Frenchman Rock Weather Forecast

    • 5
    • 23

    Sunny

    • 9
    • 19

    Shower or two. Windy

    • 8
    • 16

    Possible shower

    • 9
    • 18

    Shower or two

    • 9
    • 17

    Possible shower

    • 9
    • 17

    Cloudy

    • 9
    • 19

    Partly cloudy

Today 18 Sep Mount Lofty Ranges

Sunny. Winds northerly 20 to 30 km/h increasing to 35 km/h before turning northwesterly 15 to 20 km/h in the late morning and afternoon. Daytime maximum temperatures between 19 and 23.

South Central Coastal Waters

Wind
Northerly 15 to 20 knots, reaching up to 25 knots west of Kangaroo Island in the early afternoon. Winds turning westerly 10 to 15 knots in the early afternoon.
Seas
1 to 1.5 metres, decreasing below 1 metre later in the evening.
1st Swell
Southwesterly 3 metres, tending westerly 2.5 to 3 metres during the morning, then tending west to southwesterly 2.5 metres by early evening.
Weather
Partly cloudy.
Weather Situation
A high pressure system lies over NSW with a ridge extending into the east of the state. A weak trough will move over South Australian waters later today, settling over the far northeast tonight before clearing on Friday. A cold front will pass over the south during Friday afternoon with a southwesterly flow persisting through the weekend as a ridge of high pressure extends over northern parts of the state.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Frenchman Rock Temperature Statistics View More

September Temperature

Encounter Bay (9km)

  • Lowest 2 September, 2025

    3.5 °C
  • Average September

    14.3 °C
  • Highest 6 September, 2025

    27.4 °C

Climate (2020–Present)

Encounter Bay (9km)

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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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