Dianas Beach Weather Forecast

    • 14
    • 25

    Partly cloudy

    • 16
    • 22

    Shower or two

    • 15
    • 25

    Shower or two

    • 13
    • 19

    Showers

    • 11
    • 17

    Shower or two. Becoming windy

    • 10
    • 18

    Possible shower

    • 12
    • 21

    Partly cloudy

Today 23 Mar St Helens

Becoming cloudy. Slight chance of a shower late this afternoon and evening. Light winds becoming south to southeasterly 15 to 20 km/h in the late afternoon then becoming light in the late evening.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northwesterly 10 to 15 knots becoming variable about 10 knots in the middle of the day then becoming east to southeasterly 10 to 15 knots in the late afternoon.
Seas
Around 1 metre.
1st Swell
Southerly below 1 metre.
Weather
Partly cloudy.
Weather Situation
A cold front approaches the west of Tasmania, crossing the state from the west this morning before becoming a slow-moving trough over the state into Tuesday. Another cold front is expected to approach the west during Wednesday, crossing the state early Thursday, bringing with it a fresh southerly flow during Thursday as a high pressure system lies well to the west of Tasmania.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

March Temperature

St Helens Aerodrome (5km)

  • Lowest 13 March, 2026

    6.8 °C

  • Average March

    16.8 °C

  • Highest 20 March, 2026

    25.6 °C

Climate (2021–Present)

St Helens Aerodrome (5km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    13.3 °C

  • Average High 2021–2026

    18.2 °C
Get WillyWeather+ to remove ads