Cape Northumberland Weather Forecast
- 9
- 17
Shower
- 10
- 17
Cloudy
- 8
- 19
Cloudy
- 9
- 21
Partly cloudy
- 10
- 26
Shower
- 16
- 28
Shower
- 14
- 23
Shower
Today 15 Nov Lower South East
Partly cloudy. Medium chance of showers, becoming less likely in the afternoon. Winds southwesterly 15 to 25 km/h turning southerly 25 to 35 km/h in the late morning and early afternoon then decreasing to 15 to 25 km/h in the evening. Daytime maximum temperatures between 17 and 20.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Southerly 15 to 20 knots, reaching up to 25 knots inshore in the evening.
- Seas
- 1.5 metres, increasing to 1 to 2 metres inshore.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Cloudy.
- Weather Situation
- A high pressure system centred southwest of WA extends a ridge over most of SA. A cold front is expected to clip the southeast of the state today. The high will move slowly eastwards during the week. A trough over inland WA will move over SA mid to late next week.
Cape Northumberland Temperature Statistics View More
November Temperature
Mount Gambier Airport (36 km)
Lowest 8 November, 2026
3.8 °CAverage November
13.5 °CHighest 10 November, 2026
30.8 °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