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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Current Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Kiama weather is mild and generally temperate, with daytime highs around 18–24 °C in summer and 11–17 °C in winter. The live forecast above shows today’s conditions; keep reading for the seasonal pattern, typical rainfall, and wind influences.
What drives Kiama’s weather?
Kiama sits on the New South Wales south coast, directly exposed to the Tasman Sea. This coastal location gives it a mild maritime climate: summers are seldom scorching, winters are cool but not freezing. The dominant weather driver is the interaction between sea breezes and east-coast lows, which can bring prolonged rain and gusty winds. For a deeper look at how these systems affect the wider region, visit the Australia weather hub.
How do seasons affect the forecast?
Summer (December–February) averages 22–24 °C, with occasional afternoon thunderstorms. Autumn and spring are the most stable, with light winds and clear skies. Winter (June–August) averages 11–16 °C; rain is more frequent but usually in short bursts. The kiama weather 7 day forecast you see above is a reliable guide, but for longer planning, the kiama weather 14 day outlook helps catch any troughs or fronts. Hourly changes can be checked with the kiama weather hourly data available from the Bureau.
Frequently asked questions
Where can I find the kiama weather radar?
The Bureau of Meteorology’s Sydney radar – near Wollongong – covers Kiama. It shows rain intensity and movement in real time. You can access it on the BOM website or via the Sydney Weather page.
How reliable is the kiama weather forecast 21 days?
Extended outlooks beyond 10 days are broad trend guides, not detailed forecasts. The weather in kiama 10 days is more reliable for planning. For specific conditions, stick to the 7‑day forecast and the live data above.
What should I know about kiama weather bom warnings?
The Bureau of Meteorology issues marine wind warnings and severe weather alerts for the Illawarra coast. Always check the Severe Weather Warning page if you’re boating or hiking near the Kiama Blowhole.
Sources
For other Australian cities, see Melbourne Weather, Perth Weather, Brisbane Weather and Adelaide Weather.