The Basin Weather Forecast

    • 15
    • 20

    Showers. Windy

    • 12
    • 17

    Shower or two

    • 10
    • 17

    Partly cloudy

    • 10
    • 19

    Mostly sunny

    • 13
    • 19

    Sunny

    • 14
    • 20

    Shower or two

    • 12
    • 17

    Shower or two

Today 26 Jul Lower West

Cloudy. Very high chance of showers, becoming less likely in the early afternoon. Winds north to northwesterly 20 to 30 km/h shifting southwesterly 25 to 35 km/h in the morning then becoming light in the evening. Daytime maximum temperatures between 15 and 19.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
West to northwesterly 20 to 25 knots turning south to southwesterly 10 to 15 knots during the day.
Seas
1.5 to 2 metres, decreasing to 1 metre by early evening.
1st Swell
West to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2 metres around midday, then tending southwesterly 2 to 3 metres during the afternoon.
Weather
Cloudy. 95% chance of showers.
Weather Situation
A cold front moves through this morning. A new ridge develops to the south during Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

The Basin Temperature Statistics View More

July Temperature

Rottnest Island (3km)

  • Lowest 1 July, 2026

    9.9 °C

  • Average July

    15.4 °C

  • Highest 15 July, 2026

    21.8 °C

Climate (2021–2026)

Rottnest Island (3km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
Get WillyWeather+ to remove ads