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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Southern Focus Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Rockdale’s weather today, as shown in the live forecast above, is typical for a coastal Sydney suburb—mild with a chance of a shower, driven by the nearby ocean and prevailing easterly winds.
What is the typical weather pattern for Rockdale?
Rockdale sits on the shores of Botany Bay, so its climate is moderated by the sea. Summers are warm and humid, winters cool and relatively dry, with the most rain falling in autumn and early spring.
- Summer (Dec–Feb): average highs around 26°C, with occasional afternoon sea breezes.
- Winter (Jun–Aug): average highs near 17°C; overnight lows can drop to 8°C.
- Rainfall: spread fairly evenly through the year, though February to June tends to be wettest.
- Wind: predominantly north-easterly in summer, westerly in winter.
How can I check the Rockdale forecast for the next week or hour?
For a detailed outlook, the live forecast above updates regularly. For longer-range planning, use the weather in rockdale 10 days or rockdale weather 14 days tabs on the Bureau of Meteorology site. If you need precise timing for outdoor plans, the rockdale weather hourly view shows temperature, wind and rain minute-by-minute.
- For weather in rockdale tomorrow, the forecast above includes the next 48 hours.
- Check bom rockdale for official warnings and radar loops.
- The rockdale weather radar from BOM’s Sydney (Terrey Hills) radar shows approaching rain bands.
Does Rockdale get much wind from Botany Bay?
Yes. The bay creates a local sea-breeze effect, especially on summer afternoons. Winds can pick up to 20–30 km/h from the north-east, which moderates temperatures but can make beach conditions choppy.
Is Rockdale prone to flooding?
Low-lying areas near Cooks River and Botany Bay can experience flash flooding during heavy rain. Check the rockdale weather radar and BOM flood warnings if a storm is forecast.
How does Rockdale weather compare to Sydney CBD?
Rockdale is usually 1–2°C cooler than the city centre in summer due to the bay breeze, and slightly warmer in winter because of the ocean’s moderating effect. Rainfall totals are similar.
For broader conditions, see our Australia weather hub, Sydney Weather, or Melbourne Weather. Stay alert with our Severe Weather Warning page.