Port of Whyalla Weather Forecast
- 7
- 18
Clear
- 8
- 20
Sunny
- 9
- 25
Mostly sunny
- 14
- 29
Mostly sunny
- 11
- 20
Cloud clearing
- 10
- 18
Partly cloudy
- 7
- 19
Sunny
Today 10 Sep Whyalla
Clear. Winds southerly 20 to 25 km/h tending southeasterly 15 to 20 km/h in the evening.
Spencer Gulf Coastal Waters
- Wind
- East to southeasterly 10 to 15 knots, reaching up to 20 knots south of Cowell to Wallaroo in the evening.
- Seas
- Around 1 metre.
- 1st Swell
- South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres south of Cowell to Wallaroo.
- Weather
- Clear.
- Weather Situation
- A high pressure system centred south of the Bight extends a ridge across the south of SA. The main high centre will gradually move eastwards to be centred to the east of SA on Friday. A trough over the interior of WA will remain stationary but will weaken later Friday. Another low pressure trough will approach from the west on Saturday and move across SA on Sunday then a cold front will move across southern coasts later Monday. An upper disturbance will move over the far west on Monday.
Port of Whyalla Temperature Statistics View More
September Temperature
Whyalla Airport (8km)
Lowest 6 September, 2026
3.8 °CAverage September
14.5 °CHighest 1 September, 2026
27.7 °C
Climate (2021–2026)
Whyalla Airport (8km)
Average Low 2021–2026
12 °CAverage 2021–2026
17.5 °CAverage High 2021–2026
23.8 °C