Port Bonython Weather Forecast
- 11
- 17
Cloudy
- 10
- 19
Possible shower
- 12
- 19
Shower or two
- 11
- 19
Partly cloudy
- 10
- 20
Mostly sunny
- 10
- 22
Partly cloudy
- 12
- 22
Shower or two
Today 7 May Whyalla
Cloudy. Winds southerly 20 to 30 km/h decreasing to 15 to 20 km/h in the late evening.
Spencer Gulf Coastal Waters
- Wind
- Southerly 10 to 15 knots, reaching up to 20 knots north of Cowell to Wallaroo during the afternoon and evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres north of Cowell to Wallaroo.
- 1st Swell
- South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres south of Cowell to Wallaroo.
- Weather
- Cloudy.
- Weather Situation
- A high pressure system south of Western Australia will move slowly eastwards south of the Bight during the next few days. The high will then move eastwards early next week to be centred southeast of Tasmania late Tuesday.
Port Bonython Temperature Statistics View More
May Temperature
Whyalla Airport (24km)
Lowest 5 May, 2026
8 °CAverage May
16 °CHighest 1 May, 2026
30.7 °C
Climate (2021–Present)
Whyalla Airport (24km)
Average Low 2021–2026
12 °CAverage 2021–2026
17.5 °CAverage High 2021–2026
23.8 °C