Cape Northumberland Weather Forecast
- 16
- 24
Partly cloudy
- 10
- 20
Rain
- 10
- 16
Rain
- 8
- 16
Shower
- 7
- 17
Shower
- 10
- 18
Shower
- 10
- 19
Cloudy
Today 23 Oct Lower South East
Partly cloudy. Light winds.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- South to southwesterly below 10 knots.
- Seas
- Below 0.5 metres.
- 1st Swell
- Southwesterly 3 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A trough of low pressure that lies near the NT/WA border will combine with a trough and cold front further south to move over much of SA from Saturday, and over the far northeast on Sunday. A ridge of high pressure will then move into the west from late Sunday and persist over the rest of the state throughout next week.
Cape Northumberland Temperature Statistics View More
October Temperature
Mount Gambier Airport (36 km)
Lowest 7 October, 2026
2.8 °CAverage October
14.7 °CHighest 19 October, 2026
28.9 °C
Climate (2021–2026)
Mount Gambier Airport (36 km)
Average Low 2021–2026
8.9 °CAverage 2021–2026
13.8 °CAverage High 2021–2026
20.1 °C