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Cozumel Weather in July: Rain, Temperatures

Cozumel weather in July
Average high temperature and rainfall in Cozumel during July. © Scott S. Bateman

Hot and somewhat rainy is the simplest way to describe Cozumel weather in July.

The largest island of Mexico, which lies just south of Cancun, is a hugely popular port for western Caribbean cruises during the dry season. The dry season goes from January through April with an average rainfall of about two inches per month.

March and April are the two best months for weather during the year. Rains start to come down harder in May and climb from there.

Cozumel Temperatures in July

Cozumel is one of the hottest destinations in the Caribbean throughout most of the year. July is no different.

The average high temperature in Cozumel during July is 91 degrees Fahrenheit or about 33 Celsius, according to Servicio Meteorológico Nacional, Mexico’s national meteorological service. The island’s average high exceeds 90 Fahrenheit from April through August. It is often quite humid during the summer thanks in part to more rain.

The average low temperature in July is 74 degrees Fahrenheit or 23 Celsius. These nighttime temperatures are warm enough to keep seawater comfortable for swimming throughout the day.

The same can’t be said for the January through April dry season. Nighttime temperatures often drop into the 60s Fahrenheit or high teens Celsius. They may make seawater too chilly for swimming during part of the day. Trade winds may make swimming even more uncomfortable because of the wind chill factor.

So the dry season is a good time to visit for warm air temperatures. July is a good time for warm water temperatures.

Rainfall in July

The average rainfall in July is just under five inches, which is quite a bit higher than the two inch average during the dry season. But it’s not as bad as some other destinations in July including the Bahamas, Grand Cayman, Dominica, Martinique and St. Lucia, according to historical data from Caribbean meteorological services.

Rainfall is higher at this time of the year because the Caribbean hurricane season begins in June and goes through November. By comparison, Cozumel’s average of nearly five inches in July is not nearly as bad as the 10 inches it averages in September and October.



This video explains Caribbean weather in July and which islands are the best and worst to visit for weather.

Full-Screen Version | YouTube Caribbean Channel
It rains on average 12 days during July compared to four days each in March and April, according to Servicio Meteorológico Nacional. October has the highest of the year and averages 16 days.

Anyone thinking about visiting Cozumel in July should keep in mind that the risk of rain that month is neither the best of the year nor the worst.

Cozumel weather in: January, February, March, April, May, June, July, August, September, October, November, December

Scott S. Bateman is a professional journalist who has traveled widely throughout the Caribbean and the Americas. He is the author of four books about cruising in the Caribbean, Alaska and Mexican Riviera.
June 13, 2024

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