Portland Offshore Weather Forecast

    • 7
    • 12

    Shower or two

    • 6
    • 14

    Shower or two clearing

    • 4
    • 14

    Cloudy

    • 5
    • 15

    Showers increasing

    • 6
    • 12

    Showers

    • 7
    • 13

    Shower or two

    • 7
    • 13

    Possible shower

Today 30 Jul South West

Cloudy. Medium chance of showers, becoming less likely in the late afternoon and evening. Winds west to southwesterly 15 to 20 km/h becoming light in the late afternoon. Daytime maximum temperatures around 12.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
West to southwesterly 10 to 15 knots decreasing to about 10 knots in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Cloudy. 50% chance of showers.
Weather Situation
A large high pressure system situated in the Bight extends a ridge over Victoria. The high pressure centre will slowly cross the north on Friday before moving into the Tasman Sea on the weekend, continuing to extend a ridge over the state. This ridge will begin to weaken as a cold front approaches the western border late on Sunday, crossing the state on Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

July Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 19 July, 2026

    3.4 °C

  • Average July

    11.4 °C

  • Highest 1 July, 2026

    17.4 °C

Climate (2021–2026)

Cape Nelson Lighthouse (9km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.6 °C
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