Sand Island Weather Forecast

    • 12
    • 18

    Storm

    • 10
    • 20

    Cloudy

    • 12
    • 19

    Shower

    • 11
    • 20

    Shower

    • 11
    • 17

    Windy

    • 11
    • 18

    Cloudy

    • 11
    • 23

    Sunny

Today 21 Dec Central

Cloudy. The chance of fog in the east in the early morning. Very high chance of rain. The chance of a thunderstorm in the morning and afternoon. Winds northeast to southeasterly 15 to 20 km/h tending south to southeasterly in the middle of the day then turning southwesterly 20 to 30 km/h in the early afternoon. Overnight temperatures falling to between 9 and 12 with daytime temperatures reaching between 19 and 23.

Port Phillip Local Waters

Wind
East to southeasterly about 10 knots tending southeast to southwesterly 15 to 20 knots in the middle of the day then becoming southwesterly 15 to 25 knots in the evening.
Seas
Below 1 metre, decreasing below 0.5 metres during the morning, then increasing to around 1 metre around midday.
Weather
Cloudy. 90% chance of rain. The chance of a thunderstorm in the afternoon.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sand Island Temperature Statistics View More

December Temperature

Avalon Airport (30km)

  • Lowest 7 December, 2025

    6.6 °C

  • Average December

    17.2 °C

  • Highest 18 December, 2025

    39.5 °C

Climate (2020–Present)

Avalon Airport (30km)

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

  • Average Low 2020–2025

    9.6 °C

  • Average 2020–2025

    14.5 °C

  • Average High 2020–2025

    20.4 °C
Get WillyWeather+ to remove ads