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Sea Temperature in Key West in March

Complete information on the sea temperature range in the Gulf of Mexico (Gulf of America) in Key West in March. Historical daily data. Climate details for March. Tips on swimming conditions and beach relaxation in Key West. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Key West in March

68°F

MINIMUN

74°F

AVERAGE

81°F

MAXIMUM

Historical Data of Water Temperature in March in Key West

Water Temperature Chart for Gulf of Mexico (Gulf of America) in Key West in March

Sea Temperature Table in Key West in March Over the Past Years

Day202420232022Average
Mar 175°C77°C68°C73°C
Mar 277°C77°C68°C73°C
Mar 377°C75°C70°C73°C
Mar 477°C77°C70°C74°C
Mar 575°C75°C70°C73°C
Mar 675°C75°C70°C73°C
Mar 777°C77°C70°C75°C
Mar 877°C75°C72°C75°C
Mar 977°C75°C72°C75°C
Mar 1075°C75°C72°C75°C
Mar 1177°C75°C72°C76°C
Mar 1277°C75°C72°C75°C
Mar 1373°C77°C73°C74°C
Mar 1475°C77°C73°C75°C
Mar 1575°C75°C73°C75°C
Mar 1675°C75°C73°C75°C
Mar 1777°C77°C73°C76°C
Mar 1879°C75°C75°C76°C
Mar 1977°C77°C75°C77°C
Mar 2075°C77°C75°C77°C
Mar 2175°C77°C75°C76°C
Mar 2275°C77°C75°C76°C
Mar 2377°C77°C77°C77°C
Mar 2475°C77°C77°C76°C
Mar 2577°C79°C77°C77°C
Mar 2675°C79°C77°C77°C
Mar 2777°C77°C77°C77°C
Mar 2877°C77°C79°C77°C
Mar 2975°C77°C79°C77°C
Mar 3079°C77°C79°C78°C
Florida, United StatesFlorida, United StatesFlorida, United States

Key West Climate and Swimming Opportunities in March

79°F

Average Day Air Temperature

64°F

Average Night Air Temperature

2 in

Precipitation Amount per Month

7 days

Number of Rainy Days

12 hrs

Daylight
per Day

9 hrs

Sunshine
per Day

12 mph

Average Wind Speed

71%

Average
humidity

Key West lies within the Florida in United States. The average daytime temperature in Key West in March is 78°F (26°C), while the nighttime average is 64°F (18°C). There are typically seven rainy days during the month, with a total precipitation of 2.1 inches (53 mm). The daylight duration in March in Key West is 12 hours, with an average of 9 hours of sunshine per day. The average wind speed in March is 12 mph (19 km/h), and the humidity level is around 71%.

The water temperature in Key West in March ranges from 72°F to 77°F (22°C to 25°C). At the beginning of the month, the average temperature is around 73°F (23°C), shifting to 75°F (24°C) by mid-March and reaching 77°F (25°C) in the last ten days. Overall, the average sea temperature in Key West for March is 75°F (24°C). Perfect swimming weather — warm water and hot air make for an enjoyable and relaxing experience.

Frequently Asked Questions About Water Temperatures in March in Key West

What is the sea temperature in Key West in March?

The water temperature in the Gulf of Mexico (Gulf of America) in Key West in March ranges from 72°F to 77°F (22°C to 25°C).

Is it possible to swim in the Gulf of Mexico (Gulf of America) in Key West in March?

The average sea temperature in Key West in March is 75°F (24°C), and the air temperature is 78°F (26°C), so perfect swimming weather — warm water and hot air make for an enjoyable and relaxing experience.