Rosetta Harbor Weather Forecast

    • 15
    • 20

    Becoming windy. Cloudy

    • 13
    • 19

    Partly cloudy

    • 12
    • 21

    Mostly sunny

    • 14
    • 26

    Sunny

    • 14
    • 25

    Partly cloudy

    • 14
    • 24

    Partly cloudy

    • 14
    • 26

    Mostly sunny

Today 30 Dec Mount Lofty Ranges

Cloudy. Winds south to southeasterly 25 to 35 km/h increasing to 25 to 40 km/h in the early afternoon. Overnight temperatures falling to between 14 and 17 with daytime temperatures reaching between 18 and 24.

South Central Coastal Waters

Wind
Southerly 20 to 25 knots turning southeasterly in the late morning and early afternoon. Winds reaching up to 30 knots during the afternoon and evening.
Seas
1.5 to 2.5 metres.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres during the morning, then increasing to 1.5 to 2 metres by early evening.
Weather
Cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Rosetta Harbor Temperature Statistics View More

December Temperature

Encounter Bay (3km)

  • Lowest 3 December, 2025

    6.9 °C

  • Average December

    18.4 °C

  • Highest 18 December, 2025

    40.7 °C

Climate (2020–Present)

Encounter Bay (3km)

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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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