Newcastle Weather Forecast

    • 16
    • 33

    Sunny

    • 22
    • 36

    Mostly sunny

    • 21
    • 30

    Possible shower or storm

    • 21
    • 37

    Mostly sunny

    • 24
    • 32

    Shower or two

    • 21
    • 28

    Shower or two

    • 20
    • 29

    Possible shower

Today 18 Dec Newcastle

The chance of fog in the early morning. Sunny day. Winds north to northeasterly 15 to 20 km/h tending east to northeasterly 15 to 25 km/h in the early afternoon then tending north to northeasterly 15 to 20 km/h in the evening.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
North to northeasterly 15 to 25 knots.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Weather
Sunny.
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Newcastle Temperature Statistics View More

December Temperature

Newcastle (Nobbys) (2km)

  • Lowest 2 December, 2025

    11.3 °C

  • Average December

    21.4 °C

  • Highest 5 December, 2025

    36.1 °C

Climate (2020–Present)

Newcastle (Nobbys) (2km)

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  • Average Low 2020–2025

    15.3 °C

  • Average 2020–2025

    18.5 °C

  • Average High 2020–2025

    22.3 °C
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