Johanna Beach Weather Forecast

    • 12
    • 15

    Rain. Wind easing

    • 10
    • 15

    Showers increasing

    • 10
    • 14

    Showers

    • 11
    • 14

    Shower or two

    • 9
    • 15

    Cloudy

    • 10
    • 16

    Shower or two

    • 10
    • 13

    Showers

Today 19 Aug South West

Cloudy. Very high chance of rain, becoming less likely late this afternoon and evening. The chance of a thunderstorm this morning. Winds northerly 30 to 45 km/h turning northwesterly 20 to 30 km/h in the early afternoon. Daytime maximum temperatures between 14 and 17.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northerly 20 to 25 knots, reaching up to 30 knots offshore during the day. Winds turning northwesterly 15 to 25 knots in the middle of the day.
Seas
1 to 2 metres, increasing to 2 to 3 metres offshore.
1st Swell
Southwesterly 2 metres.
Weather
Cloudy. Near 100% chance of rain. The chance of a thunderstorm during the morning and afternoon.
Weather Situation
A large high pressure system over the Tasman Sea is responsible for northerly winds across Victoria. A weak front will move across the state later today. A ridge of high pressure will become established over the north with further weak features passing to the south in a broad westerly flow. A high pressure system is expected to be centred over the state on the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Johanna Beach Temperature Statistics View More

August Temperature

Cape Otway (15km)

  • Lowest 1 August, 2026

    6.4 °C

  • Average August

    11.4 °C

  • Highest 2 August, 2026

    16.4 °C

Climate (2021–2026)

Cape Otway (15km)

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  • Average Low 2021–2026

    11.7 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.5 °C
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