Siesta Park Weather Forecast

    • 10
    • 18

    Rain. Becoming windy

    • 5
    • 14

    Possible shower

    • 7
    • 16

    Showers increasing

    • 9
    • 15

    Showers

    • 5
    • 14

    Shower or two

    • 5
    • 15

    Cloudy

    • 6
    • 15

    Shower or two

Today 20 Jul Busselton

Cloudy. Very high chance of rain, becoming less likely in the evening. The chance of a thunderstorm in the morning and afternoon. Damaging winds possible. Winds west to northwesterly 30 to 40 km/h shifting southerly 35 to 45 km/h in the late afternoon then decreasing to 25 to 35 km/h in the evening.

Bunbury Geographe Coastal Waters

Dawesville to Cape Naturaliste
Wind
West to northwesterly 25 to 30 knots, reaching up to 35 knots offshore in the late morning and afternoon. Winds shifting southerly in the late afternoon.
Seas
2 to 3 metres, increasing to 2.5 to 4 metres offshore.
1st Swell
Southwesterly 2 to 3 metres inshore, increasing to 2.5 to 4 metres offshore.
Weather
Cloudy. Near 100% chance of rain. The chance of a thunderstorm in the morning and afternoon, possibly severe.
Caution
Large and powerful surf conditions from the late morning are expected to be hazardous for coastal activities such as swimming, surfing and rock fishing.
Weather Situation
A ridge extending over southern parts of the State is moving east. A strong cold front will cross the South West Land Division during this afternoon and evening and will continue east across southern WA on Monday. A new ridge will follow in the wake of the front across the central WA coast, maintaining a westerly flow across the southwest coast. Another cold front will move through southwest WA on Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Siesta Park Temperature Statistics View More

July Temperature

Busselton Airport (18km)

  • Lowest 13 July, 2025

    3.1 °C
  • Average July

    12.4 °C
  • Highest 1 July, 2025

    20.4 °C

Climate (2020–Present)

Busselton Airport (18km)

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  • Average Low 2020–2025

    10.7 °C
  • Average 2020–2025

    16.7 °C
  • Average High 2020–2025

    23.6 °C
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