St Helens Weather Forecast

    • 8
    • 18

    Morning fog then mostly sunny

    • 9
    • 18

    Showers easing

    • 9
    • 18

    Showers easing

    • 9
    • 19

    Partly cloudy

    • 7
    • 18

    Partly cloudy

    • 8
    • 18

    Shower or two

    • 8
    • 17

    Shower or two

Today 18 May South West

Partly cloudy. Patchy fog in the morning, mainly in the west. Slight chance of a shower. Light winds. Overnight temperatures falling to between 7 and 10 with daytime temperatures reaching around 18.

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  • Temperature Forecast Bureau of Meteorology

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St Helens Temperature Statistics View More

May Temperature

Port Fairy (20km)

  • Lowest 12 May, 2026

    7.2 °C

  • Average May

    14.9 °C

  • Highest 1 May, 2026

    28.5 °C

Climate (2021–Present)

Port Fairy (20km)

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  • Average Low 2021–2026

    10.7 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    18.9 °C
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