Port Arthur Weather Forecast
- 15
- 26
Sunny
- 15
- 23
Sunny
- 14
- 23
Sunny
- 14
- 24
Sunny
- 14
- 32
Sunny
- 20
- 30
Shower
- 15
- 24
Shower
Today 6 Mar Yorke Peninsula
Sunny. Light winds becoming south to southwesterly 20 to 30 km/h in the middle of the day then tending south to southeasterly 15 to 25 km/h in the late evening. Daytime maximum temperatures in the mid to high 20s.
Gulf St Vincent Coastal Waters
- Wind
- Variable about 10 knots becoming southerly 15 to 20 knots in the early afternoon.
- Seas
- Below 0.5 metres, increasing to around 1 metre during the afternoon.
- 1st Swell
- Southeast to southwesterly below 0.5 metres.
- Weather
- Sunny.
- Weather Situation
- A ridge of high pressure will persist across the south of SA this week. The ridge will strengthen as another high strengthens over waters south of the Bight over the weekend. This second high will move eastwards late in the weekend and early next week ahead of a cold front expected to move across mid next week.
Port Arthur Temperature Statistics View More
March Temperature
Kadina Airport (41km)
Lowest 5 March, 2026
11.3 °CAverage March
18.8 °CHighest 1 March, 2026
25.6 °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