Tides in Sydney: great highs and lows

Along with the tide fluctuations, swimmers have discovered that sea temperatures are below average for this time of year. The water temperature on Tuesday is 21.6 degrees, 0.7 degrees below the monthly average. In the past decade, the warmest sea temperature recorded in Sydney was 25.3 degrees in 2021.

But the good news is that the sea water temperature in Sydney is expected to rise to 23.3 degrees in the coming 10 days. The warmer sea temperatures will likely result in more people flocking to the beach.

People escaping the heat by flocking to the beach are battling the tide.

People escaping the heat by flocking to the beach are battling the tide. Credit:Nick Moir

The city has enjoyed warmer temperatures over the Christmas period after a year of heavy rain, but wet weather is set to return in the coming days. Temperatures in Sydney’s CBD will reach 28 degrees on Tuesday and Wednesday before falling to 25 to 27 degrees for the rest of the week, with the possibility of showers.

In NSW, drowning deaths are 2.7 times more likely to occur on public holidays and 1.6 times more likely to occur during school holidays.

“The statistics really show that the critical surfing safety messages that SLSNSW works to spread throughout the year need to be taken forward in our communities,” said Steve Pearce, Chief Executive Officer of Surf Life Saving NSW.

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“The most important thing to do when considering getting in the water is to do so on a patrolled beach between the red and yellow flags.”

Meanwhile, the NSW RFS issued a full fire ban for the Northern Riverina and Southern Riverina regions on Wednesday due to hot and windy conditions. Temperatures are expected to hit 37 degrees in Hay, while Griffith will reach 38 degrees. In the South Riverina, temperatures will reach 36 degrees in Berrigan.

This year was marked by wet weather driven by three climate phenomena: La Nina, the Indian Ocean Negative Dipole (IOD), and the Southern Annular Mode (SAM). A La Nina event occurs when the trade winds are stronger than usual, pushing a warm patch closer to Australia where air is more likely to rise, producing clouds and rain.

This usually results in above-average winter and spring rainfall in eastern Australia. Meanwhile, negative IOD increases the likelihood of above-average winter to spring precipitation for large parts of Australia, and positive SAM also results in higher winter precipitation in general.

The good news is that these climate drivers have already weakened or will start to do so next year. Meteorologists are expecting a return to warmer conditions, known as El Nino, but it will be several months before they can determine if an El Nino event is underway for next summer, during which hot and dry conditions would return to the east coast .

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https://www.smh.com.au/environment/weather/sydney-s-tidal-variations-create-havoc-for-boaties-and-swimmers-20221227-p5c8xi.html?ref=rss&utm_medium=rss&utm_source=rss_environment Tides in Sydney: great highs and lows

Brian Lowry

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