Whyalla Marina Weather Forecast
- 14
- 26
Showers developing. Windy
- 12
- 19
Showers easing
- 8
- 17
Shower or two
- 6
- 17
Shower or two
- 7
- 16
Shower or two. Windy
- 6
- 15
Cloudy
- 4
- 16
Cloudy
Today 25 Aug Whyalla
Cloudy. High chance of showers, most likely late this afternoon and evening. Winds northerly 30 to 45 km/h tending northwesterly 15 to 25 km/h in the late afternoon then becoming light in the evening.
Spencer Gulf Coastal Waters
- Wind
- Northerly 15 to 25 knots, reaching up to 30 knots north of Cowell to Wallaroo in the early afternoon. Winds decreasing to 10 to 15 knots in the late evening.
- Seas
- 1 to 2 metres, decreasing below 1.5 metres later in the evening.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
- Weather
- Cloudy. 80% chance of showers.
- Weather Situation
- A high pressure ridge over eastern states is directing a northerly flow over the SA coastal waters. A complex low pressure system develops well south of the Bight today, extend a series of vigorous cold fronts and troughs over SA through the week.
Whyalla Marina Temperature Statistics View More
August Temperature
Whyalla Airport (6km)
Lowest 2 August, 2025
1.9 °CAverage August
12 °CHighest 11 August, 2025
23.7 °C
Climate (2020–Present)
Whyalla Airport (6km)
Average Low 2020–2025
11.9 °CAverage 2020–2025
17.5 °CAverage High 2020–2025
23.8 °C