Casuarina Boat Harbour Weather Forecast
- 11
- 18
Shower or two. Windy
- 11
- 20
Partly cloudy
- 10
- 20
Partly cloudy
- 9
- 20
Partly cloudy
- 10
- 20
Mostly sunny
- 9
- 20
Shower or two
- 10
- 19
Shower or two
Today 19 Sep Bunbury
Cloudy. Medium chance of showers. Winds westerly 30 to 45 km/h decreasing to 15 to 20 km/h in the late evening.
Bunbury Geographe Coastal Waters
Dawesville to Cape Naturaliste- Wind
- Westerly 15 to 25 knots decreasing to 10 to 15 knots in the late evening.
- Seas
- 2 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Westerly 3 to 5 metres.
- Weather
- Cloudy.
- Caution
- Large and powerful surf conditions from midday are expected to be hazardous for coastal activities such as swimming, surfing and rock fishing.
- Weather Situation
- A cold front moves east across the south coast today. A new ridge moves over the southwest on Sunday before a cold front passes to the south of the State on Monday, moving east along the south coast on Tuesday.
Casuarina Boat Harbour Temperature Statistics View More
September Temperature
Bunbury (5km)
Lowest 1 September, 2026
5 °CAverage September
15.4 °CHighest 16 September, 2026
27.4 °C
Climate (2021–2026)
Bunbury (5km)
Average Low 2021–2026
11.7 °CAverage 2021–2026
17.5 °CAverage High 2021–2026
23.7 °C