Dyer Island Weather Forecast

    • 15
    • 20

    Sunny day. Late shower or two

    • 13
    • 17

    Showers easing

    • 10
    • 18

    Sunny

    • 13
    • 19

    Mostly sunny

    • 14
    • 18

    Showers

    • 15
    • 18

    Showers

    • 13
    • 19

    Showers

Today 31 Jul Lower West

Mostly sunny. Patches of frost early this morning. Patchy fog early this morning, mainly inland. High chance of showers in the south, slight chance elsewhere. Light winds becoming north to northwesterly 15 to 20 km/h in the middle of the day then tending west to northwesterly in the early afternoon. Daytime maximum temperatures in the low 20s.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Northwest to northeasterly 10 to 15 knots tending west to northwesterly 15 to 20 knots in the early afternoon then tending west to southwesterly in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Weather
Mostly sunny. 70% chance of showers.
Weather Situation
A ridge over local waters is slowly weakening. A weak cold front will move through this evening, followed by a new ridge over the weekend. A trough will develop along the west coast on Monday in association with a cloud band.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dyer Island Temperature Statistics View More

July Temperature

Rottnest Island (4km)

  • Lowest 1 July, 2026

    9.9 °C

  • Average July

    15.4 °C

  • Highest 15 July, 2026

    21.8 °C

Climate (2021–2026)

Rottnest Island (4km)

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  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
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