Port Arthur Weather Forecast
- 7
- 17
Cloudy
- 6
- 17
Cloudy
- 7
- 17
Cloudy
- 6
- 18
Shower
- 9
- 20
Shower
- 10
- 19
Shower
- 9
- 17
Shower
Today 14 Aug Yorke Peninsula
Partly cloudy. Medium chance of light showers, becoming less likely in the late afternoon and evening. Light winds. Daytime maximum temperatures around 17.
Gulf St Vincent Coastal Waters
- Wind
- Variable below 10 knots.
- Seas
- Below 0.5 metres.
- 1st Swell
- Southeast to southwesterly below 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system centred over SA will remain near stationary, slowly drifting to the southeast to be located west of Tasmania on Saturday, with a ridge expected to remain over South Australia.
Port Arthur Temperature Statistics View More
August Temperature
Kadina Airport (41km)
Lowest 1 August, 2026
-0.8 °CAverage August
10.9 °CHighest 7 August, 2026
19 °C
Climate (2021–2026)
Kadina Airport (41km)
Average Low 2021–2026
10.2 °CAverage 2021–2026
16.4 °CAverage High 2021–2026
23.5 °C