Bay Island Weather Forecast

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    • 22

    Clear

    • 19
    • 22

    Sunny

    • 19
    • 21

    Sunny

    • 20
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    Sunny

    • 20
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    Partly cloudy

    • 21
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    Shower

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    Shower

Today 18 Sep Capricornia

Clear. Winds east to southeasterly 15 to 25 km/h tending east to northeasterly in the evening then becoming light in the late evening.

Capricornia Coastal Waters

St Lawrence to Burnett Heads
Wind
East to southeasterly 15 to 20 knots.
Seas
1.5 metres, decreasing to 1 metre later in the evening.
1st Swell
Southeasterly 1 to 2 metres offshore.
Weather
Mostly clear.
Weather Situation
A weakening ridge of high pressure extends over the South Queensland waters from a high pressure system over southeast Australia. The high pressure system drifts slowly northeast over the next couple of days, reaching the southern Coral Sea on Saturday and Sunday before it weakens on Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Bay Island Temperature Statistics View More

September Temperature

Williamson Airfield (21km)

  • Lowest 3 September, 2026

    8.6 °C

  • Average September

    19.6 °C

  • Highest 16 September, 2026

    31.9 °C

Climate (2021–2026)

Williamson Airfield (21km)

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  • Average Low 2021–2026

    17.5 °C

  • Average 2021–2026

    22.7 °C

  • Average High 2021–2026

    28.8 °C
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