Brentwood Weather Forecast

    • 17
    • 30

    Mostly sunny

    • 14
    • 24

    Cloudy

    • 13
    • 24

    Partly cloudy

    • 13
    • 29

    Sunny

    • 13
    • 29

    Mostly sunny

    • 15
    • 29

    Partly cloudy

    • 15
    • 25

    Partly cloudy

Today 9 Jan Yorke Peninsula

Mostly sunny. Winds south to southeasterly 15 to 25 km/h tending north to northwesterly 15 to 20 km/h in the early morning then tending west to southwesterly 25 to 40 km/h in the morning. Overnight temperatures falling to between 17 and 20 with daytime temperatures reaching 31 to 37.

Extreme Fire Danger Rating

Take action now to protect life and property

Spencer Gulf Coastal Waters

Wind
South to southeasterly 10 to 15 knots turning southwesterly 20 to 25 knots during the day. Winds reaching up to 30 knots in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres around midday, then increasing to 1.5 to 2.5 metres during the afternoon.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Mostly sunny morning. The chance of a thunderstorm north of Cowell to Wallaroo in the afternoon and evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Brentwood Temperature Statistics View More

January Temperature

Minlaton Airport (12km)

  • Lowest 1 January, 2026

    12.1 °C

  • Average January

    23.2 °C

  • Highest 6 January, 2026

    38.3 °C

Climate (2021–Present)

Minlaton Airport (12km)

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  • Average Low 2021–2026

    10.9 °C

  • Average 2021–2026

    16.1 °C

  • Average High 2021–2026

    22.5 °C
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