Mosman Beach Weather Forecast
- 8
- 19
Partly cloudy
- 10
- 20
Showers increasing
- 11
- 19
Shower or two
- 10
- 20
Mostly sunny
- 10
- 20
Mostly sunny
- 12
- 19
Showers
- 10
- 17
Shower or two
Today 4 Jul Perth
Partly cloudy. Light winds becoming northeasterly 15 to 20 km/h in the late evening.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Northeasterly about 10 knots increasing to 10 to 15 knots in the evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 1 to 1.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system in the Bight extends a ridge over the south coast, directing north to northeasterly winds over the local waters. A cold front will cross the local waters during Sunday evening. A ridge in the Southern Ocean will renew east to southeasterly winds from Monday.
Mosman Beach Temperature Statistics View More
July Temperature
Swanbourne (7km)
Lowest 4 July, 2026
8.5 °CAverage July
13.2 °CHighest 2 July, 2026
16.1 °C
Climate (2021–2026)
Swanbourne (7km)
Average Low 2021–2026
14.5 °CAverage 2021–2026
18.8 °CAverage High 2021–2026
24.3 °C