Port Arthur Weather Forecast
- 10
- 24
Clear
- 12
- 32
Partly cloudy
- 20
- 36
Windy
- 14
- 29
Partly cloudy
- 15
- 24
Shower
- 11
- 23
Partly cloudy
- 11
- 29
Sunny
Today 2 Dec Yorke Peninsula
Clear. Light winds.
Gulf St Vincent Coastal Waters
- Wind
- Variable below 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly below 0.5 metres.
- Weather
- Clear.
- Weather Situation
- A high pressure system over SA will continue to slowly move eastwards to be centred over the Tasman Sea by Wednesday evening. A low pressure trough will then move into the west of SA late Wednesday and extend northeastwards during Thursday, followed by another ridge of high pressure. A weak cold front clips the far southeast Saturday morning.
Port Arthur Temperature Statistics View More
December Temperature
Kadina Airport (41km)
Lowest 1 December, 2025
12.8 °CAverage December
15.4 °CHighest
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Climate (2020–Present)
Kadina Airport (41km)
Average Low 2020–2025
10.1 °CAverage 2020–2025
16.3 °CAverage High 2020–2025
23.3 °C