Southern Harbours

Botany Bay

Lower Georges River

Port Hacking

Thursday 21 June 2018

Issued at 11:30 AM

Rainfall data has been used to predict the likelihood of bacterial contamination at swimming sites in Botany Bay, lower Georges River and Port Hacking.

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



Sydney Water has advised of a sewage overflow in Sylvania on 21 June 2018 which may affect the George's River. As a precaution, swimming should be avoided in the vicinity of the Sylvania Marina and Horse Rock Point due to the possibility of pollution. Contact Sydney Water on 13 20 90 for details.


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 Botany Bay, lower Georges River and Port Hacking should be avoided for up to three days following rainfall or for as long as stormwater is present. The most obvious signs of stormwater pollution are water discolouration as well as debris in the water and on the tide line.

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


Beach Conditions

Weather – Mostly cloudy. Medium chance of showers, becoming less likely this afternoon and evening. 

Winds – Light.

Rainfall – 71mm in the previous 5 days.

Expected maximum temperature – 18oC

Ocean temperature – 19oC

Swell – Southeasterly 2 metres.

High tide – 1.5 metres at 15:20.

Low tide – 0.47 metres at 08:58.



Report pollution 131 555
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