The Basin Weather Forecast

    • 14
    • 19

    Cloudy

    • 14
    • 17

    Showers

    • 12
    • 17

    Showers

    • 13
    • 17

    Showers easing

    • 10
    • 17

    Mostly sunny

    • 11
    • 18

    Sunny

    • 12
    • 19

    Mostly sunny

Today 18 Jul Lower West

Partly cloudy. Slight chance of a shower. Winds westerly 20 to 30 km/h becoming light in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Westerly 15 to 20 knots decreasing to about 10 knots in the evening.
Seas
1 to 1.5 metres, decreasing below 1 metre by early evening.
1st Swell
Westerly 3 to 4 metres.
Weather
Cloudy.
Weather Situation
A weak ridge will slowly push over the central west coast north of the local waters over the weekend with a series of cold fronts moving along the south coast south of the ridge until early next week. The ridge will then be pushed south and strengthen mid next week.
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

    15.8 °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