
Plan Your Cruise With Free Weather Forecasts
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Loading Travel Forecast…The Celebrity Ascent sails a 10-night Ultimate Southern Caribbean itinerary with Celebrity Cruises, departing Fort Lauderdale, Florida on December 14, 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 Fort Lauderdale, Florida, Philipsburg, St. Maarten, Castries, St Lucia, with 4 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.
Fort Lauderdale, Florida is a scheduled port of call on day 1 of the 10-night Ultimate Southern Caribbean cruise on Celebrity Ascent. Expected weather: partially cloudy with highs near 76°F.
Philipsburg, St. Maarten is a scheduled port of call on day 2 of the 10-night Ultimate Southern Caribbean cruise on Celebrity Ascent. Expected weather: partially cloudy with highs near 80°F.
Castries, St Lucia is a scheduled port of call on day 3 of the 10-night Ultimate Southern Caribbean cruise on Celebrity Ascent. Expected weather: partially cloudy with highs near 80°F.
St Georges, Grenada is a scheduled port of call on day 4 of the 10-night Ultimate Southern Caribbean cruise on Celebrity Ascent. Expected weather: partially cloudy with highs near 79°F.
Bridgetown, Barbados is a scheduled port of call on day 5 of the 10-night Ultimate Southern Caribbean cruise on Celebrity Ascent. Expected weather: partially cloudy with highs near 81°F.
St Johns, Antigua is a scheduled port of call on day 6 of the 10-night Ultimate Southern Caribbean cruise on Celebrity Ascent. Expected weather: partially cloudy with highs near 79°F.
Fort Lauderdale, Florida is a scheduled port of call on day 7 of the 10-night Ultimate Southern Caribbean cruise on Celebrity Ascent. Expected weather: partially cloudy with highs near 75°F.
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Most PopularAll In One Island Tour of St. Martin | St. Maarten
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Most PopularBarbados Turtle and Shipwreck Snorkel Adventure
From $36
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Most PopularParasailing along Fort Lauderdale Beach
From $72
Book Now
Budget PickSea Rocket Ocean Speed Boat Cruise in Fort Lauderdale, FL
From $27
Book NowPowered by Viator/Tripadvisor. Booking through our links may earn us a commission keeping this site free at no cost to you.
Fort Lauderdale, Florida
Most PopularParasailing along Fort Lauderdale Beach
From $72
Book Now
Budget PickSea Rocket Ocean Speed Boat Cruise in Fort Lauderdale, FL
From $27
Book NowPhilipsburg, St. Maarten
Most PopularAll In One Island Tour of St. Martin | St. Maarten
From $70
Book NowCastries, St Lucia
Most PopularPrivate Full Day Charter: St Lucia Boat Tour to Soufriere
From $250
Book NowBridgetown, Barbados
Most PopularBarbados Turtle and Shipwreck Snorkel Adventure
From $36
Book NowBefore you disembark Fort Lauderdale, Florida
Short on time — quick options that fit before you head out.
Most PopularParasailing along Fort Lauderdale Beach
From $72
Book Now
Budget PickSea Rocket Ocean Speed Boat Cruise in Fort Lauderdale, FL
From $27
Book NowPowered by Viator/Tripadvisor. Booking through our links may earn us a commission keeping this site free at no cost to you.