Swan River - Pier 21 Marina Weather Forecast

    • 15
    • 22

    Showers. Very windy

    • 13
    • 20

    Showers easing. Wind easing

    • 14
    • 21

    Showers

    • 12
    • 19

    Shower or two

    • 10
    • 19

    Partly cloudy

    • 9
    • 21

    Mostly sunny

    • 11
    • 21

    Shower or two

Today 31 May Perth

Cloudy. Very high chance of showers. Damaging winds likely, possibly destructive with showers in the afternoon and evening. Winds northwesterly 35 to 50 km/h tending westerly 40 to 60 km/h in the morning.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Westerly 35 to 45 knots, reaching up to 50 knots in the evening.
Seas
4 to 6 metres.
1st Swell
Westerly 2.5 to 3 metres, increasing to 4 to 6 metres during the afternoon.
Weather
Cloudy. Near 100% chance of showers.
Caution
Large and powerful surf conditions this afternoon and evening are expected to be hazardous for coastal activities such as swimming, surfing and rock fishing. Tides are likely to rise above the normal high tide mark.
Weather Situation
A deep low pressure system will move close to the South West Capes later Sunday afternoon and evening. Strong to gale force winds are expected throughout Sunday, easing early Monday morning. Another weaker cold front moves through on Tuesday with a new ridge to lie over the area on Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan River - Pier 21 Marina Temperature Statistics View More

May Temperature

Swanbourne (8km)

  • Lowest 24 May, 2026

    6.1 °C

  • Average May

    16.1 °C

  • Highest 11 May, 2026

    26.9 °C

Climate (2021–Present)

Swanbourne (8km)

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  • Average Low 2021–2026

    14.5 °C

  • Average 2021–2026

    18.8 °C

  • Average High 2021–2026

    24.3 °C
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