Portland Weather Forecast

    • 15
    • 19

    Shower or two

    • 13
    • 18

    Partly cloudy

    • 11
    • 22

    Sunny

    • 15
    • 35

    Sunny

    • 16
    • 21

    Partly cloudy

    • 13
    • 24

    Sunny

    • 16
    • 27

    Partly cloudy

Today 21 Jan South West

Partly cloudy. High chance of showers near the Otways, medium chance elsewhere. Winds southerly 20 to 30 km/h increasing to 25 to 35 km/h in the late afternoon. Daytime maximum temperatures 21 to 26.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southeasterly 10 to 15 knots turning southerly 15 to 25 knots during the morning.
Seas
Around 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Becoming cloudy.
Weather Situation
A high pressure system moves into waters south of the Bight and extends a ridge over western Victoria tonight and more broadly over the state on Thursday. The high then moves into the Tasman Sea on Friday, followed by a trough of low pressure over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portland Temperature Statistics View More

January Temperature

Cape Nelson Lighthouse (10km)

  • Lowest 6 January, 2026

    11.4 °C

  • Average January

    16.7 °C

  • Highest 7 January, 2026

    32.6 °C

Climate (2021–Present)

Cape Nelson Lighthouse (10km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.5 °C
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