Boondelbah Island Weather Forecast

    • 13
    • 20

    Showers. Possible storm

    • 12
    • 18

    Partly cloudy

    • 7
    • 21

    Sunny

    • 11
    • 19

    Shower or two

    • 9
    • 19

    Partly cloudy

    • 8
    • 20

    Partly cloudy

    • 8
    • 24

    Sunny

Today 26 Aug Hunter

Cloudy morning, partly cloudy afternoon. Very high chance of showers about the Lower Hunter, high chance elsewhere. The chance of a thunderstorm during the morning and afternoon. Winds west to northwesterly 15 to 20 km/h tending west to southwesterly in the middle of the day then tending southeast to southwesterly in the early afternoon. Daytime maximum temperatures between 18 and 21.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
West to northwesterly 10 to 15 knots shifting southerly 15 to 20 knots in the late morning.
Seas
Below 1 metre, increasing to 1 to 1.5 metres around midday.
1st Swell
Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Port Stephens later in the evening.
Weather
Cloudy. 95% chance of showers. The chance of a thunderstorm.
Weather Situation
A trough near the south coast this morning is heading north and crossing the rest of the coastal waters during today, bringing a fresh southerly wind change in its wake. Winds will then ease later in the week as a high pressure ridge develops across the coastal waters.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Boondelbah Island Temperature Statistics View More

August Temperature

Williamtown RAAF Base (37km)

  • Lowest 7 August, 2026

    2.7 °C

  • Average August

    13.1 °C

  • Highest 24 August, 2026

    24.9 °C

Climate (2021–2026)

Williamtown RAAF Base (37km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    18.2 °C

  • Average High 2021–2026

    24 °C
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