Grandeur Of The Seas — 7-Night Southern Caribbean Cruise Cruise Weather

Departing San Juan, Puerto Rico on September 4, 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.

1. Day 1 — Saturday, Sep 4, 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 cruise on Grandeur Of The Seas.

2. Day 2 — Sunday, Sep 5, 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 cruise on Grandeur Of The Seas.

3. Day 3 — Monday, Sep 6, 2027 — St Croix, US Virgin Islands

   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.

4. Day 4 — Tuesday, Sep 7, 2027 — Philipsburg, St. Maarten

   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.

5. Day 5 — Wednesday, Sep 8, 2027 — Castries, St Lucia

   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.

6. Day 6 — Thursday, Sep 9, 2027 — Bridgetown, Barbados

   Bridgetown, Barbados is a scheduled port of call on day 6 of the 7-night Southern Caribbean Cruise cruise on Grandeur Of The Seas.

7. Day 7 — Saturday, Sep 11, 2027 — San Juan, Puerto Rico

   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.