Seasonal Giants
Whale watching from the Mornington Peninsula is a seasonal experience — southern right whales and humpback whales migrate along Victoria’s coastline between May and October (with the peak typically June–September), passing close enough to the peninsula’s southern coast and the entrance to Port Phillip Bay to be observed from boats operating out of Sorrento, Queenscliff, and the bay’s southern ports.
Southern right whales are the more commonly sighted species in the peninsula’s waters — they enter Port Phillip Bay to calve and nurse (the sheltered bay provides protected waters for mothers and newborns), and sightings from the Heads and the southern beaches are possible from the shore during peak season. Boat-based whale-watching tours approach to the regulated distance and allow extended observation.
Humpback whales migrate along the outer coast (Bass Strait side) during the same season, and tours that head beyond the Heads into open water target this species. The humpbacks are the more dramatic performers — breaching, tail-slapping, and spy-hopping — but the open-water conditions can be rougher than the bay.
Frequently Asked Questions
When is whale-watching season?
May to October, with June to September the peak. Southern right whales are more commonly seen in Port Phillip Bay; humpbacks along the outer coast.
Are whale sightings guaranteed?
No — whale watching is wildlife observation and sightings depend on the animals’ movements. During peak season, experienced operators achieve high sighting rates, and many offer a partial refund or a return trip if no whales are seen.
How long is a whale-watching cruise?
Typically 2–3 hours, departing from Sorrento or Queenscliff.