Southern Harbours

Botany Bay

Lower Georges River

Port Hacking

Tuesday 30 May 2023

Issued at 8:00 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.

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For information on beach closures please contact relevant authorities such as local councils.


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 – Sunny. 

Winds – Light becoming W 15 to 20 km/h in the morning then becoming light in the late afternoon.

Rainfall – 2.5 mm in the previous 5 days.

Expected maximum temperature – 21oC

Ocean temperature – 19oC

Swell – Southerly 1.5 metres.

High tide – 1.5 metres at 17:00

Low tide – 0.59 metres at 10:31



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