Perth FAD2 (offshore) Weather Forecast

    • 22
    • 23

    Fog

    • 21
    • 22

    Fog

    • 20
    • 21

    Windy

    • 19
    • 23

    Windy

    • 20
    • 22

    Windy

    • 20
    • 21

    Windy

    • 19
    • 21

    Windy

Today 15 Dec Lower West

Mostly sunny. The chance of a thunderstorm inland. The chance of smoke haze inland later this evening. Winds west to southwesterly 20 to 30 km/h becoming light in the evening.

Perth Coastal Waters

Two Rocks to Dawesville, offshore from Rottnest Island
Wind
West to northwesterly below 10 knots becoming south to southwesterly in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Partly cloudy. The chance of fog later this evening 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 on Tuesday 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.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Perth FAD2 (offshore) Temperature Statistics View More

December Temperature

Rottnest Island (48km)

  • Lowest 4 December, 2025

    16.7 °C

  • Average December

    21.3 °C

  • Highest 1 December, 2025

    36.2 °C

Climate (2020–Present)

Rottnest Island (48km)

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  • Average Low 2020–2025

    16.1 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    22.8 °C
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