Undine Coral Cay

Port Douglas · outer reef

-16.1200, 145.8800

excellent

96

Calculated score for Thursday 29 October

Wind
9.2 kn average
Waves
0.7 m average
UV index
5
Water temperature
27.5 °C
Current
0.1 kn

Hourly conditions

Undine Coral Cay · 6 AM–6 PM · Australia/Brisbane

6 AM

8.8 kn 0.7 m 0.22 kn
good
81

7 AM

9.6 kn 0.7 m 0.22 kn
good
82

8 AM

10.3 kn 0.7 m 0.22 kn
good
84

9 AM

10.5 kn 0.7 m 0.11 kn
excellent
95

Preferred daylight · 10 AM–2 PM

10 AM

9.9 kn 0.7 m 0.11 kn
Best forecast
excellent
100

11 AM

8.4 kn 0.7 m 0.11 kn
excellent
96

12 PM

8.3 kn 0.7 m 0.16 kn
excellent
100

1 PM

8.7 kn 0.7 m 0.16 kn
excellent
100

2 PM

8 kn 0.7 m 0.16 kn
excellent
100

3 PM

9 kn 0.6 m 0.16 kn
excellent
100

4 PM

9 kn 0.6 m 0.16 kn
excellent
98

5 PM

9 kn 0.6 m 0.16 kn
excellent
89

6 PM

9.6 kn 0.6 m 0.00 kn
good
81

16.12°S, 145.88°E · Cached forecast snapshot

Open-Meteo forecast integration (Forecast model) · Open-Meteo marine integration (Forecast model) · Internal deterministic scoring (Calculated) · Retrieved 29 Oct 2026, 3:13 pm Australia/Brisbane

Record transparency

Additional operator, coral, conservation, access, and advisory records for Undine Coral Cay are withheld until their sources and dates are validated.

View forecast availability for all 37 reef sites

Tours and experiences

Tours for a Port Douglas reef trip

These are regional Port Douglas alternatives. The operator chooses the day’s exact reef stops.

Outer-reef pontoon day

Regional option

Quicksilver Great Barrier Reef Snorkel Cruise from Port Douglas

A regional Port Douglas trip to the Quicksilver pontoon at Agincourt Reef.

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Three Agincourt reef sites

Regional option

Silversonic 3 Outer Barrier Reef Sites in 1 Day from Port Douglas

A regional Port Douglas cruise visiting three operator-selected Agincourt sites.

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Calypso outer-reef cruise

Regional option

Calypso Outer Great Barrier Reef Cruise from Port Douglas

A regional outer Great Barrier Reef cruise from Port Douglas.

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Sail and snorkel Mackay Cay

Regional option

Outer Reef Mackay Cay Sail & Snorkel Adventure from Port Douglas

A regional sailing and snorkeling trip from Port Douglas to Mackay Cay.

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Reef or rainforest scenic flight

Regional option

Great Barrier Reef or Rainforest Scenic Flights from Port Douglas

A regional scenic flight departing from Port Douglas.

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Low Isles afternoon sail

Regional option

Afternoon Low Isles Snorkelling & Sunset Sail from Port Douglas

A regional snorkeling and sunset sailing trip from Port Douglas.

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