March weather forecast
Duck Key, FL

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Weather in March

The first month of the spring, March, is also a moderately hot month in Duck Key, Florida, with an average temperature ranging between max 74.3°F (23.5°C) and min 70.5°F (21.4°C).

Temperature

In March, Duck Key experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 74.3°F (23.5°C), closely mirroring the climate in February. During March, the nighttime temperatures align closely with the daytime averages, measuring a pleasant 70.5°F (21.4°C).

Humidity

The least humid month is March, with an average relative humidity of 73%.

Rainfall

The month with the least rainfall is March, when the rain falls for 10.8 days and typically collects 0.43" (11mm) of precipitation.

Ocean temperature

In Duck Key, Florida, in March, the average water temperature is 75.6°F (24.2°C).
Note: For someone sensitive to cold, swimming in 75.6°F (24.2°C) waters can be invigorating, especially when considering elements like sunshine, wind, and current air temperature. (As a reference, Olympic swimming waters are kept between 77°F (25°C) and 82.4°F (28°C).)

Daylight

In March, the average length of the day is 12h and 2min.
On the first day of the month, sunrise is at 6:45 am and sunset at 6:26 pm EST. On the last day of March, sunrise is at 7:15 am and sunset at 7:39 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 Duck Key, the average sunshine in March is 8.9h.

UV index

In March, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 6 during March translates into the following guidance:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be attentive! The UV exposure is heightened with reflections from sand and water.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in March?

March temperatures vary between a high-temperature of 74.3°F (23.5°C) and a low-temperature of 70.5°F (21.4°C).

What is the least humid month?

March is the least humid month, with an average relative humidity of 73%.

What is the average humidity in March?

In March, the average relative humidity is 73%.

What is the driest month?

March is the month with the least rainfall. Rain falls for 10.8 days and accumulates 0.43" (11mm) of precipitation.

How many days does it rain in March?

In Duck Key, Florida, during March, the rain falls for 10.8 days and regularly aggregates up to 0.43" (11mm) of precipitation.

What is the water temperature in March?

In Duck Key, in March, the average water temperature is 75.6°F (24.2°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 75.6°F (24.2°C) water may be enjoyable.

What is the average length of the day in March?

In March, the average day length is 12h and 2min.

When are sunrise and sunset in March in Duck Key?

In March, on the first day of the month, sunrise is at 6:45 am and sunset at 6:26 pm EST. On the last day of the month, sunrise is at 7:15 am and sunset at 7:39 pm EDT.

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 Duck Key have in March?

In Duck Key, the average sunshine duration in March is 8.9h.

What is the UV index intensity in March?

In Duck Key, the average daily maximum UV index in March is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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 March
Duck Key, FL

Average temperature in March - Duck Key, FL
  • Average high temperature in March: 74.3°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 March: 70.5°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).

Average pressure in March
Duck Key, FL

Average pressure in March - Duck Key, FL
  • Average pressure in March: 30.07"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).

Average wind speed in March
Duck Key, FL

Average wind speed in March - Duck Key, FL
  • Average wind speed in March: 13.3mph

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).

Average humidity in March
Duck Key, FL

Average humidity in March - Duck Key, FL
  • Average humidity in March: 73%

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

Average rainfall in March
Duck Key, FL

Average rainfall in March - Duck Key, FL
  • Average rainfall in March: 0.43"

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

Average rainfall days in March
Duck Key, FL

Average rainfall days in March - Duck Key, FL
  • Average rainfall days in March: 10.8 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).

Average sea temperature in March
Duck Key, FL

Average sea temperature in March - Duck Key, FL
  • Average sea temperature in March: 75.6°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).

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

Average daylight in March / Average sunshine in March - Duck Key, 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 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).

Average sunshine days in March
Duck Key, FL

Average sunshine days in March - Duck Key, FL
  • Average sunshine days in March: 18 days

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

Average UV index in March
Duck Key, FL

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

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).

Average cloud cover in March
Duck Key, FL

Average cloud cover in March - Duck Key, FL
  • Average cloud cover in March: 25

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).

Average visibility in March
Duck Key, FL

Average visibility in March - Duck Key, 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).

Duck Key, Florida, USA

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