Your Cruise, Your Weather
Plan Your Cruise With Free Weather Forecasts
Loading Travel Forecast…Loading Travel Forecast…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.
Day 2 of 11 is a day at sea aboard Celebrity Ascent, cruising between ports on the Ultimate Southern Caribbean itinerary.
Day 3 of 11 is a day at sea aboard Celebrity Ascent, cruising between ports on the Ultimate Southern Caribbean itinerary.
Philipsburg, St. Maarten 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 80°F.
Castries, St Lucia 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 80°F.
St Georges, Grenada 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.
Bridgetown, Barbados 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 81°F.
St Johns, Antigua is a scheduled port of call on day 8 of the 10-night Ultimate Southern Caribbean cruise on Celebrity Ascent. Expected weather: partially cloudy with highs near 79°F.
Day 9 of 11 is a day at sea aboard Celebrity Ascent, cruising between ports on the Ultimate Southern Caribbean itinerary.
Day 10 of 11 is a day at sea aboard Celebrity Ascent, cruising between ports on the Ultimate Southern Caribbean itinerary.
Fort Lauderdale, Florida is a scheduled port of call on day 11 of the 10-night Ultimate Southern Caribbean cruise on Celebrity Ascent. Expected weather: partially cloudy with highs near 75°F.
Planning another sailing? Browse our Celebrity Cruises cruise guide for practical tips and ship ideas.
Already thinking about your next sailing? See what CruiseDirect has.