Newcastle Weather Forecast

    • 22
    • 26

    Shower or two

    • 20
    • 23

    Showers

    • 19
    • 25

    Showers

    • 18
    • 25

    Showers

    • 19
    • 25

    Showers

    • 19
    • 26

    Shower or two

    • 19
    • 26

    Shower or two

Today 18 Mar Newcastle

Partly cloudy. Medium chance of showers, most likely in the afternoon. The chance of a thunderstorm, possibly severe with heavy rain which may lead to flash flooding. Winds southerly 15 to 20 km/h tending southeasterly in the late afternoon then becoming light in the evening.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
South to southeasterly 10 to 15 knots becoming variable about 10 knots in the early afternoon.
Seas
Around 1 metre.
1st Swell
Southerly around 1 metre.
Weather
Partly cloudy. 50% chance of showers. The chance of a thunderstorm this morning.
Weather Situation
A high over the Tasman Sea extends a ridge over northern coastal waters, while a trough is brushing the southern and central parts of the coast, bringing a coastal southerly change in its wake, before stalling about the Hunter Coast later today. Then, a series of high pressure systems will pass to the south, maintaining moist onshore easterly winds through the second half of the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Newcastle Temperature Statistics View More

March Temperature

Newcastle (Nobbys) (2km)

  • Lowest 16 March, 2026

    17.5 °C

  • Average March

    21.8 °C

  • Highest 11 March, 2026

    28.3 °C

Climate (2021–Present)

Newcastle (Nobbys) (2km)

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  • Average Low 2021–2026

    15.3 °C

  • Average 2021–2026

    18.5 °C

  • Average High 2021–2026

    22.3 °C
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