How warm is Cozumel in December?

Typical highs are about 81°F and the sea is about 82°F. That is warm enough for long swims without a wetsuit.

Is there sargassum in Cozumel in December?

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

Is December hurricane season in Cozumel?

No. Storm risk is very low in December.

How crowded is Cozumel in December?

Typically very busy, around Christmas & holiday break. The quietest months are usually September and October.

Cozumel in December

December is a good month for Cozumel: a typical day grades B, the 6th best of the 12 months. Expect highs near 81°F, water around 82°F and about a 46% chance of rain on a given day. Sargassum (seaweed) is usually high in December. Beaches are typically very busy (Christmas & holiday break).

Typical dayB6th of 12 months

Highs / water81°FSea 82°F

Rain chance46%on a given day

SeaweedHightypical year

CrowdsVery busyChristmas & holiday break

Storm riskVery lowoutside storm season

Cozumel month by month

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

November: B · December: B · January: B+. The best months are usually January, February and March, and the weakest are August and September.

Best beaches in Cozumel in December

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

Beach	Typical Dec	Seaweed	This week
Secrets Aura Cozumel	B	High	SatD+SunC+MonBTueCWedC-
Presidente InterContinental Cozumel	B	High	SatD+SunC+MonBTueCWedC-
Iberostar Cozumel	B	High	SatDSunC-MonCTueCWedC-
Allegro Cozumel	B	High	SatDSunC-MonCTueCWedC-
Hotel B Unique	B	High	SatD+SunC+MonBTueCWedC-
Stingray Villa	B	High	SatD+SunC+MonBTueCWedC-
Hotel Barracuda	B	High	SatD+SunC+MonBTueCWedC-
Villablanca Garden Beach Hotel	B	High	SatD+SunC+MonBTueCWedC-

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 December

Elsewhere in Mexico, Huatulco (A), Puerto Vallarta (A) and Los Cabos (A) usually grade higher in December. Further afield: the Big Island (A-), Maui (A-) and Oʻahu (A-). Every destination in December.

Questions

Is December a good time to visit Cozumel?: December is a good month for Cozumel: a typical day grades B, the 6th best of the 12 months. Expect highs near 81°F, water around 82°F and about a 46% chance of rain on a given day. Sargassum (seaweed) is usually high in December. Beaches are typically very busy (Christmas & holiday break).
How warm is Cozumel in December?: Typical highs are about 81°F and the sea is about 82°F. That is warm enough for long swims without a wetsuit.
Is there sargassum in Cozumel in December?: In a typical year seaweed is high in December. It is usually lightest in January and June and heaviest in August and October. Landings vary a lot by year, wind and currents; Veabird's weekly sargassum report and each beach's page have the current forecast.
Is December hurricane season in Cozumel?: No. Storm risk is very low in December.
How crowded is Cozumel in December?: Typically very busy, around Christmas & holiday break. The quietest months are usually September and October.

Plan it

Cozumel: 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 14 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.