The Basin Weather Forecast

    • 13
    • 19

    Mostly sunny

    • 15
    • 20

    Sunny day. Late shower or two

    • 13
    • 17

    Shower or two

    • 10
    • 18

    Sunny

    • 13
    • 19

    Possible shower

    • 14
    • 19

    Showers

    • 14
    • 19

    Showers

Today 30 Jul Lower West

Mostly sunny. Winds northeasterly 15 to 20 km/h tending northerly in the middle of the day then becoming light in the early afternoon. Daytime maximum temperatures between 19 and 22.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Northeasterly 10 to 15 knots turning north to northwesterly below 10 knots in the middle of the day.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Mostly sunny.
Weather Situation
A ridge lies to the south, weakening on Friday ahead of the next cold front moving over the area later Friday and early Saturday morning. A ridge will rapidly developing in the wake of the cold front over the weekend.
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

    15.3 °C

  • Highest 15 July, 2026

    21.8 °C

Climate (2021–2026)

Rottnest Island (3km)

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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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