Sydney Harbour

Middle Harbour | Nth Harbour | Port Jackson

Lane Cove River | Parramatta River

Sunday 17 December 2017

Issued at 12:25 PM

Rainfall data has been used to predict the likelihood of bacterial contamination at swimming sites in Sydney Harbour.

Hover over maps for council updates, the latest weekly star ratings and annual Beach Suitability Grades.


Pollution is unlikely Pollution is unlikely, enjoy your swim!
Pollution is possible Pollution is possible, take care.
Pollution is likely Pollution is likely, avoid swimming today.
Update Updated information available.

More information about this forecast


As a general precaution, swimming in Sydney Harbour should be avoided for up to three days following rainfall or for as long as stormwater is present.

* Please note water temperature in estuarine areas can be warmer in summer and cooler in winter than the reported ocean temperature.

Beach Conditions

Weather – Cloudy. Medium chance of showers, becoming less likely this morning but possibly redeveloping again this afternoon. The chance of a thunderstorm in the early morning and again during the afternoon. 

Winds – S/SE 15 to 20 km/h turning E/NE in the afternoon.

Rainfall – 7mm in the previous 4 days

Expected maximum temperature – 27oC

Ocean temperature – 21oC

Swell – Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.

High tide – 1.71 metres at 08:32.

Low tide – 0.42 metres at 15:07.



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