Port Bonython Weather Forecast
- 13
- 27
Sunny
- 15
- 28
Partly cloudy
- 16
- 31
Sunny
- 19
- 24
Cloud clearing
- 17
- 26
Mostly sunny
- 16
- 25
Mostly sunny
- 17
- 27
Mostly sunny
Today 29 Mar Whyalla
Sunny. Winds northeast to southeasterly 15 to 20 km/h becoming light in the early morning then becoming north to northeasterly 15 to 20 km/h in the morning.
Spencer Gulf Coastal Waters
- Wind
- East to southeasterly 10 to 15 knots turning northeasterly in the early morning. Winds reaching up to 20 knots south of Cowell to Wallaroo in the late morning and afternoon.
- Seas
- Around 1 metre.
- 1st Swell
- South to southwesterly around 1 metre, increasing to 1 to 1.5 metres south of Port Neill to Port Victoria.
- Weather
- Mostly sunny.
Port Bonython Temperature Statistics View More
March Temperature
Whyalla Airport (24km)
Lowest 14 March, 2026
10.8 °CAverage March
20.9 °CHighest 10 March, 2026
34.9 °C
Climate (2021–Present)
Whyalla Airport (24km)
Average Low 2021–2026
11.9 °CAverage 2021–2026
17.5 °CAverage High 2021–2026
23.8 °C