in April
Duck Key, FL

Average sea temperature in April - Duck Key, FL
  • Average sea temperature in April: 78.9°F

The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest months (with the lowest average sea temperature) are January and February (73.9°F).

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

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

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 36min).

  • Average sunshine in April: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

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Average sunshine days in April
Duck Key, FL

Average sunshine days in April - Duck Key, FL
  • Average sunshine days in April: 13.9 days

The month with the most sunshine days is March (18 days).
The month with the least sunshine days is September (4.6 days).

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Average UV index in April
Duck Key, FL

Average UV index in April - Duck Key, FL
  • Average UV index in April: 7

The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).

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Average cloud cover in April
Duck Key, FL

Average cloud cover in April - Duck Key, FL
  • Average cloud cover in April: 23

The months with the most cloud cover are January and October (Cloud cover 32).
The month with the least cloud cover is April (Cloud cover 23).

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Average visibility in April
Duck Key, FL

Average visibility in April - Duck 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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Duck Key, Florida, USA

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