St Helens Weather Forecast
- 3
- 14
Possible shower
- 5
- 14
Shower or two
- 3
- 16
Possible shower
- 4
- 14
Mostly sunny
- 3
- 15
Possible shower
- 7
- 14
Showers
- 7
- 15
Shower or two
Today 4 Aug St Helens
Partly cloudy. Medium chance of showers, most likely later this evening. Light winds.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- West to southwesterly about 10 knots, reaching up to 20 knots offshore in the late afternoon.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres offshore.
- 1st Swell
- Southeast to southwesterly around 1 metre.
- Weather
- Partly cloudy. 60% chance of showers.
- Weather Situation
- A broad area of low pressure over the east of Tasmania is slowly moving into the Tasman Sea. A ridge of high pressure will develop over Tasmania on Wednesday, ahead of a weak cold front expected to cross the state on Thursday. The ridge of high pressure will redevelop over Tasmania on Friday before the airstream tends northwesterly ahead of an approaching cold front on Saturday.
St Helens Temperature Statistics View More
August Temperature
St Helens Aerodrome (3km)
Lowest 1 August, 2026
3 °CAverage August
8.8 °CHighest 2 August, 2026
15.7 °C
Climate (2021–2026)
St Helens Aerodrome (3km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
13.4 °CAverage High 2021–2026
18.3 °C