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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Join Royal Caribbean Cruises's Brilliance Of The Seas for a 7-night voyage on the Southern Caribbean Cruise route, setting out from San Juan, Puerto Rico on December 20, 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 San Juan, Puerto Rico, Tortola, British Virgin Islands, St Johns, Antigua, with 4 more along the way. The forecasts below break the weather down port by port.
San Juan, Puerto Rico is a scheduled port of call on day 1 of the 7-night Southern Caribbean Cruise cruise on Brilliance Of The Seas. Expected weather: partially cloudy with highs near 80°F.
Tortola, British Virgin Islands is a scheduled port of call on day 2 of the 7-night Southern Caribbean Cruise cruise on Brilliance Of The Seas. Expected weather: partially cloudy with highs near 79°F.
St Johns, Antigua is a scheduled port of call on day 3 of the 7-night Southern Caribbean Cruise cruise on Brilliance Of The Seas. Expected weather: partially cloudy with highs near 79°F.
Roseau, Dominica is a scheduled port of call on day 4 of the 7-night Southern Caribbean Cruise cruise on Brilliance Of The Seas. Expected weather: partially cloudy with highs near 77°F.
St Croix, US Virgin Islands is a scheduled port of call on day 5 of the 7-night Southern Caribbean Cruise cruise on Brilliance Of The Seas. Expected weather: partially cloudy with highs near 79°F.
Basseterre, St. Kitts is a scheduled port of call on day 6 of the 7-night Southern Caribbean Cruise cruise on Brilliance Of The Seas. Expected weather: partially cloudy with highs near 80°F.
San Juan, Puerto Rico is a scheduled port of call on day 7 of the 7-night Southern Caribbean Cruise cruise on Brilliance Of The Seas. Expected weather: partially cloudy with highs near 79°F.
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