Castor Reef Weather Forecast

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    Partly cloudy

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    Partly cloudy

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    Shower

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    Shower

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    Shower

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    Shower

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    Storm

Today 21 Dec Herbert and Lower Burdekin

Partly cloudy. The chance of fog early this morning, mainly inland. Slight chance of a shower. The chance of a thunderstorm in the north late this afternoon and evening. Light winds becoming northeasterly 15 to 25 km/h in the middle of the day then becoming light in the late evening. Daytime maximum temperatures 31 to 36.

Townsville Coastal Waters

Cardwell to Bowen
Wind
Easterly about 10 knots becoming north to northeasterly in the late evening.
Seas
Below 1 metre.
1st Swell
Easterly around 1 metre outside the reef.
Weather
Mostly sunny.
Weather Situation
A high [1014 hPa] northwest of New Zealand extends a weakening ridge over north Queensland waters. A trough in the northern Coral Sea will gradually drift westwards.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Castor Reef Temperature Statistics View More

December Temperature

Alva Beach (102km)

  • Lowest 6 December, 2025

    21.1 °C

  • Average December

    27.7 °C

  • Highest 1 December, 2025

    33.3 °C

Climate (2020–Present)

Alva Beach (102km)

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  • Average Low 2020–2025

    21.2 °C

  • Average 2020–2025

    24.7 °C

  • Average High 2020–2025

    28.2 °C
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