Roundish Island Weather Forecast

    • 20
    • 22

    Shower

    • 19
    • 22

    Partly cloudy

    • 19
    • 21

    Sunny

    • 19
    • 21

    Sunny

    • 20
    • 21

    Sunny

    • 21
    • 22

    Partly cloudy

    • 21
    • 22

    Shower

Today 17 Sep Central Coast and Whitsundays

Mostly clear. Slight chance of a shower. Winds easterly 25 to 35 km/h decreasing to 15 to 25 km/h in the evening.

Mackay Costal Waters

Bowen to St Lawrence
Wind
Southeasterly 20 to 25 knots, reaching up to 30 knots offshore north of Hamilton Island in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore.
1st Swell
Easterly around 1 metre, increasing to 1 to 1.5 metres by early evening.
Weather
Mostly clear.
Weather Situation
A high pressure ridge extends over the North Queensland waters, strengthening on Friday before weakening on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Roundish Island Temperature Statistics View More

September Temperature

St Lawrence (34km)

  • Lowest 2 September, 2026

    10.1 °C

  • Average September

    19.8 °C

  • Highest 7 September, 2026

    31.8 °C

Climate (2021–2026)

St Lawrence (34km)

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  • Average Low 2021–2026

    17.9 °C

  • Average 2021–2026

    22.9 °C

  • Average High 2021–2026

    29 °C
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