Viewing advice
Timing is predicted only weeks ahead, keyed to the November full moon and water temperature.
The best time to see Great Barrier Reef Coral Spawning in 2026 is November to December 2026. Timing status: Estimated timing.
On a few synchronized nights after the late-spring full moon, corals across the Great Barrier Reef release trillions of eggs and sperm bundles at once, an underwater snowstorm that seeds the next generation. The exact night hinges on water temperature and the moon.
Where to see it
These are the spots that catch it best. Tap one to see what's worth a trip nearby.
Cosmic events during this window
Cosmic events that peak while this season is on, so one trip could catch both. Meteor showers show the moon, since a dark sky is what makes them.
Related natural events
More moments to explore.
Frequently asked questions
When is Great Barrier Reef Coral Spawning 2026?
Great Barrier Reef Coral Spawning 2026: November to December 2026.