Port Arthur Weather Forecast
- 19
- 24
Partly cloudy
- 15
- 21
Cloudy
- 12
- 23
Partly cloudy
- 13
- 27
Sunny
- 16
- 28
Partly cloudy
- 17
- 25
Shower
- 16
- 27
Shower
Today 11 Mar Yorke Peninsula
Clear. Winds southerly 25 to 35 km/h.
Gulf St Vincent Coastal Waters
- Wind
- Southerly 15 to 20 knots.
- Seas
- 1.5 metres.
- 1st Swell
- West to southwesterly below 0.5 metres.
- Weather
- Mostly clear.
- Weather Situation
- A ridge of high pressure is building across southern SA behind a trough over the north. The ridge will shift south of SA over the Southern Ocean later this week and remain there over the weekend. A trough over inland WA is expected to move into western SA over the weekend.
Port Arthur Temperature Statistics View More
March Temperature
Kadina Airport (41km)
Lowest 10 March, 2026
10.5 °CAverage March
19 °CHighest 6 March, 2026
27.6 °C
Climate (2021–Present)
Kadina Airport (41km)
Average Low 2021–2026
10.1 °CAverage 2021–2026
16.4 °CAverage High 2021–2026
23.5 °C