Castle Bay Weather Forecast
- 12
- 26
Mostly sunny
- 12
- 27
Sunny
- 14
- 28
Sunny
- 15
- 25
Mostly sunny
- 12
- 23
Partly cloudy
- 12
- 23
Partly cloudy
- 12
- 22
Partly cloudy
Today 9 Nov South West
Mostly sunny. Winds southeasterly 20 to 30 km/h.
Bunbury Geographe Coastal Waters
Dawesville to Cape Naturaliste- Wind
- Southerly 15 to 25 knots, reaching up to 30 knots offshore in the evening. Winds turning southeasterly 20 to 25 knots in the evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres during the afternoon, then increasing to 1 to 2 metres by early evening.
- 1st Swell
- Southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
- Weather
- Sunny.
- Weather Situation
- A firm ridge of high pressure extends over southern WA as a trough deepens along the west coast, leading to fresh winds about parts of the west and southwest coasts this weekend and early next week. The trough persists until mid-week, then moving inland on Wednesday.
Castle Bay Temperature Statistics View More
November Temperature
Cape Naturaliste (8km)
Lowest 2 November, 2025
8.7 °CAverage November
16 °CHighest 4 November, 2025
25.9 °C
Climate (2020–Present)
Cape Naturaliste (8km)
Average Low 2020–2025
13.3 °CAverage 2020–2025
17.2 °CAverage High 2020–2025
22.7 °C