Issued at 7:30 AM
Rainfall data has been used to predict the likelihood of bacterial contamination at swimming sites in Sydney Harbour.
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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.
Weather – Cloudy with high (80%) chance of rain and the chance of a thunderstorm during this afternoon and evening.
Winds – S 15 to 25 km/h becoming light in the morning then becoming SE 15 to 20 km/h in the late evening.
Rainfall – 12mm in the previous 4 days
Expected maximum temperature – 25oC
Ocean temperature – 22oC
Swell – Northeasterly around 1 metre, increasing to 1 to 1.5 metres offshore.
High tide – 1.56 metres at 13:34
Low tide – 0.66 metres at 07:14
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