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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.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading out on Lake Macquarie — Gwandalan’s weather today will dictate whether it’s a morning on the water or an afternoon indoors.
What is the weather like in Gwandalan right now?
The live forecast above shows the current conditions for Gwandalan, a lakeside suburb on the northern edge of Lake Macquarie. Temperatures here are shaped by the lake breeze and the nearby Pacific Ocean, so what you see on the radar can change quickly.
- Expect a sea breeze most afternoons, especially from November to March.
- Morning fog is common in autumn and winter, burning off by mid-morning.
- Summer storms often develop inland and move east — check the Bureau of Meteorology radar for approaching cells.
What should I plan for the next 10 days?
The weather in Gwandalan 10 days out gives a useful trend, but coastal forecasts can shift. The live forecast above shows the outlook — use it to plan outdoor work or weekend trips.
- Rainfall is most reliable in autumn and early winter; summer tends to be humid with occasional thunderstorms.
- Minimums in July can drop to around 5°C, while January highs often reach 28°C.
- Winds are lighter in the morning, picking up from the north-east by lunchtime.
Is Gwandalan affected by coastal storms?
Yes, east coast lows can bring heavy rain and damaging winds, usually between April and August. The Australia weather hub provides warnings when these systems develop off the NSW coast.
How accurate is the 10-day forecast for Gwandalan?
Accuracy drops after day 5, especially for rain timing. The weather radar Gwandalan relies on is the Sydney radar at Terrey Hills, which picks up approaching showers well but can miss local lake-effect drizzle.
Does Gwandalan get snow?
No — snow is extremely rare at this elevation. Frost can form on clear winter mornings, but the lake moderates temperatures enough to keep snow away. For cold conditions, check Sydney weather as a regional reference.