Castor Reef Weather Forecast

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Today 23 Sep Herbert and Lower Burdekin

Partly cloudy. Medium chance of showers, becoming less likely in the late afternoon and evening. Winds easterly 25 to 35 km/h. Daytime maximum temperatures 24 to 30.

Townsville Coastal Waters

Cardwell to Bowen
Wind
Easterly 15 to 20 knots, reaching up to 25 knots south of Cape Bowling Green during the afternoon and evening. Winds turning southeasterly in the evening.
Seas
1 to 1.5 metres.
1st Swell
Easterly around 1 metre outside the reef.
Weather
Partly cloudy. 50% chance of showers.
Weather Situation
A strengthening ridge extends across the northern Queensland waters from a high [1035 hPa] drifting east over southeastern Australia. The high will move into the Tasman Sea from Wednesday, maintaining a firm ridge for several days.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Castor Reef Temperature Statistics View More

September Temperature

Alva Beach (102km)

  • Lowest 21 September, 2026

    14.4 °C

  • Average September

    21.8 °C

  • Highest 7 September, 2026

    28.1 °C

Climate (2021–2026)

Alva Beach (102km)

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  • Average Low 2021–2026

    21.1 °C

  • Average 2021–2026

    24.7 °C

  • Average High 2021–2026

    28.2 °C
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