Rocky Bay Weather Forecast

    • 11
    • 22

    Cloudy

    • 13
    • 21

    Cloudy

    • 12
    • 21

    Cloudy

    • 13
    • 20

    Cloudy

    • 12
    • 22

    Cloud clearing

    • 13
    • 29

    Sunny

    • 15
    • 35

    Sunny

Today 22 Dec Mount Lofty Ranges

Partly cloudy. Slight chance of a shower about the southern Fleurieu Peninsula, most likely late this afternoon and evening. Near zero chance of rain elsewhere. Winds southwesterly 15 to 25 km/h. Daytime maximum temperatures between 19 and 22.

South Central Coastal Waters

Wind
West to southwesterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres by early evening.
1st Swell
Westerly 1.5 to 2.5 metres, tending southwesterly 2 metres later in the evening.
Weather
Partly cloudy.
Weather Situation
A high pressure ridge extends across the entire Coastal Waters and persists until Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Rocky Bay Temperature Statistics View More

December Temperature

Encounter Bay (7km)

  • Lowest 3 December, 2025

    6.9 °C

  • Average December

    18.5 °C

  • Highest 18 December, 2025

    40.7 °C

Climate (2020–Present)

Encounter Bay (7km)

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  • Average Low 2020–2025

    10.4 °C

  • Average 2020–2025

    15.1 °C

  • Average High 2020–2025

    20.6 °C
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