Success Harbour Entrance Weather Forecast

    • 11
    • 19

    Rain. Becoming windy

    • 7
    • 15

    Showers

    • 9
    • 17

    Showers

    • 10
    • 17

    Showers

    • 7
    • 15

    Shower or two

    • 6
    • 15

    Partly cloudy

    • 6
    • 17

    Sunny

Today 20 Jul Perth

Cloudy. Very high chance of rain. The chance of a thunderstorm in the afternoon, possibly severe. Winds northwesterly 30 to 45 km/h shifting south to southwesterly in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Northwesterly 25 to 30 knots, reaching up to 35 knots in the late afternoon. Winds shifting southerly 20 to 30 knots in the evening.
Seas
2 to 3 metres.
1st Swell
West to southwesterly 2 to 3 metres.
Weather
Cloudy. Near 100% chance of rain. The chance of a thunderstorm in the 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 located nearby is moving east. A strong cold front will cross the Local Waters later this afternoon or early evening. A new ridge will develop to the north of the Local Waters on Monday, 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

Success Harbour Entrance Temperature Statistics View More

July Temperature

Swanbourne (12km)

  • Lowest 11 July, 2025

    4.9 °C

  • Average July

    13.9 °C

  • Highest 6 July, 2025

    21.5 °C

Climate (2020–Present)

Swanbourne (12km)

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  • Average Low 2020–2025

    14.6 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    24.3 °C
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