Big Lagoon Entrance Weather Forecast
- 9
- 19
Mostly sunny
- 6
- 20
Mostly sunny
- 11
- 22
Shower or two
- 9
- 18
Partly cloudy
- 7
- 15
Partly cloudy
- 11
- 17
Shower or two
- 8
- 15
Shower or two
Today 3 Oct St Helens
Mostly sunny. Winds northwest to southwesterly 15 to 20 km/h tending south to southwesterly in the morning then becoming light in the evening.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- Westerly 10 to 15 knots, reaching up to 30 knots offshore during the day. Winds turning south to southwesterly during the afternoon and evening.
- Seas
- 2 to 3 metres.
- 1st Swell
- Southeast to southwesterly 1 to 2 metres, tending south to southeasterly 1.5 to 2.5 metres later in the evening.
- Weather
- Mostly sunny.
- Weather Situation
- A high pressure system is expected to move over Victoria today and extend a ridge over Tasmania later in the day. The ridge is forecast to move east on Saturday, ahead of a trough and a cold front expected to approach and cross the state from the west during Sunday. On Monday, a ridge over the southern mainland will direct westerly flow over Tasmania.
Big Lagoon Entrance Temperature Statistics View More
October Temperature
St Helens Aerodrome (17km)
Lowest 1 October, 2025
7.3 °CAverage October
11.7 °CHighest 1 October, 2025
15.2 °C
Climate (2020–Present)
St Helens Aerodrome (17km)
Average Low 2020–2025
9.4 °CAverage 2020–2025
13.3 °CAverage High 2020–2025
18.2 °C