April weather forecast and climate
Key Largo, FL

A clear seascape and cloudy evening sky in Key Largo, Florida
A clear seascape and cloudy evening sky in Key Largo, Florida

Weather in April

April, the same as March, is another warm spring month in Key Largo, Florida, with average temperature varying between 77.5°F (25.3°C) and 75°F (23.9°C).

Temperature

In Key Largo, the average high-temperature in April is practically the same as in March - a still warm 77.5°F (25.3°C). In Key Largo, in April, the average low-temperature is 75°F (23.9°C).

Humidity

In April, the average relative humidity in Key Largo is 75%.

Rainfall

In April, the rain falls for 13.3 days. Throughout April, 1.26" (32mm) of precipitation is accumulated. In Key Largo, during the entire year, the rain falls for 190.1 days and collects up to 27.05" (687mm) of precipitation.

Ocean temperature

In Key Largo, the average seawater temperature in April is 78.8°F (26°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Key Largo, the average length of the day is 12.8h.

Sunshine

In April, the average sunshine is 9.9h.

UV index

April through October, with an average maximum UV index of 7, are months with the highest UV index in Key Largo. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 7 in April transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in April in Key Largo?

The average high-temperature, in April, is 77.5°F (25.3°C), while the average low-temperature is 75°F (23.9°C).

What is the average humidity in April in Key Largo?

In Key Largo, the average relative humidity in April is 75%.

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

In Key Largo, Florida, during April, the rain falls for 13.3 days and regularly aggregates up to 1.26" (32mm) of precipitation.

How warm is the water in April in Key Largo?

In Key Largo, Florida, the average seawater temperature in April is 78.8°F (26°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 Key Largo?

In April, the average length of the day is 12.8h.

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

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

What are the months with the highest UV index in Key Largo?

Months with the highest UV index in Key Largo, Florida, are April through October, with an average maximum UV index of 7.

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

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

Average temperature in April
Key Largo, FL

Average temperature in April - Key Largo, FL
  • Average high temperature in April: 77.5°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 (72.7°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 (66.9°F).

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Average pressure in April
Key Largo, FL

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

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

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Average wind speed in April
Key Largo, FL

Average wind speed in April - Key Largo, FL
  • Average wind speed in April: 12.4mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

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Average humidity in April
Key Largo, FL

Average humidity in April - Key Largo, FL
  • Average humidity in April: 75%

Months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).

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Average rainfall in April
Key Largo, FL

Average rainfall in April - Key Largo, FL
  • Average rainfall in April: 1.26"

The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").

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Average rainfall days in April
Key Largo, FL

Average rainfall days in April - Key Largo, FL
  • Average rainfall days in April: 13.3 days

The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).

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Average sea temperature in April
Key Largo, FL

Average sea temperature in April - Key Largo, FL
  • Average sea temperature in April: 78.8°F

The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is February (74°F).

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

Average daylight in April / Average sunshine in April - Key Largo, FL
  • Average daylight in April: 12.8h

The month with the longest days is June (Average daylight: 13.7h).
The month with the shortest days is December (Average daylight: 10.6h).

  • Average sunshine in April: 9.9h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 6.4h).

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Average sunshine days in April
Key Largo, FL

Average sunshine days in April - Key Largo, FL
  • Average sunshine days in April: 14.1 days

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).

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Average UV index in April
Key Largo, FL

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

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
Key Largo, FL

Average cloud cover in April - Key Largo, FL
  • Average cloud cover in April: 26

The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).

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Average visibility in April
Key Largo, FL

Average visibility in April - Key Largo, FL
  • Average visibility in April: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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