Dianas Basin Weather Forecast

    • 9
    • 14

    Shower or two

    • 7
    • 16

    Shower or two

    • 8
    • 18

    Partly cloudy

    • 9
    • 22

    Mostly sunny

    • 14
    • 25

    Mostly sunny

    • 10
    • 22

    Mostly sunny

    • 11
    • 21

    Partly cloudy

Today 30 Nov St Helens

Cloudy. High chance of showers. Light winds.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
South to southeasterly 10 to 15 knots tending south to southwesterly before dawn then becoming variable about 10 knots in the morning.
Seas
Below 1 metre.
1st Swell
Southerly 1 to 2 metres, decreasing to 1 to 1.5 metres around midday.
Weather
Cloudy. 60% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Basin Temperature Statistics View More

November Temperature

St Helens Aerodrome (5km)

  • Lowest 21 November, 2025

    4.8 °C

  • Average November

    13.3 °C

  • Highest 25 November, 2025

    21.9 °C

Climate (2020–Present)

St Helens Aerodrome (5km)

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  • Average Low 2020–2025

    9.3 °C

  • Average 2020–2025

    13.3 °C

  • Average High 2020–2025

    18.2 °C
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