6-Night Cruise on Carnival EncounterGreat Barrier Reef - Weather

Join Carnival Cruises's Carnival Encounter for a 6-night voyage on the Great Barrier Reef route, setting out from Brisbane, Australia on September 5, 2026. The route makes 5 scheduled stops. Travelers sailing in September can generally expect cooler, off-season conditions. Ports of call include Brisbane, Australia, Willis Island, Australia, Cairns, Australia, with 2 more along the way. The forecasts below break the weather down port by port.

1. Day 1 — Saturday, Sep 5, 2026 — Brisbane, Australia

   Brisbane, Australia is a scheduled port of call on day 1 of the 6-night Great Barrier Reef cruise on Carnival Encounter. Expected weather: partially cloudy with highs near 72°F.

2. Day 2 — Monday, Sep 7, 2026 — Willis Island, Australia

   Willis Island, Australia is a scheduled port of call on day 2 of the 6-night Great Barrier Reef cruise on Carnival Encounter. Expected weather: partially cloudy with highs near 76°F.

3. Day 3 — Tuesday, Sep 8, 2026 — Cairns, Australia

   Cairns, Australia is a scheduled port of call on day 3 of the 6-night Great Barrier Reef cruise on Carnival Encounter. Expected weather: partially cloudy with highs near 77°F.

4. Day 4 — Wednesday, Sep 9, 2026 — Airlie Beach, Australia

   Airlie Beach, Australia is a scheduled port of call on day 4 of the 6-night Great Barrier Reef cruise on Carnival Encounter. Expected weather: partially cloudy with highs near 73°F.

5. Day 5 — Friday, Sep 11, 2026 — Brisbane, Australia

   Brisbane, Australia is a scheduled port of call on day 5 of the 6-night Great Barrier Reef cruise on Carnival Encounter. Expected weather: partially cloudy with highs near 72°F.