Monday Rock Weather Forecast

    • 16
    • 27

    Clear

    • 19
    • 26

    Windy. Sunny

    • 18
    • 27

    Very windy. Cloud clearing

    • 15
    • 25

    Windy. Sunny

    • 17
    • 27

    Windy. Sunny

    • 18
    • 28

    Sunny

    • 21
    • 30

    Sunny

Today 18 Dec Lower West

Clear. Winds southeasterly 20 to 30 km/h increasing to 25 to 35 km/h in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 15 to 25 knots turning southeasterly 15 to 20 knots in the evening.
Seas
1.5 to 2 metres.
1st Swell
Southwesterly below 1 metre.
Weather
Clear.
Weather Situation
A west coast trough will form on Friday and move inland during the day, ahead of a new ridge developing on Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Monday Rock Temperature Statistics View More

December Temperature

Rottnest Island (4km)

  • Lowest 4 December, 2025

    16.7 °C

  • Average December

    21.6 °C

  • Highest 14 December, 2025

    37.1 °C

Climate (2020–Present)

Rottnest Island (4km)

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  • Average Low 2020–2025

    16.1 °C

  • Average 2020–2025

    19 °C

  • Average High 2020–2025

    22.8 °C
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