Whyalla Marina Weather Forecast
- 17
- 24
Becoming windy. Partly cloudy
- 13
- 23
Mostly sunny
- 13
- 30
Sunny
- 16
- 29
Sunny
- 18
- 28
Partly cloudy
- 18
- 31
Partly cloudy
- 19
- 36
Partly cloudy
Today 6 Dec Whyalla
Partly cloudy. Winds southerly 35 to 50 km/h.
Spencer Gulf Coastal Waters
- Wind
- Southwesterly 15 to 25 knots turning southerly during the afternoon and evening. Winds reaching up to 30 knots during the afternoon and evening.
- Seas
- 1 to 1.5 metres, increasing to 2 to 2.5 metres during the afternoon.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
- Weather
- Partly cloudy.
- Weather Situation
- A weak cold front will move across the southern coastal districts today as the high centre becomes established over the western Bight. The high will move slowly eastwards on Sunday and early next week to be centred over the Tasman Sea by Monday. Another weak cold front clips the southeast late Monday, before another high pressure system develops south of the Bight on Tuesday.
Whyalla Marina Temperature Statistics View More
December Temperature
Whyalla Airport (6km)
Lowest 2 December, 2025
10.2 °CAverage December
21.6 °CHighest 4 December, 2025
40.7 °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