Your Cruise, Your Weather
Plan Your Cruise With Free Weather Forecasts
Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Departing San Juan, Puerto Rico on September 18, 2027, the Royal Caribbean Cruises ship Grandeur Of The Seas runs this 7-night Southern Caribbean Cruise sailing. It's a classic Caribbean cruise. Travelers sailing in September can generally expect warm, sunny weather with gentle trade winds. Ports of call include San Juan, Puerto Rico, St Thomas, US Virgin Islands, St Croix, US Virgin Islands, with 4 more along the way. Scroll the daily outlook below to pack smart for every port of call.
San Juan, Puerto Rico is a scheduled port of call on day 1 of the 7-night Southern Caribbean Cruise cruise on Grandeur Of The Seas. Expected weather: partially cloudy with highs near 84°F.
St Thomas, US Virgin Islands is a scheduled port of call on day 2 of the 7-night Southern Caribbean Cruise cruise on Grandeur Of The Seas. Expected weather: partially cloudy with highs near 82°F.
St Croix, US Virgin Islands is a scheduled port of call on day 3 of the 7-night Southern Caribbean Cruise cruise on Grandeur Of The Seas. Expected weather: partially cloudy with highs near 83°F.
Philipsburg, St. Maarten is a scheduled port of call on day 4 of the 7-night Southern Caribbean Cruise cruise on Grandeur Of The Seas. Expected weather: partially cloudy with highs near 83°F.
Castries, St Lucia is a scheduled port of call on day 5 of the 7-night Southern Caribbean Cruise cruise on Grandeur Of The Seas. Expected weather: partially cloudy with highs near 83°F.
Bridgetown, Barbados is a scheduled port of call on day 6 of the 7-night Southern Caribbean Cruise cruise on Grandeur Of The Seas. Expected weather: partially cloudy with highs near 83°F.
San Juan, Puerto Rico is a scheduled port of call on day 7 of the 7-night Southern Caribbean Cruise cruise on Grandeur Of The Seas. Expected weather: partially cloudy with highs near 84°F.
Compare rates and find your next sailing.