Rosetta Harbor Weather Forecast

    • 8
    • 17

    Shower or two

    • 8
    • 16

    Partly cloudy

    • 5
    • 16

    Becoming cloudy

    • 9
    • 15

    Partly cloudy

    • 7
    • 16

    Sunny

    • 6
    • 20

    Mostly sunny

    • 8
    • 23

    Partly cloudy

Today 6 Sep Mount Lofty Ranges

Partly cloudy. Slight chance of a shower. Winds westerly 15 to 20 km/h becoming light in the early morning. Daytime maximum temperatures between 14 and 17.

South Central Coastal Waters

Wind
Southwesterly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Southwesterly 3 to 5 metres, decreasing to 3 metres by early evening.
Weather
Cloudy.
Weather Situation
A ridge of high pressure lies across the state. A cold front will move across southern coasts early Monday but the ridge will persist further north. A trough over the interior of WA will be near stationary early to mid next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Rosetta Harbor Temperature Statistics View More

September Temperature

Encounter Bay (3km)

  • Lowest 2 September, 2026

    7.1 °C

  • Average September

    14.2 °C

  • Highest 1 September, 2026

    22.4 °C

Climate (2021–2026)

Encounter Bay (3km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    15.2 °C

  • Average High 2021–2026

    20.7 °C
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