Koombana Beach Weather Forecast
- 17
- 27
Partly cloudy
- 16
- 26
Partly cloudy
- 15
- 31
Cloud clearing
- 14
- 30
Sunny
- 13
- 27
Partly cloudy
- 11
- 29
Mostly sunny
- 12
- 29
Sunny
Today 16 Dec Bunbury
Partly cloudy. Winds westerly 15 to 25 km/h becoming light in the late evening.
Bunbury Geographe Coastal Waters
Dawesville to Cape Naturaliste- Wind
- Variable below 10 knots becoming west to southwesterly 10 to 15 knots in the middle of the day. Winds reaching up to 20 knots offshore in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
- Weather
- Partly cloudy. Patchy fog this morning with reduced visibility.
- Weather Situation
- A deep trough near the west coast is slowly moving inland as a high pressure system in the Bight moves east. The trough will move further inland today across the South West Land Division ahead of a weak cold front brushing the south coast. A new ridge building across the southwest coast by Wednesday will extend along southern WA on Thursday. A new west coast trough will form on Friday.
Koombana Beach Temperature Statistics View More
December Temperature
Bunbury (4km)
Lowest 4 December, 2025
9.5 °CAverage December
21.8 °CHighest 14 December, 2025
37.7 °C
Climate (2020–Present)
Bunbury (4km)
Average Low 2020–2025
11.8 °CAverage 2020–2025
17.5 °CAverage High 2020–2025
23.7 °C