Swan Island Weather Forecast

    • 18
    • 30

    Partly cloudy

    • 18
    • 28

    Partly cloudy

    • 18
    • 32

    Sunny

    • 19
    • 35

    Sunny

    • 19
    • 36

    Becoming windy. Sunny

    • 20
    • 38

    Sunny

    • 21
    • 26

    Cloudy

Today 5 Jan Hunter

Partly cloudy. Medium chance of showers about the Upper Hunter, slight chance elsewhere. The chance of a thunderstorm in the afternoon and early evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds southeasterly 15 to 20 km/h becoming light in the evening. Daytime maximum temperatures 28 to 33.

Hunter Coastal Waters

Seal Rocks to Broken Bay
Wind
South to southwesterly 10 to 15 knots tending south to southeasterly in the middle of the day.
Seas
Below 1 metre.
1st Swell
East to northeasterly around 1 metre.
Weather
Partly cloudy. The chance of a thunderstorm in the afternoon and early evening.
Weather Situation
A high in the eastern Tasman Sea extends a ridge towards NSW. A trough will brush along the coast during today, bringing a southerly change to the southern and central waters. Then, winds will gradually turn northerly again as another high pressure system enters the Tasman Sea midweek.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan Island Temperature Statistics View More

January Temperature

Williamtown RAAF Base (18km)

  • Lowest 1 January, 2026

    14.8 °C

  • Average January

    21.4 °C

  • Highest 3 January, 2026

    27.5 °C

Climate (2021–Present)

Williamtown RAAF Base (18km)

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  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    18 °C

  • Average High 2021–2026

    23.8 °C
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