Diamond Bay Beach Weather Forecast

    • 12
    • 17

    Shower

    • 11
    • 19

    Rain

    • 7
    • 14

    Shower

    • 9
    • 17

    Shower

    • 12
    • 17

    Shower

    • 12
    • 18

    Shower

    • 12
    • 19

    Partly cloudy

Today 5 May Mornington Peninsula

Cloudy. High chance of showers, becoming less likely in the late morning. Winds westerly 25 to 35 km/h tending southwesterly 15 to 25 km/h in the late afternoon then becoming light in the evening.

Port Phillip Local Waters

Wind
Westerly 15 to 25 knots decreasing to about 10 knots in the late afternoon.
Seas
1 to 1.5 metres, decreasing to 1 metre around midday.
Weather
Partly cloudy. 50% chance of showers.
Weather Situation
A low pressure system will weaken as it moves through Bass Strait early this morning. A ridge of high pressure extends over northern Victoria during Tuesday ahead of a cold front approaching from the Bight. This front is forecast to cross Bass Strait between late Wednesday and early Thursday. A low pressure system may form in the Tasman Sea near the eastern Victorian coast during Thursday, before moving away to the east early Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Diamond Bay Beach Temperature Statistics View More

May Temperature

Cerberus (38km)

  • Lowest 2 May, 2026

    10.5 °C

  • Average May

    16.7 °C

  • Highest 1 May, 2026

    27.8 °C

Climate (2021–Present)

Cerberus (38km)

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  • Average Low 2021–2026

    10.2 °C

  • Average 2021–2026

    14.5 °C

  • Average High 2021–2026

    19.6 °C
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