Garden Island Weather Forecast

    • 14
    • 27

    Sunny

    • 13
    • 30

    Sunny

    • 15
    • 20

    Showers

    • 12
    • 20

    Shower or two

    • 10
    • 21

    Partly cloudy

    • 9
    • 24

    Sunny

    • 11
    • 27

    Sunny

Today 25 Sep Hunter

Partly cloudy. Patchy morning fog. Slight chance of a shower in the afternoon and evening. The chance of a thunderstorm in the afternoon and evening. Light winds. Daytime maximum temperatures 26 to 31.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
Northerly 20 to 25 knots, reaching up to 30 knots offshore south of Norah Head in the evening.
Seas
1.5 to 2.5 metres.
1st Swell
Southerly around 1 metre.
Weather
Mostly sunny. The chance of a thunderstorm inshore during this afternoon and evening.
Weather Situation
A high pressure system over the Tasman Sea directs a northeasterly flow through the coastal waters. A cold front and trough will enter the Tasman Sea early Saturday, bringing a southerly change which will gradually track northward through the weekend.
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 9 September, 2026

    4.4 °C

  • Average September

    17.2 °C

  • Highest 21 September, 2026

    35.4 °C

Climate (2021–2026)

Williamtown RAAF Base (21km)

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  • Average Low 2021–2026

    13.5 °C

  • Average 2021–2026

    18.2 °C

  • Average High 2021–2026

    24 °C
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