March weather forecast
Key Biscayne, FL

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The beautiful and dramatic landscape of the Miami Crandon Park in Key Biscayne, Florida
The beautiful and dramatic landscape of the Miami Crandon Park in Key Biscayne, Florida

Weather in March

The first month of the spring, March, is also a moderately hot month in Key Biscayne, Florida, with an average temperature ranging between max 75.6°F (24.2°C) and min 69.1°F (20.6°C).

Temperature

Key Biscayne's average high-temperature in March sits at a still warm 75.6°F (24.2°C), showing little difference from the previous month. Key Biscayne indicates a consistently low-temperature of 69.1°F (20.6°C) during the nights of March.

Humidity

March is the least humid month in Key Biscayne, Florida, with an average relative humidity of 70%.

Rainfall

In Key Biscayne, during March, the rain falls for 9.3 days and regularly aggregates up to 0.51" (13mm) of precipitation. Throughout the year, in Key Biscayne, Florida, there are 182.7 rainfall days, and 16.38" (416mm) of precipitation is accumulated.

Ocean temperature

In March, the average ocean temperature in Key Biscayne is 75.7°F (24.3°C).
Note: Individual cold sensitivities, influenced by sunshine, wind, and the ambient temperature, play a role in finding a swim in 75.7°F (24.3°C) water pleasant. (Olympic swimming events mandate water temperatures from 77°F (25°C) to 82.4°F (28°C).)

Daylight

The average length of the day in March in Key Biscayne is 12h and 2min.
On the first day of the month, sunrise is at 6:42 am and sunset at 6:22 pm EST. On the last day of March, sunrise is at 7:12 am and sunset at 7:37 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

In Key Biscayne, Florida, the average sunshine in March is 8.7h.

UV index

In Key Biscayne, the average daily maximum UV index in March is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: During March, 6 as the daily maximum UV index converts into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
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Frequently asked questions

What are the temperatures in Key Biscayne in March?

The average high-temperature and low-temperature in Key Biscayne during March are 75.6°F (24.2°C) and 69.1°F (20.6°C) respectively.

What is the least humid month in Key Biscayne?

With an average relative humidity of 70%, March is the least humid month in Key Biscayne, Florida.

What is the average humidity in March in Key Biscayne?

In March, the average relative humidity in Key Biscayne is 70%.

How many days does it rain in March in Key Biscayne?

In Key Biscayne, in March, during 9.3 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

How warm is the water in March in Key Biscayne?

In Key Biscayne, Florida, the average seawater temperature in March is 75.7°F (24.3°C). 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 75.7°F (24.3°C).

What is the average length of the day in March in Key Biscayne?

In Key Biscayne, Florida, the average day length in March is 12h and 2min.

What time are sunrise and sunset in March in Key Biscayne?

On the first day of March in Key Biscayne, sunrise is at 6:42 am and sunset at 6:22 pm EST. On the last day of the month, sunrise is at 7:12 am and sunset at 7:37 pm EDT.

When does Daylight Saving Time (DST) start in March in Key Biscayne?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Key Biscayne, and the time zone changes from EST to EDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How many hours of sunshine does Key Biscayne have in March?

In March, the average sunshine duration in Key Biscayne, Florida, is 8.7h.

What is the UV index intensity in March in Key Biscayne?

In March, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in March
Key Biscayne, FL

Average temperature in March - Key Biscayne, FL
  • Average high temperature in March: 75.6°F

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (73°F).

  • Average low temperature in March: 69.1°F

The month with the highest average low temperature is August (82.6°F).
The coldest month (with the lowest average low temperature) is January (65.1°F).

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Average pressure in March
Key Biscayne, FL

Average pressure in March - Key Biscayne, FL
  • Average pressure in March: 30.08"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 March
Key Biscayne, FL

Average wind speed in March - Key Biscayne, FL
  • Average wind speed in March: 11.6mph

The windiest month (with the highest average wind speed) is March (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

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Average humidity in March
Key Biscayne, FL

Average humidity in March - Key Biscayne, FL
  • Average humidity in March: 70%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in March
Key Biscayne, FL

Average rainfall in March - Key Biscayne, FL
  • Average rainfall in March: 0.51"

The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in March
Key Biscayne, FL

Average rainfall days in March - Key Biscayne, FL
  • Average rainfall days in March: 9.3 days

The month with the highest number of rainy days is September (24.5 days).
The month with the least rainy days is February (8.7 days).

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Average sea temperature in March
Key Biscayne, FL

Average sea temperature in March - Key Biscayne, FL
  • Average sea temperature in March: 75.7°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 March /
Average sunshine in March
Key Biscayne, FL

Average daylight in March / Average sunshine in March - Key Biscayne, FL
  • Average daylight in March: 12h and 0min

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 March: 8h and 4min

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 24min).

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Average sunshine days in March
Key Biscayne, FL

Average sunshine days in March - Key Biscayne, FL
  • Average sunshine days in March: 17 days

The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (3.2 days).

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Average UV index in March
Key Biscayne, FL

Average UV index in March - Key Biscayne, FL
  • Average UV index in March: 6

The months with the highest UV index are May, June, July, August, September and October (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 March
Key Biscayne, FL

Average cloud cover in March - Key Biscayne, FL
  • Average cloud cover in March: 28

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 March
Key Biscayne, FL

Average visibility in March - Key Biscayne, FL
  • Average visibility in March: 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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Key Biscayne, Florida, USA

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