Castor Reef Weather Forecast

    • 22
    • 23

    Shower

    • 22
    • 23

    Shower

    • 22
    • 22

    Shower

    • 22
    • 23

    Shower

    • 22
    • 23

    Partly cloudy

    • 22
    • 23

    Partly cloudy

    • 23
    • 23

    Shower

Today 18 Aug Herbert and Lower Burdekin

Partly cloudy. Slight chance of a shower in the late morning and afternoon. Light winds becoming southeasterly 15 to 25 km/h in the morning then tending easterly 20 to 30 km/h in the middle of the day. Overnight temperatures falling to between 9 and 15 with daytime temperatures reaching 23 to 28.

Townsville Coastal Waters

Cardwell to Bowen
Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots offshore south of Cape Bowling Green in the afternoon.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres around midday.
1st Swell
Easterly 1 to 1.5 metres outside the reef.
Weather
Partly cloudy. 60% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Castor Reef Temperature Statistics View More

August Temperature

Alva Beach (102km)

  • Lowest 6 August, 2026

    12.6 °C

  • Average August

    20.4 °C

  • Highest 11 August, 2026

    26.8 °C

Climate (2021–2026)

Alva Beach (102km)

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  • Average Low 2021–2026

    21.2 °C

  • Average 2021–2026

    24.7 °C

  • Average High 2021–2026

    28.2 °C
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