Swan River - Rocky Bay Weather Forecast
- 18
- 32
Sunny
- 20
- 35
Sunny
- 19
- 29
Sunny
- 17
- 25
Becoming windy. Sunny
- 14
- 28
Sunny
- 16
- 30
Sunny
- 20
- 32
Sunny
Today 18 Feb Perth
Sunny. Winds northeast to southeasterly 15 to 20 km/h tending south to southwesterly 15 to 25 km/h in the early afternoon then becoming light in the late evening.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Southerly 15 to 20 knots.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Southwesterly around 1 metre.
- Weather
- Sunny.
- Weather Situation
- A west coast trough has developed, and is expected to deepen on Thursday before moving inland later in the day with a cold front passing to the south on Friday. A second cold front is expected to follow during Saturday morning, before another ridge extends over the southwest, resulting in fresh southerly winds tending fresh to strong south to southwesterly in the afternoon.
Swan River - Rocky Bay Temperature Statistics View More
February Temperature
Swanbourne (7km)
Lowest 17 February, 2026
14.2 °CAverage February
23.5 °CHighest 2 February, 2026
41.1 °C
Climate (2021–Present)
Swanbourne (7km)
Average Low 2021–2026
14.5 °CAverage 2021–2026
18.9 °CAverage High 2021–2026
24.3 °C