Portland Offshore Weather Forecast

    • 10
    • 17

    Cloudy

    • 10
    • 17

    Showers

    • 6
    • 15

    Showers

    • 10
    • 16

    Showers easing

    • 10
    • 16

    Shower or two

    • 10
    • 16

    Shower or two

    • 10
    • 17

    Possible shower

Today 5 May South West

Cloudy. Slight chance of a shower near the coast, near zero chance elsewhere. Winds westerly 15 to 20 km/h becoming light in the evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 10 to 15 knots turning northwesterly in the late evening. Winds reaching up to 20 knots in the west in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 2.5 metres.
Weather
Cloudy.
Weather Situation
A weak ridge of high pressure extending over Victoria will be cleared on Wednesday as a cold front crosses over Victoria. This front is expected to develop a low pressure system off the east coast on Thursday which will move into the Tasman Sea on Friday. The high pressure ridge will begin to redevelop from the west on the weekend with the high pressure centre sitting well south of the Bight.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

May Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 3 May, 2026

    12.2 °C

  • Average May

    17.7 °C

  • Highest 1 May, 2026

    28.1 °C

Climate (2021–Present)

Cape Nelson Lighthouse (9km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.6 °C
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