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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Watch 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 for Newcastle’s exact conditions, but expect a mild day with partly cloudy skies and a moderate sea breeze — typical for this time of year.
What will the temperature be tomorrow in Newcastle?
The maximum temperature should sit in the low-to-mid 20s Celsius, with an overnight minimum around 15–17°C. The coastal location means the afternoon sea breeze will keep the immediate shore cooler than inland suburbs. If you plan to be outdoors, the morning and late afternoon are the most comfortable windows for activity.
Is rain expected?
Rain chances are low — generally below 20 per cent — but a brief coastal shower cannot be ruled out if a trough drifts down from the north. Most models show dry conditions through the day. The UV index will be moderate, so sunscreen is still wise if you are spending time outside between 10am and 3pm.
Frequently asked questions about Newcastle weather
Should I carry an umbrella tomorrow in Newcastle?
Probably not. The chance of rain is low, and any shower would be brief and light. An umbrella would be more useful as a sunshade than for rain.
Will it feel humid tomorrow?
No more than usual for a coastal spring day. Relative humidity should stay around 55–65%, which feels comfortable with the breeze. Not sticky like a summer afternoon.
How does tomorrow compare to today’s weather?
Tomorrow will be a degree or two cooler than today, with a slightly stronger afternoon seabreeze. Otherwise, conditions are very similar — mainly fine with patchy cloud.
For broader conditions across the region, see our Australia weather hub and the dedicated Sydney Weather page for a longer-range outlook.