Boondelbah Island Weather Forecast

    • 16
    • 25

    Possible shower

    • 15
    • 25

    Partly cloudy

    • 15
    • 29

    Possible late shower

    • 18
    • 24

    Shower or two

    • 18
    • 28

    Partly cloudy

    • 19
    • 33

    Mostly sunny

    • 20
    • 32

    Mostly sunny

Today 20 Jan Hunter

Partly cloudy. Slight chance of a shower, most likely in the morning and early afternoon. Winds south to southeasterly 15 to 20 km/h becoming light before dawn then becoming southeasterly 15 to 25 km/h in the morning. Overnight temperatures falling to between 12 and 16 with daytime temperatures reaching 22 to 27.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
Southeasterly 10 to 15 knots decreasing to about 10 knots in the late evening.
Seas
Around 1 metre.
1st Swell
Southeasterly 1.5 to 2 metres, increasing to 2 to 3 metres around midday.
Weather
Mostly sunny.
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

    23.2 °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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