St Helens Weather Forecast
- 13
- 24
Partly cloudy
- 13
- 18
Shower or two
- 14
- 26
Morning shower or two
- 12
- 21
Showers increasing
- 13
- 23
Possible shower
- 11
- 20
Possible shower
- 10
- 21
Partly cloudy
Today 18 Dec St Helens
Partly cloudy. Slight chance of a shower, becoming less likely later this evening. Light winds becoming southerly 15 to 25 km/h in the late evening.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- Variable about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Northeasterly below 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A trough clears the northeast of Tasmania this evening, as weak ridge moves to the south, persisting during Friday. A broad area of low pressure is forecast to approach from the west late Friday, moving over the state on Saturday. A second, more intense, low pressure system is then forecast to move over eastern Tasmania late Sunday. The low is expected to clear to the east during Monday morning, with a westerly flow to develop behind it.
St Helens Temperature Statistics View More
December Temperature
St Helens Aerodrome (3km)
Lowest 2 December, 2025
6.6 °CAverage December
15.7 °CHighest 4 December, 2025
27.3 °C
Climate (2020–Present)
St Helens Aerodrome (3km)
Average Low 2020–2025
9.3 °CAverage 2020–2025
13.3 °CAverage High 2020–2025
18.2 °C