Johanna Beach Weather Forecast

    • 9
    • 13

    Partly cloudy

    • 8
    • 14

    Partly cloudy

    • 8
    • 16

    Mostly sunny

    • 12
    • 21

    Partly cloudy

    • 15
    • 19

    Possible shower

    • 12
    • 15

    Shower or two

    • 11
    • 17

    Partly cloudy

Today 21 Sep South West

Cloudy. Slight chance of a shower near the Otways, becoming less likely this morning. Near zero chance of rain elsewhere. Winds south to southwesterly 20 to 30 km/h becoming light in the evening. Daytime maximum temperatures around 13.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 15 to 25 knots decreasing to about 10 knots in the evening.
Seas
1.5 to 2.5 metres, decreasing to 1 metre around midday.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Partly cloudy.
Weather Situation
A cool southwesterly airstream will cross Victoria today as a high pressure system moves over waters south of the Bight, reaching western Bass Strait by tonight. The high will be located over the Tasman Sea by Tuesday night, with a warm northeasterly airstream continuing on Wednesday and Thursday as the high continues moving east.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Johanna Beach Temperature Statistics View More

September Temperature

Cape Otway (15km)

  • Lowest 8 September, 2026

    5.8 °C

  • Average September

    13.2 °C

  • Highest 13 September, 2026

    24.6 °C

Climate (2021–2026)

Cape Otway (15km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.4 °C
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