Pirates Bay Weather Forecast
- 9
- 16
Mostly clear
- 6
- 17
Partly cloudy
- 9
- 18
Partly cloudy
- 12
- 19
Shower or two
- 9
- 15
Shower or two
- 8
- 15
Possible shower
- 9
- 17
Possible shower
Today 22 Sep South East
Clear. Winds northwest to southwesterly 20 to 30 km/h becoming northwesterly 15 to 20 km/h in the late evening.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- Northeasterly 10 to 15 knots turning northerly in the evening. Winds reaching up to 20 knots offshore in the late evening.
- Seas
- Around 1 metre.
- 1st Swell
- South to southwesterly 2 to 3 metres inshore, increasing to 3 to 5 metres offshore.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure system centred over Bass Strait moves eastwards to lie over the northern Tasman Sea during Wednesday and Thursday, maintaining ridge dominated conditions over Tasmania. A trough is forecast to move over the state from the west during Friday ahead of a cold front to cross later. A secondary high pressure system is forecast to extend a ridge over Tasmania from the southwest during Saturday.
Pirates Bay Temperature Statistics View More
September Temperature
Tasman Island (25km)
Lowest 16 September, 2026
3.4 °CAverage September
10.7 °CHighest 20 September, 2026
24.5 °C
Climate (2021–2026)
Tasman Island (25km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
11.6 °CAverage High 2021–2026
14.6 °C