Port of Whyalla Weather Forecast
- 16
- 30
Windy. Clear
- 17
- 36
Sunny
- 20
- 43
Sunny
- 21
- 40
Sunny
- 22
- 38
Becoming windy. Sunny
- 19
- 25
Windy. Cloudy
- 14
- 26
Becoming windy. Partly cloudy
Today 5 Jan Whyalla
Clear. Winds southerly 25 to 40 km/h.
Spencer Gulf Coastal Waters
- Wind
- South to southwesterly 15 to 20 knots, reaching up to 25 knots north of Cowell to Wallaroo during the afternoon and evening. Winds tending south to southeasterly in the evening.
- Seas
- Around 1 metre, increasing to 1 to 2 metres north of Cowell to Wallaroo.
- 1st Swell
- South to southwesterly below 1 metre.
- Weather
- Clear.
- Weather Situation
- A high pressure system over the southeast of SA will drift over Victoria on Tuesday before establishing in the Tasman Sea. Meanwhile a broad trough will continue to linger over the far northeast. On Wednesday a new trough will push across the south and settle over the southern pastorals and the east. This trough will be pushed further inland as a southwesterly airstream establishes on Friday with a ridge establishing across the south.
Port of Whyalla Temperature Statistics View More
January Temperature
Whyalla Airport (8km)
Lowest 2 January, 2026
15.9 °CAverage January
21.1 °CHighest 2 January, 2026
31.6 °C
Climate (2021–Present)
Whyalla Airport (8km)
Average Low 2021–2026
11.8 °CAverage 2021–2026
17.4 °CAverage High 2021–2026
23.7 °C