United StatesThe weather in March in Key West
It's warm in March in Key West with an average temperature of 27°C. Temperatures this month range from a low of 26°C to a high of 28°C. At night, you can expect temperatures between 21°C and 24°C.
Looking for great weather? March is a good time to be in Key West. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in March for Key West, Florida. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 30°C in 2023, Key West reached the highest temperature in March over the past 10 years. The lowest daytime temperature in this month was 19°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 15°C to a highest value of 27°C.
Water temperature
The water temperature at Key West is 26°C this month. Lovely temperature for a swim.
Rainfall amount
In March, there is an average of 24 mm of precipitation, spread over 5 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in March for Key West
Click on any day in March to get detailed info about the usual weather on that day in Key West. Check out the historical temperatures and precipitation over the past 10 years on this day.
March weather comparison
| Key West | New York | |
|---|---|---|
| Average temperature | 27°C | 11°C |
| Max. temperature | 28°C | 14°C |
| Min. temperature | 21°C | -5°C |
| Total precipitation | 24 mm | 63 mm |
| Rainy days | 5 days | 10 days |
Start of March
The month of March starts in Key West with hot temps, averaging around 27°C during the day and nights around 23°C.
Mid March
By mid-March, daytime temps stay steady at around 27°C, with nights around 23°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of March
By the end of March, the average daytime temperature in Key West is around 28°C, while nighttime temps are about 23°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Key West for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in March in Key West, Florida. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in March in Key West
Temperature in March in Key West over the years
Precipitation charts
These charts show the average amount of precipitation in March in Key West, Florida. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in March in Key West
Total precipitation in March in Key West over the years
Daily UV index in March in Key West
This chart shows the average daily UV index in March in Key West, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in March in Key West
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Average weather in Key West by month
Click on a month below to see detailed weather info for Key West. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.