Curlew Island Weather Forecast
- 7
- 21
Showers
- 10
- 21
Early shower or two
- 8
- 19
Partly cloudy
- 7
- 19
Partly cloudy
- 5
- 19
Partly cloudy
- 6
- 20
Partly cloudy
- 8
- 19
Shower or two
Today 18 Aug Flinders
Cloudy. Very high chance of showers, most likely during this afternoon and evening. The chance of a thunderstorm during this afternoon and evening. Winds northeasterly 15 to 20 km/h turning northerly 15 to 25 km/h in the morning. Daytime maximum temperatures between 16 and 21.
Spencer Gulf Coastal Waters
- Wind
- North to northeasterly 15 to 20 knots tending north to northwesterly in the evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo around midday.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Port Neill to Port Victoria.
- Weather
- Becoming cloudy. 90% chance of showers. The chance of a thunderstorm south of Port Neill to Port Victoria this evening.
- Weather Situation
- A large blocking high pressure system persists over the Tasman Sea. An upper level disturbance responsible for precipitation over central and eastern parts will weaken today as a weakening cold front moves across western parts today and across the southeast on Wednesday. A high pressure ridge is expected to develop over South Australia from Wednesday afternoon with weak troughs clipping the southeast in a broad westerly flow on Thursday and Friday.
Curlew Island Temperature Statistics View More
August Temperature
Port Augusta Airport (6km)
Lowest 1 August, 2026
-1.1 °CAverage August
11.7 °CHighest 7 August, 2026
22.1 °C
Climate (2021–2026)
Port Augusta Airport (6km)
Average Low 2021–2026
12.6 °CAverage 2021–2026
19 °CAverage High 2021–2026
26.2 °C