Grants Lagoon Entrance Weather Forecast
- 4
- 18
Mostly sunny
- 6
- 19
Partly cloudy
- 10
- 18
Cloudy
- 12
- 20
Cloudy
- 10
- 19
Partly cloudy
- 11
- 23
Partly cloudy
- 13
- 25
Possible shower
Today 19 Apr St Helens
Mostly sunny. Light winds.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- Southerly 10 to 15 knots becoming variable about 10 knots in the morning.
- Seas
- Around 1 metre, decreasing below 0.5 metres during the afternoon.
- 1st Swell
- Southerly 2.5 to 3 metres, tending southeasterly 2.5 to 3 metres during the afternoon.
- Weather
- Partly cloudy.
- Weather Situation
- A ridge of high pressure will move to the east of the state today. The high is expected to remain over the Southern Tasman Sea through Monday and Tuesday and extend a ridge to extend over Tasmania, with a weak cold front to approach the west of the state late Wednesday.
Grants Lagoon Entrance Temperature Statistics View More
April Temperature
St Helens Aerodrome (9km)
Lowest 14 April, 2026
4.9 °CAverage April
13.8 °CHighest 1 April, 2026
26 °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