Swan Island Weather Forecast

    • 13
    • 24

    Partly cloudy

    • 12
    • 24

    Shower or two

    • 14
    • 25

    Shower or two

    • 15
    • 26

    Mostly sunny

    • 16
    • 27

    Mostly sunny

    • 15
    • 25

    Shower or two

    • 11
    • 24

    Shower or two

Today 30 Apr Hunter

Partly cloudy. Patchy fog in the early morning. Slight chance of a shower about the Lower Hunter, near zero chance elsewhere. Light winds becoming easterly 15 to 20 km/h in the middle of the day then becoming light in the evening. Overnight temperatures falling to between 8 and 13 with daytime temperatures reaching 21 to 26.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
Easterly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Southerly around 1 metre.
Weather
Mostly sunny.
Weather Situation
A strong high-pressure system over the Tasman Sea is slowly drifting towards New Zealand while extending a ridge over New South Wales coastal waters, maintaining northeast to southeasterly winds. Very little change is expected through the weekdays, then winds will become fresh north to northeasterly during the weekend as a cold front and its associated trough approach the state.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan Island Temperature Statistics View More

April Temperature

Williamtown RAAF Base (18km)

  • Lowest 15 April, 2026

    8.4 °C

  • Average April

    18.3 °C

  • Highest 7 April, 2026

    31.9 °C

Climate (2021–Present)

Williamtown RAAF Base (18km)

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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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