Port Arthur Weather Forecast
- 11
- 19
Partly cloudy
- 7
- 25
Sunny
- 13
- 29
Shower
- 14
- 26
Cloudy
- 10
- 21
Cloudy
- 9
- 23
Partly cloudy
- 10
- 25
Partly cloudy
Today 7 Nov Yorke Peninsula
Partly cloudy. Winds southerly 20 to 30 km/h tending southeasterly 25 to 35 km/h in the morning. Overnight temperatures falling to around 9 with daytime temperatures reaching between 19 and 22.
Gulf St Vincent Coastal Waters
- Wind
- Southerly 15 to 20 knots turning southeasterly during the day. Winds reaching up to 25 knots north of Port Vincent to Brighton in the evening.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres north of Port Vincent to Brighton.
- 1st Swell
- West to southwesterly below 0.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system centred well south of WA extends a ridge over northern and western SA. The high drifts over waters well to the south of SA over the weekend, while a developing low pressure system and trough in WA move close to the SA border. The high drifts southeast of Tasmania by Monday as the low moves across western SA on Monday and northern SA on Tuesday.
Port Arthur Temperature Statistics View More
November Temperature
Kadina Airport (41 km)
Lowest 5 November, 2026
5 °CAverage November
16.4 °CHighest 2 November, 2026
28.3 °C
Climate (2021–2026)
Kadina Airport (41 km)
Average Low 2021–2026
10.3 °CAverage 2021–2026
16.5 °CAverage High 2021–2026
23.5 °C