Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average sea temperature in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
Key West experiences a recorded average high-temperature of a moderately hot 73.9°F (23.3°C) in March, closely aligned with February's 73°F (22.8°C). Registering an almost steady temperature, Key West's nights in March see an average low of 70.5°F (21.4°C).Humidity
In March, the average relative humidity is 75%.Rainfall
March is the month with the least rainfall. Rain falls for 11.7 days and accumulates 0.67" (17mm) of precipitation.Ocean temperature
In Key West, in March, the average water temperature is 73.2°F (22.9°C).Note: 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 73.2°F (22.9°C).
Daylight
In March, the average length of the day is 12h and 2min.On the first day of March, sunrise is at 6:48 am and sunset at 6:29 pm EST. On the last day of the month, sunrise is at 7:18 am and sunset at 7:43 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 West, the average sunshine in March is 8.9h.UV index
The average daily maximum UV index in March is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 6 during March translates into the following directions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Notice! The reflection of water and sand increases the UV radiation significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are March temperatures?
What is the average humidity in March?
What is the driest month?
How many days does it rain in March?
How warm is the water in March?
What is the average length of the day in March in Key West?
When are sunrise and sunset in March?
When does Daylight Saving Time (DST) start in March in Key West?
How long on average sun shines in March?
What is the UV index intensity in March?
Average temperature in March
Key West, FL
- Average high temperature in March: 73.9°F
The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (72.7°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 (68.5°F).
Average pressure in March
Key West, FL
- Average pressure in March: 30.07"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are September and October (29.93"Hg).
Average wind speed in March
Key West, FL
- Average wind speed in March: 14mph
The windiest months (with the highest average wind speed) are January and November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.5mph).
Average humidity in March
Key West, FL
- Average humidity in March: 75%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are July, August and September (74%).
Average rainfall in March
Key West, FL
- Average rainfall in March: 0.67"
The wettest month (with the highest rainfall) is September (5.12").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in March
Key West, FL
- Average rainfall days in March: 11.7 days
The months with the highest number of rainy days are August and September (23.1 days).
The month with the least rainy days is February (11 days).
Average sea temperature in March
Key West, FL
- Average sea temperature in March: 73.3°F
The best month for swimming (with the highest average sea temperature) is August (86.9°F).
The coldest months (with the lowest average sea temperature) are January and February (71.2°F).
Average daylight in March /
Average sunshine in March
Key West, FL
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 13h and 36min).
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 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in March
Key West, 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 (4.5 days).
Average UV index in March
Key West, 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
Key West, FL
- Average cloud cover in March: 24
The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility in March
Key West, 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).
Key West, Florida, USA
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