Sorrento, VIC tide times

Sorrento sits on the Mornington Peninsula at Point Nepean, adjacent to the narrow entrance channel of Port Phillip Bay — one of the most hydraulically active stretches of water in Australia. That entrance, known as the Rip, is a 1.2-kilometre gap between Point Nepean and Point Lonsdale across which the entire tidal exchange of a 1,930-square-kilometre bay is forced twice a day. Spring tidal currents through the Rip reach 6 to 8 knots, among the strongest recorded in Australian coastal waters. The result is a water surface that can be violently rough in the Rip passage itself even on days when the bay inside and the open Bass Strait outside are both calm.

Mean tidal range inside Port Phillip at Sorrento is approximately 0.8 metres — relatively moderate — but the restricted entrance dramatically amplifies current speed. The physics are straightforward: a large volume of water forced through a narrow gap produces fast flow, and Port Phillip is a large bay through a very small hole. The Victorian tide gauge at Point Lonsdale is the primary reference for the Rip entrance; the Bureau of Meteorology (BoM) publishes authoritative predictions.

The Rip historically claimed many ships. The Eliza went down in 1839; over the following decades several dozen vessels were lost in the passage before the construction of lighthouses and the development of pilot boat services began reducing the toll. The region around Point Nepean is now a national park, and the walking tracks at the tip of the peninsula give views directly over the entrance from the clifftops.

The Sorrento to Queenscliff car and passenger ferry crosses the Rip daily, linking the Mornington Peninsula to the Bellarine Peninsula. The crossing is roughly 40 minutes and navigates the entrance channel; passengers see the Rip's current behaviour from deck at close range. The ferry operates on a timetable and is subject to cancellation in extreme conditions.

The Sorrento foreshore on the bay side has calm sheltered beach swimming — the water inside Port Phillip is protected from Bass Strait swell. The ocean side, on the Bass Strait coast of the peninsula, has exposed surf beaches. The contrast between the two sides of the peninsula, separated by 2 kilometres, is one of the more striking coastal geographies in southern Australia.

Predictions on this page come from Open-Meteo Marine, a global gridded ocean model accurate to within approximately ±45 minutes on timing and ±0.2–0.3 metres on height. For authoritative Australian tidal predictions, consult the Bureau of Meteorology at bom.gov.au.