Portland Offshore Weather Forecast

    • 7
    • 15

    Shower or two

    • 10
    • 14

    Showers easing. Wind easing

    • 7
    • 17

    Showers increasing

    • 10
    • 15

    Showers. Windy

    • 9
    • 15

    Shower or two

    • 8
    • 15

    Morning shower or two

    • 7
    • 15

    Possible shower

Today 2 Sep South West

Cloudy. Slight chance of a shower in the south, near zero chance elsewhere. Winds northwesterly 15 to 25 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northwesterly 20 to 25 knots, reaching up to 30 knots offshore in the evening.
Seas
2 to 2.5 metres.
1st Swell
Southwesterly 3 to 4 metres, tending westerly 4 metres later in the evening.
Weather
Cloudy. 70% chance of showers.
Weather Situation
A cold front embedded in a westerly flow will clip the south of Victoria on Thursday morning, with a high pressure system to build to the north of the state in the evening. This high is expected to move over the Tasman Sea on Friday morning, with a strong cold front to approach the west of Victoria on Friday evening and cross the state on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

September Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 1 September, 2026

    9.2 °C

  • Average September

    14.1 °C

  • Highest

    –

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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