MyCruiseForecast

Royal Caribbean · 7 nights

Brilliance of the Seas weather: 7-night cruise from Fort Lauderdale, December 21, 2026

The Brilliance of the Seas (Royal Caribbean) leaves Fort Lauderdale on December 21, 2026 for a 7-night cruise, with stops in Nassau, Perfect Day at CocoCay and Grand Turk. It returns to Fort Lauderdale on December 28, 2026. Typical afternoon highs along the route run from 75°F to 80°F (24°C to 26°C), and 3 days are at sea, where seas are typically slight (around 4 ft).

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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 1Mon, Dec 21Fort Lauderdale Embark75 / 64°F24 / 18°C50%12 mph19 km/h–
Day 2Tue, Dec 22Nassau77 / 71°F25 / 22°C44%16 mph26 km/h–
Day 3Wed, Dec 23Perfect Day at CocoCay76 / 73°F24 / 23°C38%19 mph31 km/h–
Day 4Thu, Dec 24At sea78 / 75°F25 / 24°C38%15 mph24 km/h4 ft (1.2 m)Slight; rougher days up to 6 ft
Day 5Fri, Dec 25Grand Turk80 / 77°F26 / 25°C38%21 mph34 km/h–
Day 6Sat, Dec 26At sea77 / 71°F25 / 21°C44%12 mph20 km/h4 ft (1.2 m)Slight; rougher days up to 6 ft
Day 7Sun, Dec 27At sea77 / 71°F25 / 21°C44%12 mph20 km/h4 ft (1.2 m)Slight; rougher days up to 6 ft
Day 8Mon, Dec 28Fort Lauderdale Disembark75 / 64°F24 / 18°C50%12 mph19 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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