Boondelbah Island Weather Forecast

    • 12
    • 23

    Partly cloudy

    • 13
    • 23

    Shower or two

    • 15
    • 22

    Showers

    • 16
    • 24

    Possible shower

    • 15
    • 27

    Possible shower

    • 17
    • 29

    Showers

    • 17
    • 26

    Showers easing

Today 20 Oct Hunter

Partly cloudy. The chance of fog early this morning. Medium chance of showers, most likely this afternoon. The chance of a thunderstorm during this afternoon and evening. Light winds becoming east to northeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening. Daytime maximum temperatures in the low to mid 20s.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
Northeasterly 10 to 15 knots, reaching up to 20 knots south of Port Stephens during the afternoon and evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres inshore during the afternoon.
1st Swell
Northeasterly around 1 metre.
Weather
Partly cloudy. 50% chance of showers. The chance of a thunderstorm.
Weather Situation
A strong high pressure system over the Tasman Sea is maintaining northeasterly winds across the coastal waters. Very little change of weather pattern is forecast through the week due to the slow movement of the high. Then, a cold front looks set to cross the state during the weekend into early next week, bringing a southerly change in its wake.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Boondelbah Island Temperature Statistics View More

October Temperature

Williamtown RAAF Base (37 km)

  • Lowest 9 October, 2026

    7.8 °C

  • Average October

    18.4 °C

  • Highest 12 October, 2026

    36.4 °C

Climate (2021–2026)

Williamtown RAAF Base (37 km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    13.5 °C

  • Average 2021–2026

    18.3 °C

  • Average High 2021–2026

    24 °C
Get WillyWeather+ to remove ads