Dianas Beach Weather Forecast
- 13
- 24
Partly cloudy
- 11
- 20
Partly cloudy
- 12
- 19
Cloudy
- 13
- 21
Shower or two
- 13
- 25
Possible shower
- 14
- 24
Shower or two
- 14
- 24
Shower or two
Today 6 Mar St Helens
Partly cloudy. Winds east to northeasterly 15 to 20 km/h shifting northwesterly 15 to 25 km/h in the evening.
Upper East Coastal Waters
St Helens Point to Wineglass Bay- Wind
- Variable about 10 knots becoming east to northeasterly 15 to 20 knots in the early afternoon then turning north to northwesterly in the late afternoon. Winds reaching up to 25 knots offshore in the evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres offshore by early evening.
- 1st Swell
- South to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
- Weather
- Partly cloudy.
- Weather Situation
- A trough lingers about the southeast following the passage of a cold front yesterday. A ridge of high pressure will then slowly extend over the state from late today, as the high centre is forecast to approach the west coast on Saturday, move over Tasmania on Sunday and out to the east on Monday.
Dianas Beach Temperature Statistics View More
March Temperature
St Helens Aerodrome (5km)
Lowest 4 March, 2026
13.9 °CAverage March
18.2 °CHighest 4 March, 2026
23.5 °C
Climate (2021–Present)
St Helens Aerodrome (5km)
Average Low 2021–2026
9.3 °CAverage 2021–2026
13.3 °CAverage High 2021–2026
18.2 °C