MyCruiseForecast

Royal Caribbean · 7 nights

Mariner of the Seas weather: 7-night cruise from New Orleans, December 5, 2026

The Mariner of the Seas (Royal Caribbean) leaves New Orleans on December 5, 2026 for a 7-night cruise, with stops in Cozumel, George Town and Ocho Rios. It returns to New Orleans on December 12, 2026. Typical afternoon highs along the route run from 67°F to 83°F (20°C to 28°C), and 3 days are at sea, where seas are typically slight (around 4 ft).

Open the interactive forecast for this sailing

This page shows typical conditions for these dates. The interactive forecast adds a live day-by-day forecast, wave heights and weather alerts as the sailing gets closer.

Day-by-day itinerary and typical weather

Typical conditions for each date (2022–2025 climate record, ECMWF). Sea-day figures are approximate, blended from the ports on either side. Not a forecast.
DayPortHigh / lowRain daysWindTypical seas
Day 1Sat, Dec 5New Orleans Embark67 / 54°F20 / 12°C20%11 mph17 km/h–
Day 2Sun, Dec 6At sea75 / 65°F24 / 18°C34%9 mph15 km/h3 ft (1.0 m)Slight; rougher days up to 6 ft
Day 3Mon, Dec 7Cozumel82 / 76°F28 / 24°C47%14 mph22 km/h–
Day 4Tue, Dec 8George Town83 / 78°F28 / 26°C44%20 mph32 km/h–
Day 5Wed, Dec 9Ocho Rios82 / 74°F28 / 23°C84%11 mph17 km/h–
Day 6Thu, Dec 10At sea75 / 64°F24 / 18°C52%8 mph13 km/h4 ft (1.2 m)Slight; rougher days up to 7 ft
Day 7Fri, Dec 11At sea75 / 64°F24 / 18°C52%8 mph13 km/h4 ft (1.2 m)Slight; rougher days up to 7 ft
Day 8Sat, Dec 12New Orleans Disembark67 / 54°F20 / 12°C20%11 mph17 km/h–

Seas are significant wave height, the average of the highest third of waves, on the Douglas sea state scale. What that means on board.

Ports on this cruise

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