Port Arthur Weather Forecast
- 13
- 23
Partly cloudy
- 11
- 22
Cloudy
- 11
- 19
Partly cloudy
- 10
- 26
Partly cloudy
- 16
- 28
Shower
- 18
- 32
Partly cloudy
- 15
- 27
Shower
Today 18 Nov Yorke Peninsula
Mostly clear. Winds westerly 25 to 30 km/h tending southwesterly 20 to 30 km/h in the late afternoon then becoming light in the late evening.
Gulf St Vincent Coastal Waters
- Wind
- Southwesterly 10 to 15 knots, reaching up to 20 knots south of Port Vincent to Brighton in the late afternoon.
- Seas
- Around 1 metre.
- 1st Swell
- South to southwesterly below 0.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high southwest of Perth extends a ridge over SA directing a broad southwesterly flow across SA Waters. The flow will turn southeasterly with the ridge moving southeast this week and the high moving to a position well south of the Bight by Thursday night. The high and associated ridge is expected to pass over Tasmania on Friday allowing a trough to enter the far west of South Australia. The trough in the west is forecast to slowly move over the state at the weekend.
Port Arthur Temperature Statistics View More
November Temperature
Kadina Airport (41km)
Lowest 12 November, 2025
2 °CAverage November
15.7 °CHighest 1 November, 2025
30.8 °C
Climate (2020–Present)
Kadina Airport (41km)
Average Low 2020–2025
10.1 °CAverage 2020–2025
16.3 °CAverage High 2020–2025
23.4 °C