
Plan Your Cruise With Free Weather Forecasts
Loading Travel Forecast…
Loading Travel Forecast…Historical averages and packing recommendations for your May visit to Cozumel.
"Heat builds, occasional showers"
Affiliate links — these help keep our site free by earning us a commission at no extra cost to you.
Tours via Viator. Total review count and overall rating based on Viator and Tripadvisor reviews. Booking through our links keeps this site free at no cost to you.
Averaged from the last five years of May readings — a guide to what to expect, not a forecast for a particular sailing.
Cozumel is one of the most visited cruise destinations in the world. The island sits on the Mesoamerican Barrier Reef, the second-largest coral reef system on Earth, which is what keeps snorkelers and divers coming back. Away from the water there is the town of San Miguel, the Mayan ruins at San Gervasio, and white-sand beach clubs.
Cozumel in May is warm and sunny, with average highs around 89°F and lows that rarely dip below 76°F. Expect around 7 rainy days, typically brief afternoon showers rather than all-day rain. Morning excursions are usually the safest bet. Heat builds, occasional showers
Crowds are moderate in May, making it a good balance between availability and weather. Pack reef-safe SPF 50+ sunscreen, a hat, and breathable fabrics. The sun at 89°F is intense, especially near the water.
Eastern & Western Caribbean
MSC Cruises · Aug 15, 2026
Eastern/Western Caribbean Adventurer
Princess Cruises · Aug 15, 2026
Western Caribbean & Bahamas
MSC Cruises · Aug 20, 2026
Western Caribbean
Carnival Cruises · Aug 22, 2026
Western Caribbean Cruise
Royal Caribbean Cruises · Aug 22, 2026
Western Caribbean Cruise From Port Canaveral
Disney Cruises · Aug 22, 2026
The average high temperature in Cozumel during May is 89°F, with a low of 76°F.
Cozumel typically sees 7 days of rain in May. Heat builds, occasional showers
For a May cruise to Cozumel, you should pack lightweight, breathable clothing, swimwear, and sun protection.