Sand Dollar Sports Dive Center

Cozumel Weather & Water Temperatures

Climate Information for Divers, Snorkelers, and Visitors

View of Cozumel
Graph of Cozumel Water and Weather temperatures

Cozumel Weather at a Glance

Planning a trip to Cozumel for diving or other water sports? Then checking out the Cozumel weather and water temperatures is a must! Cozumel is a tropical island that has great weather year-round. There are three distinct seasons: a breezy, warm season, a rainy season, and a hot season. Cozumel offers year-round tropical warmth, making it a diver’s paradise, regardless of the season. For most water enthusiasts, the water is warm enough to swim, scuba, snorkel, or SNUBA with only a bathing suit or rash guard. For others, they may want to wear at least a shorty wetsuit or 3mm.

Here’s a breakdown of what to expect throughout the year:

Cozumel Weather Temperatures

The island’s air temperature varies slightly more but remains pleasant, fluctuating between 24°C (75°F) in January and February to 29°C (84°F) in the summer months.

Cozumel Water Temperatures

The water temperature in Cozumel stays warm and inviting, ranging from 26°C (79°F) in winter to a balmy 30°C (86°F) in summer. The consistently warm waters make diving, snorkeling, and other aquatic activities enjoyable year-round.

Cozumel Rainy Season

Cozumel experiences a rainy season from May to October, with September and October being the wettest months. However, showers are often brief and followed by sunny skies, so they rarely disrupt plans for outdoor activities or diving. However, there are port closures at times and the authorities do not allow any water activities. This is usually when the winds are high and there are a lot of swells. It’s better to come prepared for this. If this happens, Sand Dollar Sports will give you a refund.


Whether you prefer cooler months or the peak warmth of summer, Cozumel promises excellent conditions for water sports and relaxation. Plan your visit around your temperature preferences, and don’t forget to enjoy the lush beauty that the rainy season brings to the island! ​

Cozumel weather and water temperatures
Picture yourself here enjoying the beautiful weather and water temperatures of Cozumel!

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