Portland Harbour Weather Forecast

    • 7
    • 21

    Showers

    • 12
    • 17

    Cloudy

    • 9
    • 23

    Mostly sunny

    • 15
    • 22

    Possible shower

    • 10
    • 21

    Partly cloudy

    • 13
    • 26

    Partly cloudy

    • 15
    • 22

    Shower or two

Today 19 Apr South West

Partly cloudy. Areas of frost and the chance of fog in the east in the morning. High chance of showers in the west, medium chance elsewhere. The chance of a thunderstorm in the west in the morning and afternoon. Winds northerly 15 to 20 km/h becoming light in the evening. Daytime maximum temperatures between 19 and 23.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northeasterly 10 to 15 knots, reaching up to 20 knots in the far west early in the morning. Winds shifting southwesterly in the evening.
Seas
Around 1 metre.
1st Swell
Southerly 1.5 to 2.5 metres, decreasing to 1.5 metres during the afternoon.
Weather
Partly cloudy. 70% chance of showers. The chance of a thunderstorm in the west in the morning.
Weather Situation
A high pressure system directs cool southerly flow across the state. This high pressure system will gradually move across the state on the weekend ahead of a weakening trough later on Sunday. A high pressure system will move south of Tasmanian early next week maintaining a ridge over Victoria.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Harbour Temperature Statistics View More

April Temperature

Cape Nelson Lighthouse (11km)

  • Lowest 8 April, 2026

    9.4 °C

  • Average April

    14.8 °C

  • Highest 9 April, 2026

    21.4 °C

Climate (2021–Present)

Cape Nelson Lighthouse (11km)

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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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