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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Pulse Hub Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
The live forecast above shows Bonnet Bay’s conditions right now, with the key takeaway being that the area typically shares the same maritime influence as nearby cronulla weather, meaning the bay’s own readings will usually be within a degree or two of that station’s official observation.
What is the current weather in Bonnet Bay?
The live forecast above gives the most accurate snapshot of Bonnet Bay right now. Because the suburb sits about 3 kilometres inland from the coast at Cronulla, its conditions often lag a little behind the coastal readings—slightly milder in the afternoon and a touch cooler overnight. Check the real-time wind and temperature from the data above before heading out.
How do tides affect Bonnet Bay local conditions?
Bonnet Bay is named for the shape of the Woronora River as it widens toward the Georges River, so bonnet bay tides directly influence the water level you’ll see at the local boat ramp and reserve.
- High tide pushes saltwater up the river, which can make the air feel slightly more humid in summer.
- Low tide exposes mudflats and sandbars; the breeze can pick up a faint estuarine smell.
- The tidal range here is about 1.5 metres—check the live forecast above for today’s high and low times relative to sydney weather tide charts.
Does Bonnet Bay get its own Bureau of Meteorology forecast?
No—BOM issues forecasts for the Sutherland Shire area. Bonnet Bay’s conditions are drawn from the Cronulla and Sydney Airport observations. The live forecast above applies directly to your location.
Is Bonnet Bay prone to flooding during heavy rain?
The Woronora River can rise quickly after sustained downpours. Low-lying areas near the Bonnet Bay Reserve and boat ramp may see localised inundation during east-coast lows. Check the live forecast for rainfall intensity.
How does the weather here compare to Cronulla beach?
Bonnet Bay is generally 1–2°C cooler than Cronulla in the afternoon because it’s sheltered from the sea breeze. Overnight, the bay can be a degree warmer due to the river’s thermal mass. The live forecast above shows both readings.
For broader conditions, check Australia weather hub or see the latest totals on our Sydney Weather page. If you’re after coastal information, Severe Weather Warning updates are posted for the region.