Spencer Gulf Weather Forecast
- 15
- 21
Sunny
- 18
- 27
Partly cloudy
- 23
- 30
Windy
- 20
- 23
Windy
- 19
- 20
Shower
- 16
- 20
Windy
- 17
- 24
Sunny
Today 2 Dec Flinders
Sunny. Light winds becoming west to southwesterly 15 to 20 km/h in the early afternoon then tending southeast to southwesterly in the evening. Daytime maximum temperatures in the mid to high 20s.
Spencer Gulf Coastal Waters
- Wind
- Variable about 10 knots becoming south to southeasterly 10 to 15 knots in the late afternoon then becoming variable about 10 knots in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- South to southwesterly around 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
- 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.
Spencer Gulf Temperature Statistics View More
December Temperature
Whyalla Airport (38km)
Lowest 1 December, 2025
12.8 °CAverage December
16.5 °CHighest
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Climate (2020–Present)
Whyalla Airport (38km)
Average Low 2020–2025
11.8 °CAverage 2020–2025
17.4 °CAverage High 2020–2025
23.7 °C