How warm is Cancún in May?

Typical highs are about 88°F and the sea is about 82°F. That is warm enough for long swims without a wetsuit.

Is there sargassum in Cancún in May?

In a typical year seaweed is high in May. 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 May hurricane season in Cancún?

No. Storm risk is very low in May.

How crowded is Cancún in May?

Typically busy, around Memorial Day weekend. The quietest months are usually September and October.

Cancún in May

May is one of the best months to visit Cancún: a typical day grades B, the 2nd best of the 12 months. Expect highs near 88°F, water around 82°F and about a 43% chance of rain on a given day. Sargassum (seaweed) is usually high in May. Beaches are typically busy (Memorial Day weekend).

Typical dayB2nd of 12 months

Highs / water88°FSea 82°F

Rain chance43%on a given day

SeaweedHightypical year

CrowdsBusyMemorial Day weekend

Storm riskVery lowoutside storm season

Cancún month by month

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

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

Best beaches in Cancún in May

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

Beach	Typical May	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
Bahia Tolok	A-	Low	SatC+SunB+MonB+TueB+WedA-
Selina Hotel Cancun Lagoon Zona Hotelera	A-	Low	SatCSunB-MonBTueB+WedB+
Hotel Villa Rolandi	A-	Low	SatC+SunB+MonB+TueB+WedA-

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 May

Elsewhere in Mexico, Puerto Vallarta (A), Los Cabos (A) and Huatulco (A) usually grade higher in May. Further afield: Maui (A), Oʻahu (A) and Southwest Florida (A). Every destination in May.

Questions

Is May a good time to visit Cancún?: May is one of the best months to visit Cancún: a typical day grades B, the 2nd best of the 12 months. Expect highs near 88°F, water around 82°F and about a 43% chance of rain on a given day. Sargassum (seaweed) is usually high in May. Beaches are typically busy (Memorial Day weekend).
How warm is Cancún in May?: Typical highs are about 88°F and the sea is about 82°F. That is warm enough for long swims without a wetsuit.
Is there sargassum in Cancún in May?: In a typical year seaweed is high in May. 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 May hurricane season in Cancún?: No. Storm risk is very low in May.
How crowded is Cancún in May?: Typically busy, around Memorial Day weekend. 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.