Whyalla Marina Weather Forecast
- 12
- 24
Cloud clearing
- 14
- 33
Mostly sunny
- 21
- 37
Mostly sunny
- 16
- 28
Mostly sunny
- 17
- 24
Morning shower or two. Windy
- 14
- 24
Mostly sunny
- 14
- 29
Sunny
Today 2 Dec Whyalla
Cloud clearing. Light winds becoming southeasterly 15 to 25 km/h in the middle of the day then tending southerly in the evening.
Spencer Gulf Coastal Waters
- Wind
- South to southwesterly 10 to 15 knots becoming variable about 10 knots in the early morning then becoming southeast to southwesterly 10 to 15 knots in the late afternoon.
- Seas
- Below 1 metre.
- 1st Swell
- South to southwesterly 1 to 1.5 metres.
- Weather
- Cloud clearing.
- Weather Situation
- A high pressure system near the WA and SA border extends a ridge over SA. The high pressure system is expected to slowly move over SA during today and be in the Tasman Sea on Wednesday. A low pressure trough will then move across SA during Wednesday and Thursday, followed by another ridge of high pressure.
Whyalla Marina Temperature Statistics View More
December Temperature
Whyalla Airport (6km)
Lowest 1 December, 2025
12.8 °CAverage December
16.5 °CHighest
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Climate (2020–Present)
Whyalla Airport (6km)
Average Low 2020–2025
11.8 °CAverage 2020–2025
17.4 °CAverage High 2020–2025
23.7 °C