Nancy Cove Weather Forecast

    • 14
    • 20

    Possible shower

    • 15
    • 20

    Showers. Becoming windy

    • 12
    • 17

    Showers easing. Wind easing

    • 11
    • 18

    Partly cloudy

    • 11
    • 19

    Sunny

    • 13
    • 20

    Sunny

    • 15
    • 20

    Shower or two

Today 25 Aug Lower West

Partly cloudy. The chance of morning fog in the north. Medium chance of showers in the south, most likely in the afternoon and evening. Near zero chance of rain elsewhere. Winds northerly 15 to 25 km/h tending northwesterly 20 to 30 km/h in the middle of the day then becoming light in the late evening. Overnight temperatures falling to between 5 and 9 with daytime temperatures reaching between 19 and 22.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Northwesterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the morning.
1st Swell
West to southwesterly 1.5 to 2 metres, decreasing to 1.5 metres during the morning, then increasing to 1.5 to 2 metres around midday.
Weather
Partly cloudy.
Weather Situation
A high over southern WA extends a ridge through the local waters. Winds will tend more northwesterly today as the high moves into South Australia and a slow-moving cold front approaches the South West. This front will pass through the local waters later on Wednesday, with a new ridge strengthening across the west coast on Thursday and Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nancy Cove Temperature Statistics View More

August Temperature

Rottnest Island (1km)

  • Lowest 9 August, 2026

    7.4 °C

  • Average August

    15.5 °C

  • Highest 16 August, 2026

    23.2 °C

Climate (2021–2026)

Rottnest Island (1km)

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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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