Portland Harbour Weather Forecast

    • 8
    • 15

    Showers

    • 6
    • 17

    Possible shower

    • 9
    • 15

    Showers

    • 6
    • 12

    Showers

    • 4
    • 14

    Showers

    • 7
    • 14

    Shower or two

    • 7
    • 14

    Shower or two

Today 11 Jul South West

Partly cloudy. High chance of showers, becoming less likely late this afternoon and evening. Winds northwesterly 20 to 30 km/h tending westerly in the middle of the day then becoming light in the evening. Daytime maximum temperatures around 14.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 15 to 25 knots, reaching up to 30 knots during the morning and early afternoon. Winds decreasing to 10 to 15 knots in the evening.
Seas
2 to 3 metres, decreasing to 1 to 1.5 metres by early evening.
1st Swell
Westerly 4 metres, tending southwesterly 4 metres around midday.
Weather
Partly cloudy. 80% chance of showers.
Weather Situation
A front is forecast to cross Victorian coastal waters during today before a high pressure system crosses NSW and extends a ridge over Bass Strait on Saturday. Northwesterly winds will freshen on Sunday ahead of a cold front that is forecast to enter the western Bass Strait during the afternoon before reaching eastern waters at night. Another cold front will approach from the west on Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Harbour Temperature Statistics View More

July Temperature

Cape Nelson Lighthouse (11km)

  • Lowest 3 July, 2025

    5.7 °C
  • Average July

    11 °C
  • Highest 7 July, 2025

    16.5 °C

Climate (2020–Present)

Cape Nelson Lighthouse (11km)

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  • Average Low 2020–2025

    11.8 °C
  • Average 2020–2025

    14.3 °C
  • Average High 2020–2025

    17.7 °C
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