Boondelbah Island Weather Forecast

    • 19
    • 28

    Storm

    • 18
    • 27

    Showers. Possible storm

    • 18
    • 26

    Showers. Possible storm

    • 18
    • 23

    Possible morning storm. Rain

    • 18
    • 26

    Shower or two

    • 18
    • 26

    Shower or two

    • 18
    • 26

    Shower or two

Today 15 Jan Hunter

Partly cloudy. Slight chance of a shower along the coastal fringe, near zero chance elsewhere. The chance of a thunderstorm, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds northeast to southeasterly 15 to 20 km/h.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
Northeasterly 20 to 30 knots.
Seas
2 metres.
1st Swell
Southerly around 1 metre.
Weather
Partly cloudy. A thunderstorm likely.
Weather Situation
A weak ridge lies over the New South Wales coast, maintaining an onshore east to northeasterly airstream. Winds will increase fresh to strong this evening, before a trough enters the south coast and develops into a low pressure system on Friday, bringing strong to gale force southeasterly winds in its wake as it tracks north. Then, a high pressure system will move into the south Tasman Sea, maintaining fresh to strong southeasterly winds over coastal waters.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Boondelbah Island Temperature Statistics View More

January Temperature

Williamtown RAAF Base (37km)

  • Lowest 1 January, 2026

    14.8 °C

  • Average January

    23.6 °C

  • Highest 10 January, 2026

    40.5 °C

Climate (2021–Present)

Williamtown RAAF Base (37km)

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  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    18.1 °C

  • Average High 2021–2026

    23.8 °C
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