Celebrity Cruises · 7 nights

Celebrity Constellation weather: 7-night cruise from San Juan, December 12, 2026

The Celebrity Constellation (Celebrity Cruises) leaves San Juan on December 12, 2026 for a 7-night cruise, with stops in Tortola, Basseterre, Roseau, Castries and St. George's (Grenada). It returns to San Juan on December 19, 2026. Typical afternoon highs along the route run from 81°F to 83°F (27°C to 28°C), and 1 day is at sea, where seas are typically moderate (around 5 ft).

Open the interactive forecast for this sailing

This page shows typical conditions for these dates. The interactive forecast adds a live day-by-day forecast, wave heights and weather alerts as the sailing gets closer.

Day-by-day itinerary and typical weather

Typical conditions for each date (2022–2025 climate record, ECMWF). Sea-day figures are approximate, blended from the ports on either side. Not a forecast.
Day	Port	High / low	Rain days	Wind	Typical seas
Day 1Sat, Dec 12	San Juan Embark	83 / 74°F28 / 24°C	58%	14 mph23 km/h	–
Day 2Sun, Dec 13	Tortola	81 / 78°F27 / 26°C	29%	20 mph32 km/h	–
Day 3Mon, Dec 14	Basseterre	83 / 77°F28 / 25°C	44%	14 mph22 km/h	–
Day 4Tue, Dec 15	Roseau	83 / 74°F28 / 23°C	64%	12 mph20 km/h	–
Day 5Wed, Dec 16	Castries	82 / 76°F28 / 24°C	52%	14 mph23 km/h	–
Day 6Thu, Dec 17	St. George's (Grenada)	83 / 77°F28 / 25°C	69%	13 mph21 km/h	–
Day 7Fri, Dec 18	At sea	82 / 75°F28 / 24°C	62%	10 mph16 km/h	5 ft (1.5 m)Moderate; rougher days up to 6 ft
Day 8Sat, Dec 19	San Juan Disembark	82 / 73°F28 / 23°C	54%	14 mph22 km/h	–

Seas are significant wave height, the average of the highest third of waves, on the Douglas sea state scale. What that means on board.

Ports on this cruise

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