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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 12, 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 63°F.
Cozumel, Mexico is a scheduled port of call on day 2 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 3 of the 7-night Western Caribbean Cruise cruise on Mariner Of The Seas. Expected weather: partially cloudy with highs near 81°F.
Falmouth, Jamaica 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 84°F.
New Orleans, Louisiana 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 63°F.
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Most PopularNew Orleans Steamboat Natchez Jazz Cruise
From $37
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Budget PickSt. Louis Cemetery No. 1 Official Walking Tour
From $25
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Most PopularCozumel Snorkeling Tour: Palancar, Columbia and El Cielo Reefs
From $62
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Budget PickCozumel ClearBoat Adventure with Snorkeling
From $43
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Most PopularPenang City & Temple Tour With Penang Hill(Fast Lane)
From $88
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Budget PickPenang: Flexible Half-Day Escapes
From $60
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Most PopularTriple Action pack Combo (Blue Hole, Horse back riding and river tubing)
From $157
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Budget PickBamboo Rafting & Limestone Massage - Montego Bay Jamaica
From $20
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Most PopularNew Orleans Steamboat Natchez Jazz Cruise
From $37
Book NowBudget PickSt. Louis Cemetery No. 1 Official Walking Tour
From $25
Book NowPowered by Viator/Tripadvisor. Booking through our links may earn us a commission keeping this site free at no cost to you.
New Orleans, Louisiana
Most PopularNew Orleans Steamboat Natchez Jazz Cruise
From $37
Book NowBudget PickSt. Louis Cemetery No. 1 Official Walking Tour
From $25
Book NowCozumel, Mexico
Most PopularCozumel Snorkeling Tour: Palancar, Columbia and El Cielo Reefs
From $62
Book NowBudget PickCozumel ClearBoat Adventure with Snorkeling
From $43
Book NowGeorge Town, Grand Cayman
Most PopularPenang City & Temple Tour With Penang Hill(Fast Lane)
From $88
Book NowBudget PickPenang: Flexible Half-Day Escapes
From $60
Book NowFalmouth, Jamaica
Most PopularTriple Action pack Combo (Blue Hole, Horse back riding and river tubing)
From $157
Book NowBudget PickBamboo Rafting & Limestone Massage - Montego Bay Jamaica
From $20
Book NowBefore you disembark New Orleans, Louisiana
Short on time — quick options that fit before you head out.
Most PopularNew Orleans Steamboat Natchez Jazz Cruise
From $37
Book NowBudget PickSt. Louis Cemetery No. 1 Official Walking Tour
From $25
Book NowPowered by Viator/Tripadvisor. Booking through our links may earn us a commission keeping this site free at no cost to you.