Dianas Beach Weather Forecast

    • 11
    • 16

    Showers increasing

    • 9
    • 15

    Showers

    • 7
    • 15

    Shower or two

    • 4
    • 12

    Partly cloudy

    • 4
    • 13

    Cloudy

    • 5
    • 14

    Partly cloudy

    • 3
    • 14

    Mostly sunny

Today 1 Jul St Helens

Partly cloudy. High chance of showers, most likely at night. Winds northwesterly 15 to 20 km/h tending northerly 15 to 25 km/h in the middle of the day then becoming light in the late afternoon.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
North to northwesterly 15 to 20 knots, reaching up to 25 knots offshore in the afternoon. Winds tending north to northeasterly 10 to 15 knots during the afternoon and evening.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres later in the evening.
1st Swell
Northeasterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A strong trough approaches from the west today, crossing in the early hours of Thursday. Another strong trough is forecast to move over Tasmania from the west on Friday morning before a cold front follows in the afternoon. A cold southwesterly airstream develops on Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

July Temperature

St Helens Aerodrome (5km)

  • Lowest

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  • Average July

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  • Highest

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Climate (2021–2026)

St Helens Aerodrome (5km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    13.4 °C

  • Average High 2021–2026

    18.3 °C
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