Dianas Beach Weather Forecast

    • 15
    • 26

    Late showers

    • 12
    • 24

    Partly cloudy

    • 14
    • 27

    Mostly sunny

    • 12
    • 26

    Mostly sunny

    • 14
    • 23

    Sunny

    • 13
    • 29

    Shower or two

    • 16
    • 24

    Shower or two

Today 17 Feb St Helens

Partly cloudy. Very high chance of showers, most likely in the evening. The chance of a thunderstorm in the evening. Winds northerly 15 to 20 km/h increasing to 20 to 30 km/h in the middle of the day then tending northwesterly 20 to 25 km/h in the late evening.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northerly 15 to 25 knots, reaching up to 30 knots in the late afternoon.
Seas
1 to 2 metres.
1st Swell
Southerly around 1 metre.
Weather
Partly cloudy. 90% chance of showers in the evening. The chance of a thunderstorm in the evening.
Weather Situation
A high pressure centre is to the east of Tasmania over the Tasman Sea ahead of a cold front forecast to approach from the west today, crossing the state during the afternoon. A ridge of high pressure is expected to develop over southeastern parts of the mainland on Wednesday, maintaining a westerly flow over Tasmania, until the ridge moves over Tasmania on Thursday, forecast to move eastwards over the Tasman Sea by Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

February Temperature

St Helens Aerodrome (5km)

  • Lowest 13 February, 2026

    8.3 °C

  • Average February

    17.1 °C

  • Highest 4 February, 2026

    29.4 °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