Port Bonython Weather Forecast

    • 10
    • 16

    Partly cloudy

    • 7
    • 16

    Partly cloudy

    • 7
    • 18

    Partly cloudy

    • 8
    • 18

    Partly cloudy

    • 7
    • 18

    Sunny

    • 8
    • 19

    Mostly sunny

    • 11
    • 19

    Possible shower

Today 4 Jun Whyalla

Partly cloudy. Slight chance of a shower, most likely later this evening. Winds southwesterly 25 to 30 km/h decreasing to 15 to 20 km/h in the late afternoon then becoming light in the late evening.

Spencer Gulf Coastal Waters

Wind
Southwesterly 15 to 25 knots.
Seas
1.5 to 2 metres.
1st Swell
South to southwesterly around 1 metre south of Cowell to Wallaroo.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A broad southwesterly flow over SA waters will tend west to northwesterly as a high pressure system over southern WA moves steadily eastwards across northern SA on Friday and Saturday, reaching NSW on Sunday and the Tasman Sea by Monday. Northerly winds freshen from the west on Tuesday ahead of a mid-week southwesterly change.
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  • Temperature Forecast Bureau of Meteorology

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Port Bonython Temperature Statistics View More

June Temperature

Whyalla Airport (24km)

  • Lowest 3 June, 2026

    9.3 °C

  • Average June

    15.1 °C

  • Highest 1 June, 2026

    22 °C

Climate (2021–Present)

Whyalla Airport (24km)

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  • Average Low 2021–2026

    12 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    23.8 °C
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