Cape Northumberland Weather Forecast
- 11
- 18
Cloudy
- 9
- 21
Partly cloudy
- 8
- 25
Shower
- 14
- 25
Shower
- 14
- 19
Shower
- 10
- 23
Shower
- 15
- 26
Shower
Today 3 Apr Lower South East
Partly cloudy. The chance of fog in the north in the early morning. Light winds becoming south to southeasterly 20 to 30 km/h in the morning. Overnight temperatures falling to around 9 with daytime temperatures reaching around 20.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Southerly 10 to 15 knots turning southeasterly in the late morning and early afternoon. Winds reaching up to 20 knots north of Beachport during the afternoon and evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres north of Beachport by early evening.
- 1st Swell
- Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres south of Port MacDonnell during the morning.
- Weather
- Cloudy.
Cape Northumberland Temperature Statistics View More
April Temperature
Mount Gambier Airport (36km)
Lowest 2 April, 2026
8.8 °CAverage April
15.1 °CHighest 1 April, 2026
23.6 °C
Climate (2021–Present)
Mount Gambier Airport (36km)
Average Low 2021–2026
8.8 °CAverage 2021–2026
13.7 °CAverage High 2021–2026
20 °C