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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Southern Monitor Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Koonawarra’s weather right now is shown in the live forecast above. The suburb sits on the NSW coast near Wollongong, so expect mild temperatures, sea breezes, and the occasional shower typical of the Illawarra region.
How does Koonawarra’s coastal location affect its weather?
The ocean moderates temperatures year-round. Summers rarely exceed 30°C, and winters stay above 5°C. Onshore winds bring afternoon sea breezes, especially from November to March. Rain falls fairly evenly across the year, with slightly more in autumn and early winter.
What should you watch for in today’s forecast?
Check the live forecast above for the next few days. Be alert for possible southerly busters – sudden cool changes that can drop temperatures sharply. If the forecast shows strong wind, plan coastal activities accordingly. For broader conditions across the state, see our Australia weather hub and Sydney Weather page.
Does Koonawarra get severe storms?
Yes, especially in late spring and summer. Thunderstorms can produce heavy rain, gusty winds and hail. Check warnings on our Severe Weather Warning page when storms are forecast.
When is the best time to visit Koonawarra?
Late summer to early autumn (February–April) gives warm, settled weather with fewer storms. Sea temperatures are also at their warmest then, ideal for beachside activities.
Is fog common in Koonawarra?
Patchy morning fog occurs occasionally in winter when cold air settles over the coastal plain. It usually clears by mid-morning as the sun warms the ground.