South Island Weather Forecast
- 22
- 25
Clear
- 19
- 24
Partly cloudy
- 20
- 25
Sunny
- 19
- 24
Partly cloudy
- 18
- 24
Sunny
- 19
- 23
Sunny
- 20
- 23
Sunny
Today 3 Sep Pilbara
Mostly sunny. Winds west to northwesterly 20 to 30 km/h.
Pilbara West Coastal Waters
Cape Preston to North West Cape- Wind
- West to southwesterly 10 to 15 knots, reaching up to 20 knots west of Onslow in the evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres about offshore western waters by early evening.
- 1st Swell
- West to southwesterly around 1 metre inshore, increasing to 1.5 to 2 metres about offshore western waters.
- Weather
- Sunny.
- Weather Situation
- A trough across the Pilbara and southwest Kimberley is moving inland and weakening. A ridge over the Gascoyne brings southerly winds to the west Pilbara waters, while a broad southwest to northwest flow continues over the remainder. The ridge will weaken on Saturday, with southwesterly winds freshening over Pilbara waters as a new trough forms.
South Island Temperature Statistics View More
September Temperature
Onslow Airport (31km)
Lowest 2 September, 2026
17.1 °CAverage September
22.2 °CHighest 1 September, 2026
31.7 °C
Climate (2021–2026)
Onslow Airport (31km)
Average Low 2021–2026
20.4 °CAverage 2021–2026
25.8 °CAverage High 2021–2026
32.8 °C