Garden Island Weather Forecast

    • 10
    • 26

    Sunny

    • 14
    • 21

    Showers

    • 13
    • 23

    Showers

    • 10
    • 18

    Shower or two. Windy

    • 9
    • 20

    Mostly sunny

    • 8
    • 21

    Sunny

    • 9
    • 23

    Sunny

Today 8 Sep Hunter

Mostly sunny. Slight chance of a shower about the Upper Hunter, near zero chance elsewhere. Winds northwesterly 25 to 35 km/h. Daytime maximum temperatures 22 to 27.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
Northerly 15 to 20 knots, reaching up to 30 knots offshore north of Port Stephens during the morning and early afternoon. Winds turning northwesterly in the evening.
Seas
Around 1 metre, increasing to 1 to 2 metres offshore.
1st Swell
Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Weather
The chance of a thunderstorm south of Port Stephens this morning. Sunny afternoon.
Weather Situation
A ridge over the north coast will slowly drift eastwards from today, directing fresh and gusty northerlies. A series of troughs is expected to cross the southern and central coastal waters from today, bringing south to southeasterly changes in their wake. Winds should strengthen and turn south to southwesterly on Wednesday or Thursday as a low pressure system cross the southern coastal waters.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Garden Island Temperature Statistics View More

September Temperature

Williamtown RAAF Base (21km)

  • Lowest 1 September, 2025

    5.5 °C

  • Average September

    13.9 °C

  • Highest 4 September, 2025

    24.3 °C

Climate (2020–Present)

Williamtown RAAF Base (21km)

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  • Average Low 2020–2025

    13.3 °C

  • Average 2020–2025

    18 °C

  • Average High 2020–2025

    23.6 °C
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