South Island Weather Forecast
- 24
- 29
Clear
- 24
- 30
Sunny
- 25
- 28
Sunny
- 24
- 28
Partly cloudy
- 25
- 28
Shower
- 24
- 27
Shower
- 24
- 27
Shower
Today 20 Apr Pilbara
Mostly sunny. Winds northwest to northeasterly 15 to 25 km/h tending northwest to southwesterly in the late evening.
Pilbara West Coastal Waters
Cape Preston to North West Cape- Wind
- Southwesterly 10 to 15 knots, reaching up to 20 knots west of Onslow in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly 1 to 1.5 metres offshore, decreasing to around 1 metre by early evening.
- Weather
- Sunny.
- Weather Situation
- A trough is moving inland across the Pilbara as ridge develops about the Gascoyne coast, extending to the Kimberley west coast. The trough will move back to the Pilbara coast on Wednesday once the ridge moves away.
South Island Temperature Statistics View More
April Temperature
Onslow Airport (31km)
Lowest 10 April, 2026
19.5 °CAverage April
26.4 °CHighest 4 April, 2026
35.5 °C
Climate (2021–Present)
Onslow Airport (31km)
Average Low 2021–2026
20.5 °CAverage 2021–2026
25.8 °CAverage High 2021–2026
32.8 °C