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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Brief Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Sylvania’s weather today, as shown in the live forecast above, is typical for a coastal suburb on the southern edge of Sydney, with mild conditions influenced by the nearby waters of Port Hacking and the Royal National Park.
What makes Sylvania’s weather different from inland Sydney?
Sylvania sits on a peninsula between the Georges River and Port Hacking, so sea breezes often keep summer temperatures a degree or two cooler than at Sydney Airport, while winter nights can be slightly milder due to the surrounding water. The suburb’s position also means afternoon sea breezes arrive earlier than in western suburbs, which can shift conditions quickly from still to gusty, especially from November to March.
Does Sylvania get its own forecast?
The Bureau of Meteorology issues a specific forecast for the Sutherland Shire, which covers Sylvania. For detailed hourly changes, the live forecast above and the Sydney Weather page give the most reliable local picture, as Sylvania sits within the Sydney metropolitan area for official warnings.
Frequently asked questions
How does the tide affect Sylvania’s weather?
Tides don’t directly change the air temperature, but low tide can expose sandbanks in Port Hacking, slightly increasing local humidity on still summer afternoons. Check Sylvania tides on the 10-day page for beach or boating plans.
Is Sylvania weather the same as Cronulla weather?
They are very similar, as both face the coast, but Cronulla is exposed to direct ocean swells and stronger sea breezes. Sylvania, sheltered by the bay, tends to have lighter winds and slightly warmer water temperatures in summer.
Where can I find the Sylvania weather 14 day forecast?
The live forecast above includes a 7-day outlook. For a Sylvania weather 14 day forecast, the Bureau of Meteorology’s extended outlook for Sydney provides a reliable guide, though confidence drops after day 7.