Flat Top Island Weather Forecast

    • 17
    • 25

    Partly cloudy

    • 16
    • 25

    Mostly sunny

    • 11
    • 26

    Sunny

    • 12
    • 26

    Mostly sunny

    • 13
    • 26

    Partly cloudy

    • 16
    • 26

    Shower or two

    • 17
    • 26

    Shower or two

Today 18 Sep Mackay

Partly cloudy. Slight chance of a shower, most likely in the early morning. Winds southeasterly 25 to 40 km/h.

Mackay Costal Waters

Bowen to St Lawrence
Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots offshore north of Hamilton Island during the morning.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore.
1st Swell
Easterly below 1 metre inshore, increasing to 1 to 2 metres offshore.
Weather
Partly cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Flat Top Island Temperature Statistics View More

September Temperature

Mackay (Mount Basset) (5km)

  • Lowest 4 September, 2026

    14.2 °C

  • Average September

    20.8 °C

  • Highest 4 September, 2026

    27.3 °C

Climate (2021–2026)

Mackay (Mount Basset) (5km)

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  • Average Low 2021–2026

    20.1 °C

  • Average 2021–2026

    23.5 °C

  • Average High 2021–2026

    27.5 °C
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