Whyalla Weather Forecast
- 14
- 26
Showers. Storm clearing
- 12
- 22
Mostly sunny
- 12
- 24
Partly cloudy
- 12
- 22
Becoming windy. Partly cloudy
- 12
- 21
Cloud clearing
- 12
- 32
Sunny
- 18
- 34
Partly cloudy
Today 28 Nov Whyalla
Partly cloudy. Very high chance of showers, most likely during the morning and afternoon. A thunderstorm likely during the morning and afternoon, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds northwest to northeasterly 20 to 30 km/h tending easterly 20 to 25 km/h in the middle of the day then shifting south to southwesterly in the evening.
Spencer Gulf Coastal Waters
- Wind
- North to northeasterly 10 to 15 knots shifting southwesterly 15 to 20 knots in the late afternoon. Winds reaching up to 25 knots south of Cowell to Wallaroo in the late evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres later in the evening.
- 1st Swell
- South to southwesterly around 1 metre.
- Weather
- Partly cloudy. 90% chance of showers. The chance of a thunderstorm from late this morning.
- Weather Situation
- A weak ridge of high pressure over SA will move east of the state today as a low pressure system moves across the state. A ridge is expected to return to the south on Saturday from a high centred well to the west of WA and persist into early next week.
Whyalla Temperature Statistics View More
November Temperature
Whyalla Airport (6km)
Lowest 12 November, 2025
5.1 °CAverage November
18.5 °CHighest 24 November, 2025
38.9 °C
Climate (2020–Present)
Whyalla Airport (6km)
Average Low 2020–2025
11.8 °CAverage 2020–2025
17.4 °CAverage High 2020–2025
23.7 °C