Royal Caribbean · 7 nights
Mariner of the Seas weather: 7-night cruise from New Orleans, December 19, 2026
The Mariner of the Seas (Royal Caribbean) leaves New Orleans on December 19, 2026 for a 7-night cruise, with stops in Cozumel, George Town and Montego Bay. It returns to New Orleans on December 26, 2026. Typical afternoon highs along the route run from 62°F to 83°F (17°C to 29°C), and 3 days are at sea, where seas are typically slight (around 3 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
| Day | Port | High / low | Rain days | Wind | Typical seas |
|---|---|---|---|---|---|
| Day 1Sat, Dec 19 | New Orleans Embark | 62 / 49°F17 / 10°C | 27% | 11 mph18 km/h | – |
| Day 2Sun, Dec 20 | At sea | 71 / 61°F22 / 16°C | 43% | 8 mph14 km/h | 3 ft (0.9 m)Slight; rougher days up to 5 ft |
| Day 3Mon, Dec 21 | Cozumel | 80 / 72°F27 / 22°C | 58% | 11 mph18 km/h | – |
| Day 4Tue, Dec 22 | George Town | 82 / 77°F28 / 25°C | 52% | 16 mph26 km/h | – |
| Day 5Wed, Dec 23 | Montego Bay | 83 / 73°F29 / 23°C | 40% | 11 mph18 km/h | – |
| Day 6Thu, Dec 24 | At sea | 73 / 61°F23 / 16°C | 34% | 8 mph14 km/h | 3 ft (0.9 m)Slight; rougher days up to 6 ft |
| Day 7Fri, Dec 25 | At sea | 73 / 61°F23 / 16°C | 34% | 8 mph14 km/h | 3 ft (0.9 m)Slight; rougher days up to 6 ft |
| Day 8Sat, Dec 26 | New Orleans Disembark | 62 / 49°F17 / 10°C | 27% | 11 mph18 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
- CozumelWeather by month
- George TownWeather by month
- Montego BayWeather by month
- New OrleansWeather by month
More Mariner of the Seas sailings
- December 26, 2026: 7 nights from New Orleans
All Mariner of the Seas sailings · All Royal Caribbean ships