Boondelbah Island Weather Forecast

    • 14
    • 23

    Shower or two

    • 15
    • 22

    Rain

    • 15
    • 22

    Rain easing

    • 12
    • 19

    Shower or two

    • 11
    • 19

    Showers. Becoming windy

    • 12
    • 20

    Showers. Becoming windy

    • 14
    • 21

    Showers easing

Today 17 May Hunter

Partly cloudy. Slight chance of a shower, most likely in the evening. Light winds. Daytime maximum temperatures in the low 20s.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
Northeasterly 15 to 20 knots, reaching up to 25 knots offshore in the late evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore north of Norah Head.
1st Swell
Easterly 1.5 to 2.5 metres.
Weather
Cloudy. 90% chance of showers offshore, 60% chance elsewhere. The chance of a thunderstorm.
Weather Situation
A strong high pressure system over the southern Tasman Sea will slowly drift east towards New Zealand over the next several days while directing an onshore easterly airstream over the coastal waters of New South Wales. A coastal trough is expected to deepen about the north coast early next week, bringing unsettled weather.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Boondelbah Island Temperature Statistics View More

May Temperature

Williamtown RAAF Base (37km)

  • Lowest 8 May, 2026

    7.8 °C

  • Average May

    16.8 °C

  • Highest 4 May, 2026

    27.5 °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

    23.9 °C
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