Portland Offshore Weather Forecast

    • 6
    • 14

    Partly cloudy

    • 6
    • 17

    Mostly sunny

    • 8
    • 18

    Shower or two developing

    • 11
    • 16

    Showers

    • 9
    • 16

    Showers

    • 8
    • 15

    Showers

    • 8
    • 14

    Shower or two

Today 16 Aug South West

Partly cloudy. Patchy fog in the morning, mainly in the south. Slight chance of a shower near the Otways in the early morning. Near zero chance of rain elsewhere. Light winds becoming easterly 15 to 20 km/h in the morning then becoming light in the early afternoon. Overnight temperatures falling to around 4 with daytime temperatures reaching around 16.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
East to southeasterly about 10 knots increasing to 10 to 15 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres, increasing to 2.5 to 4 metres in the east.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Offshore Temperature Statistics View More

August Temperature

Cape Nelson Lighthouse (9km)

  • Lowest 1 August, 2026

    5.6 °C

  • Average August

    11.5 °C

  • Highest 2 August, 2026

    15.7 °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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