7-Night Cruise on Celebrity ConstellationSouthern Caribbean - Weather

Join Celebrity Cruises's Celebrity Constellation for a 7-night voyage on the Southern Caribbean route, setting out from San Juan, Puerto Rico on January 16, 2027. It's a classic Caribbean cruise. Travelers sailing in January can generally expect warm, sunny weather with gentle trade winds. Ports of call include San Juan, Puerto Rico, St Thomas, US Virgin Islands, Basseterre, St. Kitts, with 4 more along the way. The forecasts below break the weather down port by port.

1. Day 1 — Saturday, Jan 16, 2027 — San Juan, Puerto Rico

   San Juan, Puerto Rico is a scheduled port of call on day 1 of the 7-night Southern Caribbean cruise on Celebrity Constellation. Expected weather: partially cloudy with highs near 79°F.

2. Day 2 — Sunday, Jan 17, 2027 — St Thomas, US Virgin Islands

   St Thomas, US Virgin Islands is a scheduled port of call on day 2 of the 7-night Southern Caribbean cruise on Celebrity Constellation. Expected weather: partially cloudy with highs near 77°F.

3. Day 3 — Monday, Jan 18, 2027 — Basseterre, St. Kitts

   Basseterre, St. Kitts is a scheduled port of call on day 3 of the 7-night Southern Caribbean cruise on Celebrity Constellation. Expected weather: partially cloudy with highs near 79°F.

4. Day 4 — Tuesday, Jan 19, 2027 — Roseau, Dominica

   Roseau, Dominica is a scheduled port of call on day 4 of the 7-night Southern Caribbean cruise on Celebrity Constellation. Expected weather: partially cloudy with highs near 76°F.

5. Day 5 — Wednesday, Jan 20, 2027 — Castries, St Lucia

   Castries, St Lucia is a scheduled port of call on day 5 of the 7-night Southern Caribbean cruise on Celebrity Constellation. Expected weather: partially cloudy with highs near 79°F.

6. Day 6 — Thursday, Jan 21, 2027 — Bridgetown, Barbados

   Bridgetown, Barbados is a scheduled port of call on day 6 of the 7-night Southern Caribbean cruise on Celebrity Constellation. Expected weather: partially cloudy with highs near 80°F.

7. Day 7 — Friday, Jan 22, 2027 — At Sea

   Day 7 of 8 is a day at sea aboard Celebrity Constellation, cruising between ports on the Southern Caribbean itinerary.

8. Day 8 — Saturday, Jan 23, 2027 — San Juan, Puerto Rico

   San Juan, Puerto Rico is a scheduled port of call on day 8 of the 7-night Southern Caribbean cruise on Celebrity Constellation. Expected weather: partially cloudy with highs near 79°F.