Grantham Island Weather Forecast

    • 13
    • 25

    Shower or two. Storm clearing

    • 14
    • 24

    Mostly sunny

    • 15
    • 30

    Mostly sunny

    • 14
    • 25

    Possible shower

    • 13
    • 22

    Shower or two

    • 11
    • 22

    Possible shower

    • 11
    • 22

    Shower or two

Today 22 Nov Port Lincoln

Partly cloudy. Medium chance of showers, becoming less likely in the afternoon. A thunderstorm likely in the late morning and afternoon. Winds east to northeasterly 20 to 25 km/h turning southeasterly in the evening.

Spencer Gulf Coastal Waters

Wind
East to northeasterly 10 to 15 knots turning southeasterly in the afternoon. Winds reaching up to 20 knots south of Cowell to Wallaroo in the late morning and again in the evening.
Seas
Around 1 metre.
1st Swell
South to southwesterly around 1 metre.
Weather
Partly cloudy. 60% chance of showers. The chance of a thunderstorm in the late morning and afternoon.
Weather Situation
A low pressure trough over central waters continues to move east reaching eastern waters late Saturday and clearing to the east on Sunday A secondary low pressure trough is expected to move into western waters late Sunday clearing to the east late Monday. A broad westerly flow develops ahead of another trough expected to move into western waters late Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grantham Island Temperature Statistics View More

November Temperature

Port Lincoln Airport (19km)

  • Lowest 10 November, 2025

    7.1 °C

  • Average November

    15.2 °C

  • Highest 6 November, 2025

    30.3 °C

Climate (2020–Present)

Port Lincoln Airport (19km)

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

  • Average Low 2020–2025

    11.4 °C

  • Average 2020–2025

    15.8 °C

  • Average High 2020–2025

    21.3 °C
Get WillyWeather+ to remove ads