Castle Bay Weather Forecast
- 12
- 26
Mostly sunny
- 13
- 28
Mostly sunny
- 15
- 27
Mostly sunny
- 14
- 25
Mostly sunny
- 15
- 24
Partly cloudy
- 14
- 22
Showers
- 13
- 20
Showers
Today 15 Nov South West
Partly cloudy. Winds easterly 15 to 25 km/h.
Bunbury Geographe Coastal Waters
Dawesville to Cape Naturaliste- Wind
- Southeasterly 15 to 20 knots turning easterly in the late evening. Winds reaching up to 25 knots offshore in the late evening.
- Seas
- Around 1 metre.
- 1st Swell
- Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
- Weather
- Sunny.
- Weather Situation
- A trough and associated low pressure system extend from the northern parts of the South West Land Division, across the Gascoyne to the Interior. Meanwhile, a high pressure system in the Bight will weaken and move east on Monday night, allowing the trough to extend into southwest WA on Tuesday. The trough and low pressure system will move east on Wednesday and Thursday, ahead of an approaching cold front.
Castle Bay Temperature Statistics View More
November Temperature
Cape Naturaliste (8 km)
Lowest 4 November, 2026
9.2 °CAverage November
16.3 °CHighest 13 November, 2026
25 °C
Climate (2021–2026)
Cape Naturaliste (8 km)
Average Low 2021–2026
13.3 °CAverage 2021–2026
17.2 °CAverage High 2021–2026
22.7 °C