How warm is Cancún in March?

Typical highs are about 84°F and the sea is about 80°F. That is warm enough for long swims without a wetsuit.

Is there sargassum in Cancún in March?

In a typical year seaweed is moderate in March. It is usually lightest in January and December and heaviest in July and August. Landings vary a lot by year, wind and currents; Veabird's weekly sargassum report and each beach's page have the current forecast.

Is March hurricane season in Cancún?

No. Storm risk is very low in March.

How crowded is Cancún in March?

Typically packed, around College & school spring break and Semana Santa / Easter. The quietest months are usually September and October.

Cancún in March

March is a good month for Cancún: a typical day grades B, the 4th best of the 12 months. Expect highs near 84°F, water around 80°F and about a 37% chance of rain on a given day. Sargassum (seaweed) is usually moderate in March. Beaches are typically packed (College & school spring break and Semana Santa / Easter).

Typical dayB4th of 12 months

Highs / water84°FSea 80°F

Rain chance37%on a given day

SeaweedModeratetypical year

CrowdsPackedCollege & school spring break

Storm riskVery lowoutside storm season

Cancún month by month

Typical grade and high for each month. Higher is better: A+ to F.

February: B · March: B · April: B. The best months are usually February, April and May, and the weakest are August and September.

Best beaches in Cancún in March

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

Beach	Typical Mar	Seaweed	This week
Holbox Island Hotels	A	Very low	SatC+SunC+MonC-TueCWedC
Villas Flamingos	A	Very low	SatC+SunC+MonC-TueCWedC
Villas Delphines	A	Very low	SatC+SunC+MonC-TueCWedC
Xaloc Resort	A	Very low	SatC+SunC+MonC-TueCWedC
Club Las Hamacas	A	Very low	SatC+SunC+MonC-TueCWedC
Atelier Playa Mujeres	A-	Low	SatC-SunCMonB-TueC+WedC
Impression Isla Mujeres	A-	Very low	SatCSunC+MonBTueB-WedC+
Grand Palladium Costa Mujeres Resort & Spa	A-	Low	SatC-SunCMonB-TueC+WedC

Grades for the next few days from Veabird's beach forecast, updated Oct 3, 18:00 UTC. Higher is better: A+ to F.

Better beach options in March

Elsewhere in Mexico, Huatulco (A), the Yucatán Gulf Coast (A) and Puerto Vallarta (A-) usually grade higher in March. Further afield: Southwest Florida (A-), Maui (A-) and Cuba's Cays (A-). Every destination in March.

Questions

Is March a good time to visit Cancún?: March is a good month for Cancún: a typical day grades B, the 4th best of the 12 months. Expect highs near 84°F, water around 80°F and about a 37% chance of rain on a given day. Sargassum (seaweed) is usually moderate in March. Beaches are typically packed (College & school spring break and Semana Santa / Easter).
How warm is Cancún in March?: Typical highs are about 84°F and the sea is about 80°F. That is warm enough for long swims without a wetsuit.
Is there sargassum in Cancún in March?: In a typical year seaweed is moderate in March. It is usually lightest in January and December and heaviest in July and August. Landings vary a lot by year, wind and currents; Veabird's weekly sargassum report and each beach's page have the current forecast.
Is March hurricane season in Cancún?: No. Storm risk is very low in March.
How crowded is Cancún in March?: Typically packed, around College & school spring break and Semana Santa / Easter. The quietest months are usually September and October.

Plan it

Cancún & Isla Mujeres: this week's forecast, beach by beach
Mexico Beach Report: this week, updated every Monday
Compare dates and beaches on the map

Typical-month numbers from Veabird's year-ahead outlook for the 86 resorts here (median resort): 6 years of ERA5 climate normals, the seasonal pattern of the Atlantic sargassum belt, holiday crowd calendars and historical storm tracks. Any given year can differ; check the 16-day forecast before you go.