Port of Whyalla Weather Forecast
- 7
- 20
Partly cloudy
- 10
- 25
Showers
- 11
- 20
Partly cloudy
- 7
- 18
Partly cloudy
- 9
- 19
Partly cloudy
- 9
- 18
Partly cloudy
- 10
- 19
Partly cloudy
Today 3 Sep Whyalla
Partly cloudy. Winds westerly 15 to 20 km/h shifting east to southeasterly in the middle of the day then becoming light in the late afternoon.
Spencer Gulf Coastal Waters
- Wind
- West to northwesterly 10 to 15 knots tending west to southwesterly in the middle of the day then becoming variable about 10 knots in the late afternoon.
- Seas
- 1 to 1.5 metres, decreasing below 1 metre during the afternoon.
- 1st Swell
- South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres south of Port Neill to Port Victoria.
- Weather
- Partly cloudy. 50% chance of showers south of Cowell to Wallaroo, near zero chance elsewhere.
- Weather Situation
- A high pressure ridge will remain over northern parts of SA, as a cold front slips across the southeast early today. The ridge will move to the east early Friday as a trough moves over SA during the day, followed by another cold front early Saturday. Another high pressure system will move across the state, behind the front, and will extend a ridge across central and eastern parts of SA into Sunday. A low pressure system is then expected to develop about the WA border and may extend a trough into far west SA late on Sunday.
Port of Whyalla Temperature Statistics View More
September Temperature
Whyalla Airport (8km)
Lowest 1 September, 2026
9.2 °CAverage September
16.7 °CHighest 1 September, 2026
27.7 °C
Climate (2021–2026)
Whyalla Airport (8km)
Average Low 2021–2026
12 °CAverage 2021–2026
17.6 °CAverage High 2021–2026
23.8 °C