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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Join Marella Cruises's Marella Discovery for a 7-night voyage on the Tropical Isles route, setting out from La Romana, Dominican Republic on December 8, 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 La Romana, Dominican Republic, San Juan, Puerto Rico, St Thomas, US Virgin Islands, with 4 more along the way. The forecasts below break the weather down port by port.
La Romana, Dominican Republic is a scheduled port of call on day 1 of the 7-night Tropical Isles cruise on Marella Discovery. Expected weather: partially cloudy with highs near 83°F.
San Juan, Puerto Rico is a scheduled port of call on day 2 of the 7-night Tropical Isles cruise on Marella Discovery. Expected weather: partially cloudy with highs near 80°F.
St Thomas, US Virgin Islands is a scheduled port of call on day 3 of the 7-night Tropical Isles cruise on Marella Discovery. Expected weather: partially cloudy with highs near 79°F.
St Croix, US Virgin Islands is a scheduled port of call on day 4 of the 7-night Tropical Isles cruise on Marella Discovery. Expected weather: partially cloudy with highs near 80°F.
Ponce, Puerto Rico is a scheduled port of call on day 5 of the 7-night Tropical Isles cruise on Marella Discovery. Expected weather: partially cloudy with highs near 81°F.
Catalina Island, Dominican Republic is a scheduled port of call on day 6 of the 7-night Tropical Isles cruise on Marella Discovery. Expected weather: partially cloudy with highs near 80°F.
La Romana, Dominican Republic is a scheduled port of call on day 7 of the 7-night Tropical Isles cruise on Marella Discovery. Expected weather: partially cloudy with highs near 83°F.
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