7-Night Cruise on Norwegian LunaCaribbean Round-trip Miami: Great Stirrup Cay & Dominican Republic - Weather

Join Norwegian Cruise Line (NCL)'s Norwegian Luna for a 7-night voyage on the Caribbean Round-trip Miami: Great Stirrup Cay & Dominican Republic route, setting out from Miami, Florida on July 18, 2026. It's a classic Caribbean cruise. Travelers sailing in July can generally expect warm, sunny weather with gentle trade winds. Ports of call include Miami, Florida, Puerto Plata/Amber Cove, Dominican Republic, St Thomas, US Virgin Islands, with 3 more along the way. The forecasts below break the weather down port by port.

1. Day 1 — Saturday, Jul 18, 2026 — Miami, Florida

   Miami, Florida is a scheduled port of call on day 1 of the 7-night Caribbean Round-trip Miami: Great Stirrup Cay & Dominican Republic cruise on Norwegian Luna. Expected weather: partially cloudy with highs near 90°F.

2. Day 2 — Monday, Jul 20, 2026 — Puerto Plata/Amber Cove, Dominican Republic

   Puerto Plata/Amber Cove, Dominican Republic is a scheduled port of call on day 2 of the 7-night Caribbean Round-trip Miami: Great Stirrup Cay & Dominican Republic cruise on Norwegian Luna. Expected weather: partially cloudy with highs near 81°F.

3. Day 3 — Tuesday, Jul 21, 2026 — St Thomas, US Virgin Islands

   St Thomas, US Virgin Islands is a scheduled port of call on day 3 of the 7-night Caribbean Round-trip Miami: Great Stirrup Cay & Dominican Republic cruise on Norwegian Luna. Expected weather: clear with highs near 82°F.

4. Day 4 — Wednesday, Jul 22, 2026 — Tortola, British Virgin Islands

   Tortola, British Virgin Islands is a scheduled port of call on day 4 of the 7-night Caribbean Round-trip Miami: Great Stirrup Cay & Dominican Republic cruise on Norwegian Luna. Expected weather: partially cloudy with highs near 82°F.

5. Day 5 — Friday, Jul 24, 2026 — Great Stirrup Cay, Bahamas

   Great Stirrup Cay, Bahamas is a scheduled port of call on day 5 of the 7-night Caribbean Round-trip Miami: Great Stirrup Cay & Dominican Republic cruise on Norwegian Luna. Expected weather: rain with highs near 84°F.

6. Day 6 — Saturday, Jul 25, 2026 — Miami, Florida

   Miami, Florida is a scheduled port of call on day 6 of the 7-night Caribbean Round-trip Miami: Great Stirrup Cay & Dominican Republic cruise on Norwegian Luna. Expected weather: rain, overcast with highs near 87°F.