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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…The Mariner Of The Seas sails a 7-night Western Caribbean Cruise itinerary with Royal Caribbean Cruises, departing New Orleans, Louisiana on December 5, 2026. 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. Use the day-by-day forecast below to plan what to pack for each stop.
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 64°F.
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.
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 81°F.
Ocho Rios, 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 80°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 63°F.
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