Saint Mary Bay Weather Forecast

    • 13
    • 19

    Clear

    • 12
    • 22

    Partly cloudy

    • 14
    • 24

    Cloudy

    • 19
    • 27

    Partly cloudy

    • 20
    • 28

    Shower

    • 17
    • 20

    Partly cloudy

    • 14
    • 20

    Partly cloudy

Today 27 Mar West Coast

Mostly clear. Winds east to southeasterly 20 to 30 km/h tending south to southeasterly 25 to 35 km/h in the late afternoon.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southeasterly 15 to 25 knots.
Seas
Around 1 metre, increasing to 1.5 to 2 metres by early evening.
1st Swell
Southwesterly 2 metres.
Weather
Mostly clear.
Weather Situation
A high pressure system south of the Bight will move slowly eastwards over the weekend to be centred over the Tasman Sea on Monday. A trough is forecast to enter the far west on Tuesday before sliding over southern parts of SA on Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Saint Mary Bay Temperature Statistics View More

March Temperature

Streaky Bay (45km)

  • Lowest 9 March, 2026

    9 °C

  • Average March

    17.6 °C

  • Highest 24 March, 2026

    34.1 °C

Climate (2021–Present)

Streaky Bay (45km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    16.5 °C

  • Average High 2021–2026

    23.6 °C
Get WillyWeather+ to remove ads