Cozumel’s climate is one of the reasons why Mexico’s largest island is so popular. But not every month is the best time to go due to the rain in the fall and the cool temperatures in the winter.
In addition to good weather most of the year, Cozumel’s popularity is due in part to the beautiful beaches and being a major stop on most Western Caribbean cruises, which take advantage of the destination’s well-known emphasis on diving and snorkelling. snorkel.
Average temperatures
Cozumel’s climate has an average monthly high temperature of nearly 88 degrees Fahrenheit, one of the warmest in the Caribbean region, and an average monthly low temperature of just under 72 degrees, one of the coldest in the region, according to the World Meteorological Organization.
Average high temperatures peak at about 90 degrees from April through September, which is an extended period of warm temperatures by Caribbean standards. Average highs drop to the low 80s during the winter months of December through February.
Average low temperatures hover in the mid-70s from May through October. But they are in the high 60s from December to March. Visitors will find cool nights and cool swimming in the ocean.
Average rain
Cozumel receives an average of about 4.9 inches of rain per month. It peaks at 9.5 inches each in September and October during the peak of the Caribbean hurricane season, while bottoming out at less than 2 inches in March and April.
The average number of rainy days on the island reaches 15 in September and October and decreases to 4 inches or less in March and April.
Weather by season
Cozumel’s weather from December to February has an average high of minus 80 degrees, an average low of 60 degrees and eight days of rain.
Spring has average highs in the upper 80s, average lows in the 70s, and five rainy days.
Summer has highs above the 90s, lows in the mid-70s, and nine days of rain.
Fall has highs in the upper 80s, lows in the 70s, and 14 rainy days.
Best and worst months
The most popular months to visit are February and March, with another increase in visitors from June to August, according to the Caribbean Tourism Organization. Cruise ship visitors will find that the moderate heat in February and March is more comfortable than the 90-degree weather the island sees beginning in April.
Less popular months are September, October, and November due to heavy rains, and again in January due to cool weather.