Is March or April better for Florida Keys?

They usually grade the same (A-). Highs are 77°F in March and 78°F in April; April is usually less crowded.

How warm is the water in Florida Keys at spring break?

About 77°F in March and 78°F in April. Most swimmers find it comfortable.

How does Florida Keys rank for spring break?

9th of the 54 beach destinations Veabird grades for March and April. Usually better: the Yucatán Gulf Coast and Southwest Florida.

Spring break in Florida Keys

Spring break in Florida Keys usually means highs near 77°F in March and 78°F in April, water around 77°F, and a typical day grading A- in both months. Beaches are packed in March and very busy in April (College & school spring break and Semana Santa / Easter). Both months are outside hurricane season.

March vs April

Month	Typical day	High	Water	Rain chance	Crowds
March	A-	77°F	77°F	22%	Packed
April	A-	78°F	78°F	24%	Very busy

Best beaches in Florida Keys for spring break

Resorts with the best typical March and April, and their grades for the next few days.

Ocean Reef Club Mar A- · Apr A-FriB+SatB+SunA-MonA-TueA-
Hawks Cay Resort Mar A- · Apr A-FriB+SatB+SunA-MonA-TueA-
Baker's Cay Resort Key Largo Mar A- · Apr A-FriA-SatA-SunAMonATueA
Playa Largo Resort & Spa Mar A- · Apr A-FriA-SatB+SunA-MonA-TueA-
Islander Resort Mar A- · Apr A-FriB+SatBSunA-MonA-TueA-
Cheeca Lodge & Spa Mar A- · Apr A-FriB+SatBSunA-MonA-TueA-
Casa Morada Mar A- · Apr A-FriA-SatB+SunA-MonATueA-
The Moorings Village Mar A- · Apr A-FriB+SatBSunA-MonA-TueA-

Grades for the next few days from Veabird's beach forecast, updated Oct 9, 12:00 UTC. Higher is better: A+ to F.

Usually better for spring break

The Yucatán Gulf Coast Mar A · Apr A-
Southwest Florida Mar A- · Apr A

Questions

Is Florida Keys good for spring break?: Spring break in Florida Keys usually means highs near 77°F in March and 78°F in April, water around 77°F, and a typical day grading A- in both months. Beaches are packed in March and very busy in April (College & school spring break and Semana Santa / Easter). Both months are outside hurricane season.
Is March or April better for Florida Keys?: They usually grade the same (A-). Highs are 77°F in March and 78°F in April; April is usually less crowded.
How warm is the water in Florida Keys at spring break?: About 77°F in March and 78°F in April. Most swimmers find it comfortable.
How does Florida Keys rank for spring break?: 9th of the 54 beach destinations Veabird grades for March and April. Usually better: the Yucatán Gulf Coast and Southwest Florida.

Plan it

Typical-month numbers from Veabird's year-ahead outlook for the 21 resorts here (median resort): ERA5 climate normals, holiday crowd calendars and the typical seaweed season.