Grants Lagoon Entrance Weather Forecast
- 9
- 21
Clear
- 9
- 24
Sunny
- 12
- 23
Partly cloudy
- 13
- 23
Shower or two
- 13
- 22
Partly cloudy
- 13
- 23
Partly cloudy
- 11
- 21
Partly cloudy
Today 13 Mar St Helens
Clear. Light winds.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- Variable about 10 knots becoming west to northwesterly 10 to 15 knots in the evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southerly around 1 metre inshore, increasing to 1 to 2 metres offshore.
- Weather
- Clear.
- Weather Situation
- A high centred well to the west of Tasmania extends ridge of high pressure over the state this evening. The ridge is forecast to persist throughout the weekend and early next week, with a weak trough also expected to develop offshore the east coast on Sunday, lingering into Monday. A weak cold front is then forecast to cross the state on Tuesday.
Grants Lagoon Entrance Temperature Statistics View More
March Temperature
St Helens Aerodrome (9km)
Lowest 12 March, 2026
10.8 °CAverage March
17.4 °CHighest 10 March, 2026
25.3 °C
Climate (2021–Present)
St Helens Aerodrome (9km)
Average Low 2021–2026
9.3 °CAverage 2021–2026
13.3 °CAverage High 2021–2026
18.2 °C