Portland Harbour Weather Forecast

    • 6
    • 13

    Showers easing. Wind easing

    • 9
    • 13

    Shower or two

    • 8
    • 13

    Cloudy

    • 3
    • 15

    Sunny

    • 5
    • 14

    Partly cloudy

    • 6
    • 15

    Possible shower

    • 7
    • 14

    Possible shower

Today 3 Jul South West

Cloudy. Very high chance of showers, most likely in the morning and afternoon. Snow falling above 900 metres. The chance of a thunderstorm near the coast in the early morning, possibly severe with damaging winds. Winds northwesterly 25 to 35 km/h tending northwest to southwesterly 25 to 40 km/h before dawn then tending westerly 20 to 30 km/h in the late afternoon. Overnight temperatures falling to around 6 with daytime temperatures reaching around 12.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
West to northwesterly 25 to 30 knots, reaching up to 35 knots during the morning. Winds turning southwesterly 20 to 30 knots early in the morning.
Seas
3 to 4 metres, decreasing to 1.5 to 2.5 metres during the afternoon.
1st Swell
Westerly 5 to 7 metres, tending southwesterly 5 to 6 metres around midday.
Weather
Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the early morning.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Harbour Temperature Statistics View More

July Temperature

Cape Nelson Lighthouse (11km)

  • Lowest 1 July, 2026

    10.5 °C

  • Average July

    12.3 °C

  • Highest 1 July, 2026

    17.4 °C

Climate (2021–2026)

Cape Nelson Lighthouse (11km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.6 °C
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