Dunsborough Weather Forecast

    • 15
    • 22

    Showers increasing

    • 13
    • 19

    Showers easing. Windy

    • 13
    • 20

    Partly cloudy

    • 11
    • 20

    Partly cloudy

    • 11
    • 21

    Shower or two

    • 10
    • 21

    Partly cloudy

    • 10
    • 20

    Possible shower

Today 18 Sep South West

Partly cloudy. Patchy morning fog. Very high chance of showers, most likely in the afternoon and evening. The chance of a thunderstorm near the coast in the evening. Winds north to northwesterly and light increasing to 20 to 30 km/h in the morning then increasing to 25 to 35 km/h in the late evening. Overnight temperatures falling to around 12 with daytime temperatures reaching the low to mid 20s.

Bunbury Geographe Coastal Waters

Dawesville to Cape Naturaliste
Wind
Northerly 15 to 20 knots tending northwesterly 15 to 25 knots in the early afternoon then increasing to 20 to 30 knots in the evening. Winds reaching up to 35 knots in the late evening.
Seas
Around 1 metre, increasing to 1 to 2 metres during the morning.
1st Swell
Southwesterly 1.5 to 2 metres, tending westerly 1.5 to 2.5 metres during the morning.
Weather
Becoming cloudy. 95% chance of showers. The chance of a thunderstorm in the late afternoon and evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dunsborough Temperature Statistics View More

September Temperature

Cape Naturaliste (12km)

  • Lowest 7 September, 2026

    8.8 °C

  • Average September

    15.4 °C

  • Highest 16 September, 2026

    25.4 °C

Climate (2021–2026)

Cape Naturaliste (12km)

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  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    17.2 °C

  • Average High 2021–2026

    22.7 °C
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