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.
Dianas Basin Temperature Statistics View More
February Temperature
St Helens Aerodrome (5km)
Lowest 3 February, 2026
8.4 °CAverage February
17.2 °CHighest 4 February, 2026
29.4 °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