Dianas Basin Weather Forecast

    • 11
    • 25

    Clear

    • 12
    • 23

    Mostly sunny

    • 15
    • 22

    Showers increasing

    • 14
    • 23

    Partly cloudy

    • 16
    • 22

    Cloudy

    • 15
    • 27

    Shower or two

    • 12
    • 22

    Partly cloudy

Today 6 Feb St Helens

Clear. Winds northerly 15 to 20 km/h turning westerly in the evening.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
East to northeasterly 10 to 15 knots, reaching up to 20 knots offshore during the afternoon and evening. Winds tending southeast to southwesterly in the late evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres offshore.
1st Swell
Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Mostly clear.
Weather Situation
A cold front passes to the south of Tasmania this evening, extending a trough over southeastern parts on Saturday morning. A ridge of high pressure briefly passes to the south on Saturday afternoon, before a broad trough is forecast to extend down over the state from the mainland on Sunday. The trough is expected to clear to the east on Monday, with another high pressure system forecast to move over the state by Tuesday.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Basin Temperature Statistics View More

February Temperature

St Helens Aerodrome (5km)

  • Lowest 3 February, 2026

    8.4 °C
  • Average February

    17.2 °C
  • Highest 4 February, 2026

    29.4 °C

Climate (2021–Present)

St Helens Aerodrome (5km)

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  • Average Low 2021–2026

    9.3 °C
  • Average 2021–2026

    13.3 °C
  • Average High 2021–2026

    18.2 °C
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