Dianas Basin Weather Forecast

    • 12
    • 18

    Shower or two

    • 10
    • 18

    Shower or two

    • 10
    • 21

    Partly cloudy

    • 12
    • 21

    Partly cloudy

    • 14
    • 25

    Partly cloudy

    • 18
    • 27

    Shower or two. Becoming windy

    • 13
    • 21

    Partly cloudy

Today 22 Dec St Helens

Cloudy. Medium chance of showers, most likely at night. Winds southeasterly 15 to 20 km/h shifting north to northeasterly in the middle of the day then becoming light in the evening.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Southerly 15 to 20 knots shifting northerly in the afternoon.
Seas
1 to 2 metres, decreasing below 1 metre during the morning, then increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southerly 1.5 to 2 metres, decreasing to 1.5 metres during the morning, then tending southeasterly 1 to 1.5 metres around midday.
Weather
Cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Basin Temperature Statistics View More

December Temperature

St Helens Aerodrome (5km)

  • Lowest 9 December, 2024

    10.3 °C

  • Average December

    17 °C

  • Highest 13 December, 2024

    25.8 °C

Climate (2019–Present)

St Helens Aerodrome (5km)

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  • Average Low 2019–2024

    9.3 °C

  • Average 2019–2024

    13.2 °C

  • Average High 2019–2024

    18.1 °C
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