Saint Mary Bay Weather Forecast

    • 14
    • 18

    Partly cloudy

    • 14
    • 18

    Cloudy

    • 10
    • 19

    Partly cloudy

    • 10
    • 20

    Sunny

    • 10
    • 21

    Sunny

    • 11
    • 21

    Partly cloudy

    • 13
    • 21

    Sunny

Today 11 Apr West Coast

Cloudy. Slight chance of a shower east of Ceduna, near zero chance elsewhere. Winds south to southwesterly 20 to 30 km/h becoming light in the late evening. Daytime maximum temperatures between 19 and 22.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southwesterly 15 to 20 knots turning southerly 10 to 15 knots in the evening.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 3 metres, increasing to 3 to 4 metres south of Streaky Bay.
Weather
Cloudy.
Weather Situation
A high pressure system south of WA extends a ridge over South Australia. This ridge will persist over SA this weekend as the high moves slowly east to be south of the Bight by tomorrow night. The high is forecast to hover over SA on Monday, then weaken and step back to the west on Tuesday allowing a series of fronts to pass over the southeast on Wednesday and Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Saint Mary Bay Temperature Statistics View More

April Temperature

Streaky Bay (45km)

  • Lowest 2 April, 2026

    8.5 °C

  • Average April

    17.4 °C

  • Highest 4 April, 2026

    29 °C

Climate (2021–Present)

Streaky Bay (45km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    16.5 °C

  • Average High 2021–2026

    23.6 °C
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