Discovery Bay Weather Forecast

    • 6
    • 20

    Mostly sunny

    • 13
    • 22

    Sunny

    • 13
    • 22

    Shower or two. Windy

    • 10
    • 13

    Partly cloudy

    • 6
    • 16

    Mostly sunny

    • 7
    • 19

    Partly cloudy

    • 10
    • 21

    Shower or two

Today 18 Sep South West

Mostly sunny. The chance of fog and frost in the east in the early morning. Winds northerly 15 to 20 km/h turning northwesterly 20 to 30 km/h during the morning. Overnight temperatures falling to around 3 with daytime temperatures reaching around 20.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northwesterly 15 to 20 knots increasing to 20 to 25 knots in the morning. Winds reaching up to 30 knots offshore during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
1st Swell
Southwesterly 3 metres.
Weather
Mostly sunny.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Discovery Bay Temperature Statistics View More

September Temperature

Portland Airport (12km)

  • Lowest 8 September, 2026

    2.1 °C

  • Average September

    11.5 °C

  • Highest 13 September, 2026

    22.1 °C

Climate (2021–2026)

Portland Airport (12km)

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  • Average Low 2021–2026

    9.7 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    18.2 °C
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