7-Night Cruise on Norwegian PrimaCaribbean Round-Trip San Juan: Barbados & St. Thomas - Weather

The Norwegian Prima sails a 7-night Caribbean Round-Trip San Juan: Barbados & St. Thomas itinerary with Norwegian Cruise Line (NCL), departing San Juan, Puerto Rico on December 18, 2027. 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, Basseterre, St. Kitts, with 5 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Saturday, Dec 18, 2027 — San Juan, Puerto Rico

   San Juan, Puerto Rico is a scheduled port of call on day 1 of the 7-night Caribbean Round-Trip San Juan: Barbados & St. Thomas cruise on Norwegian Prima. Expected weather: partially cloudy with highs near 80°F.

2. Day 2 — Sunday, Dec 19, 2027 — Tortola, British Virgin Islands

   Tortola, British Virgin Islands is a scheduled port of call on day 2 of the 7-night Caribbean Round-Trip San Juan: Barbados & St. Thomas cruise on Norwegian Prima. Expected weather: partially cloudy with highs near 79°F.

3. Day 3 — Monday, Dec 20, 2027 — Basseterre, St. Kitts

   Basseterre, St. Kitts is a scheduled port of call on day 3 of the 7-night Caribbean Round-Trip San Juan: Barbados & St. Thomas cruise on Norwegian Prima. Expected weather: partially cloudy with highs near 80°F.

4. Day 4 — Tuesday, Dec 21, 2027 — Bridgetown, Barbados

   Bridgetown, Barbados is a scheduled port of call on day 4 of the 7-night Caribbean Round-Trip San Juan: Barbados & St. Thomas cruise on Norwegian Prima. Expected weather: partially cloudy with highs near 81°F.

5. Day 5 — Wednesday, Dec 22, 2027 — Castries, St Lucia

   Castries, St Lucia is a scheduled port of call on day 5 of the 7-night Caribbean Round-Trip San Juan: Barbados & St. Thomas cruise on Norwegian Prima. Expected weather: partially cloudy with highs near 80°F.

6. Day 6 — Thursday, Dec 23, 2027 — Philipsburg, St. Maarten

   Philipsburg, St. Maarten is a scheduled port of call on day 6 of the 7-night Caribbean Round-Trip San Juan: Barbados & St. Thomas cruise on Norwegian Prima. Expected weather: partially cloudy with highs near 79°F.

7. Day 7 — Friday, Dec 24, 2027 — St Thomas, US Virgin Islands

   St Thomas, US Virgin Islands is a scheduled port of call on day 7 of the 7-night Caribbean Round-Trip San Juan: Barbados & St. Thomas cruise on Norwegian Prima. Expected weather: partially cloudy with highs near 78°F.

8. Day 8 — Saturday, Dec 25, 2027 — San Juan, Puerto Rico

   San Juan, Puerto Rico is a scheduled port of call on day 8 of the 7-night Caribbean Round-Trip San Juan: Barbados & St. Thomas cruise on Norwegian Prima. Expected weather: partially cloudy with highs near 80°F.