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Departing New Orleans, Louisiana on December 26, 2026, the Royal Caribbean Cruises ship Mariner Of The Seas runs this 7-night Western Caribbean Cruise sailing. It's a classic Caribbean cruise. Travelers sailing in December can generally expect warm, sunny weather with gentle trade winds. Ports of call include New Orleans, Louisiana, Cozumel, Mexico, George Town, Grand Cayman, with 2 more along the way. Scroll the daily outlook below to pack smart for every port of call.
New Orleans, Louisiana is a scheduled port of call on day 1 of the 7-night Western Caribbean Cruise cruise on Mariner Of The Seas. Expected weather: partially cloudy with highs near 63°F. New Orleans weather in December
Day 2 of 8 is a day at sea aboard Mariner Of The Seas, cruising between ports on the Western Caribbean Cruise itinerary.
Cozumel, Mexico is a scheduled port of call on day 3 of the 7-night Western Caribbean Cruise cruise on Mariner Of The Seas. Expected weather: partially cloudy with highs near 80°F. Cozumel weather in December
George Town, Grand Cayman is a scheduled port of call on day 4 of the 7-night Western Caribbean Cruise cruise on Mariner Of The Seas. Expected weather: partially cloudy with highs near 80°F. Grand Cayman weather in December
Falmouth, Jamaica is a scheduled port of call on day 5 of the 7-night Western Caribbean Cruise cruise on Mariner Of The Seas. Expected weather: partially cloudy with highs near 84°F.
Day 6 of 8 is a day at sea aboard Mariner Of The Seas, cruising between ports on the Western Caribbean Cruise itinerary.
Day 7 of 8 is a day at sea aboard Mariner Of The Seas, cruising between ports on the Western Caribbean Cruise itinerary.
New Orleans, Louisiana is a scheduled port of call on day 8 of the 7-night Western Caribbean Cruise cruise on Mariner Of The Seas. Expected weather: partially cloudy with highs near 61°F. New Orleans weather in January
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