Castor Reef Weather Forecast
- 21
- 22
Clear
- 21
- 22
Sunny
- 22
- 23
Shower
- 22
- 23
Shower
- 22
- 23
Shower
- 22
- 23
Shower
- 23
- 23
Shower
Today 18 Jul Herbert and Lower Burdekin
Clear. Winds east to southeasterly 15 to 20 km/h becoming light in the late afternoon.
Townsville Coastal Waters
Cardwell to Bowen- Wind
- Southeasterly 15 to 20 knots, reaching up to 25 knots offshore south of Cape Bowling Green in the late afternoon.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres outside the reef.
- 1st Swell
- East to southeasterly below 1 metre, increasing to around 1 metre outside the reef.
- Weather
- Clear.
- Weather Situation
- A firm ridge of high pressure extends over the northern Queensland waters from a high [1034 hPa] centred over southeastern Australia. The ridge will slowly relax over coming days as the high slowly weakens in place.
Castor Reef Temperature Statistics View More
July Temperature
Alva Beach (102km)
Lowest 17 July, 2026
10.3 °CAverage July
20.5 °CHighest 4 July, 2026
25.8 °C
Climate (2021–2026)
Alva Beach (102km)
Average Low 2021–2026
21.2 °CAverage 2021–2026
24.7 °CAverage High 2021–2026
28.2 °C