Onslow Weather Forecast
- 21
- 33
Mostly sunny
- 19
- 33
Sunny
- 19
- 35
Sunny
- 22
- 35
Sunny
- 21
- 34
Mostly sunny
- 20
- 34
Sunny
- 20
- 34
Sunny
Today 18 Sep Pilbara
Partly cloudy. Winds northeast to southeasterly 25 to 35 km/h tending northwest to northeasterly 20 to 30 km/h in the middle of the day then tending northwest to southwesterly 15 to 20 km/h in the late evening. Daytime maximum temperatures 33 to 38.
Pilbara West Coastal Waters
Cape Preston to North West Cape- Wind
- Variable about 10 knots becoming west to northwesterly 10 to 15 knots in the late afternoon then tending west to southwesterly in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
- Weather
- Mostly sunny.
- Weather Situation
- A trough lies across the western Pilbara coast today, before moving inland over the weekend, leaving a weak ridge behind. A new trough then develops about the Pilbara coast later Sunday.
Onslow Temperature Statistics View More
September Temperature
Onslow Airport (3km)
Lowest 6 September, 2026
15.3 °CAverage September
23.5 °CHighest 15 September, 2026
34.4 °C
Climate (2021–2026)
Onslow Airport (3km)
Average Low 2021–2026
20.5 °CAverage 2021–2026
25.8 °CAverage High 2021–2026
32.8 °C