World Resorts USA Key West Weather

Key West weather in March

Weather in Key West: March

Average day temperature: 75.7°F
Average night temperature: 72.5°F
Sea water temperature: 75.9°F
Number of sunny days: 16 days
Day length: 11.7 - 12.4 hours
Number of rainy days: 1 day
Precipitation totals: 0.6 in.

Air temperature in March, °F

Show year:
2024
2023
2022

The highest day temperature during March of 2024 was 78°F. At the same time the lowest night temperature was 71°F. Day and night temperature averages during March were 76.0°F and 75.8°F.

Sea water temperature in Key West in March, °F

Show year:
2024
2023
2022

The average sea water temperature in March of 2024 was 76.5°F. The highest and lowest sea temperatures during the month were 79.2°F and 72.3°F.

Sunny, partly cloudy and cloudy days

Mostly all days in March are sunny but cloudy days are also possible.

Precipitation total in March, in.

Precipitation total value in Key West in March is 0.7 in. Other months of the year show relatively similar values.

Wind speed in March, mph

The average wind speed value in March is 13.6 mph It makes March one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in March is: 7.6.

Best time for vacation in Key West

Sunniest months:
March 16 days
April 16 days
May 16 days
Warmest months:
August 87.5 °F
July 87.0 °F
September 85.8 °F
Warmest sea temp:
August 87.0 °F
July 86.5 °F
September 86.0 °F
Coldest months:
January 72.4 °F
February 74.0 °F
December 75.7 °F
Rainiest months:
August 7 days
July 7 days
September 7 days
Windiest months:
November 14.7 mph
December 13.7 mph
March 13.7 mph

Key West on a weather map

Key West
+66°F
S 15 mph
Feels like: +66°F
Precip.: 0%
Places in USA:
Name
°F
+14°F
+23°F
+75°F
+75°F
+50°F
+54°F
+61°F
+19°F
+50°F
+54°F
+54°F
+48°F
+46°F
+46°F
+23°F
24 Hours Forecast
Key West
Local time: 04:34
December 22, sunday
0600
66°F
S
15 mph
0900
64°F
S
14 mph
1200
68°F
SW
11 mph
1500
68°F
S
12 mph
1800
70°F
S
11 mph
2100
68°F
S
12 mph
December 23, monday
0000
70°F
SW
10 mph
0300
70°F
SW
15 mph
Units of measurement: °C / °F