Onion Creek Entrance Weather Forecast
- 5
- 16
Clear
- 5
- 17
Mostly sunny
- 7
- 18
Shower or two
- 11
- 18
Shower or two
- 11
- 17
Shower or two
- 11
- 17
Shower or two
- 11
- 18
Shower or two
Today 21 May St Helens
Clear. Light winds.
Upper East Coastal Waters
St Helens Point to Wineglass Bay- Wind
- Northwesterly about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
- Weather
- Clear.
- Weather Situation
- A ridge of high pressure slowly crosses Tasmania today and tomorrow, bringing mostly settled weather to the state. The high is then forecast to move to the east of Tasmania later Friday as a cold front approaches from the west during Saturday, and crosses over the west later Sunday. A low pressure centre is expected to develop on the front to the northwest of Tasmania later Sunday and during Monday, directing a trough over the state on Monday.
Onion Creek Entrance Temperature Statistics View More
May Temperature
St Helens Aerodrome (3km)
Lowest 20 May, 2026
5.1 °CAverage May
13.6 °CHighest 1 May, 2026
24.9 °C
Climate (2021–Present)
St Helens Aerodrome (3km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
13.4 °CAverage High 2021–2026
18.3 °C