Salmon Bay Weather Forecast
- 14
- 19
Partly cloudy
- 14
- 19
Showers increasing
- 14
- 19
Showers easing
- 13
- 18
Cloud clearing
- 13
- 19
Sunny
- 14
- 19
Sunny
- 15
- 19
Partly cloudy
Today 28 Sep Lower West
Partly cloudy. Slight chance of a shower. Winds southwesterly 15 to 20 km/h becoming light in the late evening.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Southwesterly 15 to 20 knots turning southerly 10 to 15 knots in the evening.
- Seas
- 1 to 1.5 metres.
- 1st Swell
- Southwesterly 1 to 1.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A trough lies over southwest WA with a connected low south of the state. The trough is moving east as a ridge extends over the west coast. A cold front will cross the southwest corner of the state overnight on Tuesday with a ridge then dominating the synoptic pattern for the remainder of the working week.
Salmon Bay Temperature Statistics View More
September Temperature
Rottnest Island (1km)
Lowest 9 September, 2026
11.5 °CAverage September
16.6 °CHighest 16 September, 2026
27.8 °C
Climate (2021–2026)
Rottnest Island (1km)
Average Low 2021–2026
16.1 °CAverage 2021–2026
18.9 °CAverage High 2021–2026
22.8 °C