The Basin Weather Forecast

    • 12
    • 17

    Partly cloudy

    • 11
    • 20

    Sunny

    • 15
    • 22

    Sunny

    • 16
    • 21

    Showers

    • 15
    • 19

    Showers. Becoming windy

    • 14
    • 18

    Showers. Windy

    • 14
    • 17

    Showers

Today 13 Jul Lower West

Mostly sunny. The chance of fog in the morning, mainly in the south. Light winds. Daytime maximum temperatures between 16 and 19.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Easterly below 10 knots becoming south to southeasterly in the middle of the day then becoming easterly in the late evening.
Seas
Below 0.5 metres.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A ridge will remain to the south until mid next week. A trough will extend off the coast during today. A cold front will approach later Thursday.
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 9 July, 2026

    20.7 °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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