Swan Island Weather Forecast

    • 17
    • 36

    Clear

    • 20
    • 39

    Sunny morning. Possible storm

    • 22
    • 27

    Showers. Possible storm

    • 17
    • 27

    Possible shower

    • 18
    • 34

    Mostly sunny

    • 20
    • 28

    Shower or two

    • 19
    • 24

    Showers

Today 5 Dec Hunter

Mostly clear. The chance of smoke haze early this evening. Winds northwest to northeasterly 15 to 20 km/h.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
Northeasterly 15 to 25 knots turning northerly 20 to 25 knots in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore north of Norah Head by early evening.
1st Swell
East to northeasterly below 1 metre.
Weather
Clear.
Weather Situation
A high pressure system lies over the Tasman Sea, extending a ridge over the state. Northerly winds strengthening by the weekend, with a brief weak southerly change expected along the south coast today. Then, a cold front will cross the state during the weekend, bringing a fresh to strong southerly wind change over coastal waters in its wake.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan Island Temperature Statistics View More

December Temperature

Williamtown RAAF Base (18km)

  • Lowest 2 December, 2025

    11.3 °C

  • Average December

    19.3 °C

  • Highest 1 December, 2025

    28.1 °C

Climate (2020–Present)

Williamtown RAAF Base (18km)

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  • Average Low 2020–2025

    13.3 °C

  • Average 2020–2025

    18 °C

  • Average High 2020–2025

    23.7 °C
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