Portland Offshore Weather Forecast

    • 5
    • 14

    Shower or two

    • 4
    • 15

    Partly cloudy

    • 7
    • 15

    Showers

    • 8
    • 14

    Rain

    • 7
    • 13

    Showers easing

    • 7
    • 15

    Showers

    • 6
    • 12

    Showers. Windy

Today 6 Aug South West

Partly cloudy. Medium chance of showers, most likely in the afternoon and evening. Winds northwesterly 15 to 25 km/h becoming light in the evening. Daytime maximum temperatures around 14.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northwesterly 15 to 20 knots turning southwesterly 10 to 15 knots in the late afternoon.
Seas
1 to 1.5 metres, decreasing to 1 metre by early evening.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A low pressure system and associated trough centred over the Tasman Sea will move away from the state as a high pressure system to the north extends a ridge over the west. The ridge will slowly move eastwards across the state through to the end of the week. A weak trough will clip parts of the south during today. The high pressure system will move out over the Tasman Sea on Saturday ahead of a vigorous cold front expected to cross the state on Sunday.
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

    10.6 °C

  • Highest 2 August, 2026

    15.7 °C

Climate (2021–2026)

Cape Nelson Lighthouse (9km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.6 °C
Get WillyWeather+ to remove ads