Waterfall Bay (Port Arthur) Weather Forecast
- 8
- 12
Possible morning shower
- 6
- 11
Cloud clearing
- 4
- 12
Showers increasing
- 7
- 11
Cloudy
- 5
- 12
Partly cloudy
- 6
- 13
Mostly sunny
- 7
- 14
Possible shower
Today 5 Jul South East
Cloudy. Slight chance of a shower early this morning. Snow possible above 1000 metres. Areas of morning frost in the south. Winds northwest to southwesterly 20 to 30 km/h tending south to southwesterly 15 to 20 km/h in the middle of the day then becoming light in the early afternoon. Daytime maximum temperatures between 7 and 11.
South East Coastal Waters
Tasman Island to South East Cape- Wind
- Southerly 15 to 20 knots becoming variable below 10 knots in the late evening.
- Seas
- 1 to 2 metres, decreasing below 1 metre around midday.
- 1st Swell
- Southwesterly 5 to 7 metres, decreasing to 4 to 5 metres during the afternoon.
- Weather
- Cloudy.
- Weather Situation
- A very strong high pressure centre is moving over the state today and remaining in the vicinity during Monday. A trough is forecast to cross the south on Tuesday, before another high pressure system arrives in the evening. The high persists overhead during Wednesday.
Waterfall Bay (Port Arthur) Temperature Statistics View More
July Temperature
Tasman Island (15km)
Lowest 4 July, 2026
3.9 °CAverage July
9.6 °CHighest 1 July, 2026
15.3 °C
Climate (2021–2026)
Tasman Island (15km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
11.5 °CAverage High 2021–2026
14.6 °C