Waterfall Bay (Port Arthur) Weather Forecast
- 11
- 17
Shower or two
- 10
- 20
Partly cloudy
- 10
- 21
Mostly sunny
- 11
- 20
Showers
- 10
- 17
Shower or two
- 9
- 18
Partly cloudy
- 11
- 19
Shower or two
Today 28 Oct South East
Cloudy. High chance of showers in the south, medium chance elsewhere. Winds westerly 30 to 45 km/h. Daytime maximum temperatures between 11 and 17.
South East Coastal Waters
Tasman Island to South East Cape- Wind
- Westerly 25 to 30 knots, reaching up to 35 knots during the day. Winds turning southwesterly in the middle of the day.
- Seas
- 2.5 to 3 metres, increasing to 2 to 4 metres inshore during the morning.
- 1st Swell
- Southwesterly 3 to 5 metres.
- Weather
- Cloudy. 80% chance of showers.
- Weather Situation
- A cool west to southwesterly airstream persists over Tasmania until today as a ridge of high pressure extends from south of the Bight over Victoria, and a broad area of low pressure lies well to the south of Tasmania. The high is forecast to move eastwards over Bass Strait during Thursday and Friday, before a trough crosses the state on Saturday.
Waterfall Bay (Port Arthur) Temperature Statistics View More
October Temperature
Tasman Island (15 km)
Lowest 13 October, 2026
4 °CAverage October
11.7 °CHighest 23 October, 2026
28.3 °C
Climate (2021–2026)
Tasman Island (15 km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
11.6 °CAverage High 2021–2026
14.7 °C