Royal Caribbean · 5 nights
Mariner of the Seas weather: 5-night cruise from Galveston, October 12, 2026
The Mariner of the Seas (Royal Caribbean) leaves Galveston on October 12, 2026 for a 5-night cruise, with stops in Costa Maya and Cozumel. It returns to Galveston on October 17, 2026. Typical afternoon highs along the route run from 76°F to 87°F (24°C to 31°C), and 2 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 1Mon, Oct 12 | Galveston Embark | 81 / 74°F27 / 24°C | 20% | 17 mph27 km/h | – |
| Day 2Tue, Oct 13 | At sea | 84 / 76°F29 / 25°C | 40% | 10 mph17 km/h | 2 ft (0.7 m)Slight; rougher days up to 4 ft |
| Day 3Wed, Oct 14 | Costa Maya | 87 / 78°F31 / 26°C | 60% | 11 mph17 km/h | – |
| Day 4Thu, Oct 15 | Cozumel | 87 / 78°F31 / 26°C | 67% | 11 mph17 km/h | – |
| Day 5Fri, Oct 16 | At sea | 80 / 73°F27 / 23°C | 40% | 12 mph19 km/h | 3 ft (0.8 m)Slight; rougher days up to 4 ft |
| Day 6Sat, Oct 17 | Galveston Disembark | 76 / 69°F24 / 21°C | 27% | 19 mph31 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
More Mariner of the Seas sailings
- October 17, 2026: 5 nights from Galveston
- October 22, 2026: 4 nights from Galveston
- October 26, 2026: 4 nights from Galveston
- November 1, 2026: 6 nights from New Orleans
- November 7, 2026: 7 nights from New Orleans
- November 14, 2026: 7 nights from New Orleans
All Mariner of the Seas sailings · All Royal Caribbean ships