Weeroona Bay Weather Forecast
- 18
- 25
Clear
- 19
- 25
Windy. Partly cloudy
- 14
- 27
Wind easing. Sunny
- 16
- 37
Sunny
- 26
- 43
Late cool change
- 21
- 32
Sunny
- 20
- 39
Sunny
Today 20 Jan Whyalla
Clear. Winds south to southwesterly 35 to 45 km/h.
Spencer Gulf Coastal Waters
- Wind
- Southerly 20 to 30 knots.
- Seas
- 2 to 2.5 metres.
- 1st Swell
- South to southwesterly around 1 metre south of Cowell to Wallaroo.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure system south of WA maintains a ridge over coastal waters. The high will start to move eastwards on Thursday to be in the Tasman Sea on Friday, whilst a trough of low pressure approaches from the west. The trough will move over SA on Saturday reaching the northeast in the evening, followed by another high pressure system moving over waters to the south.
Weeroona Bay Temperature Statistics View More
January Temperature
Whyalla Airport (23km)
Lowest 6 January, 2026
15 °CAverage January
23.6 °CHighest 8 January, 2026
47.8 °C
Climate (2021–Present)
Whyalla Airport (23km)
Average Low 2021–2026
11.8 °CAverage 2021–2026
17.5 °CAverage High 2021–2026
23.8 °C