As a general rule I don't swim in Melbourne beaches until there's been a couple of really hot days. I'm not a fan of the colder water, but after a run of hot days (mid thirties) the water can be beautiful. We also have some of the best beaches around the Bay.
This approach also means generally the water is good for swimming. Best to avoid swimming in beaches after heavy rains and this approach coincidently corresponds. However, a better way to check the health of the beaches and the Yarra is to check the daily reports in the summer swimming season by the EPA. The following are links to the EPA reports for the Bay beaches and the Yarra.
Beach report - http://yarraandbay.vic.gov.au/beach-report
Yarra report - http://yarraandbay.vic.gov.au/yarra-watch
Kelvin Eldridge
NOTE: I'm not quite sure how often the testing is done, but if I'm right, the testing is done once a week and the reports are forecasts. Not great as this isn't the actual quality of the water but a forecast. The factors in the forecast are historical sampling, rain previous 24 hours (less is better), rain predicted for forecast period (less is better), cloud cover (less is better). In essence best to swim in areas with historically low microbiological sample, no rain prior or during the forecast period, and clear skies.
This approach also means generally the water is good for swimming. Best to avoid swimming in beaches after heavy rains and this approach coincidently corresponds. However, a better way to check the health of the beaches and the Yarra is to check the daily reports in the summer swimming season by the EPA. The following are links to the EPA reports for the Bay beaches and the Yarra.
Beach report - http://yarraandbay.vic.gov.au/beach-report
Yarra report - http://yarraandbay.vic.gov.au/yarra-watch
Kelvin Eldridge
NOTE: I'm not quite sure how often the testing is done, but if I'm right, the testing is done once a week and the reports are forecasts. Not great as this isn't the actual quality of the water but a forecast. The factors in the forecast are historical sampling, rain previous 24 hours (less is better), rain predicted for forecast period (less is better), cloud cover (less is better). In essence best to swim in areas with historically low microbiological sample, no rain prior or during the forecast period, and clear skies.
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