Smith Island Weather Forecast
- 12
- 16
Shower
- 10
- 17
Cloudy
- 10
- 21
Partly cloudy
- 12
- 19
Partly cloudy
- 12
- 19
Partly cloudy
- 12
- 19
Partly cloudy
- 11
- 20
Sunny
Today 25 Aug Lower Eyre Peninsula
Partly cloudy. Medium chance of showers this morning. Winds south to southwesterly 25 to 35 km/h decreasing to 15 to 25 km/h in the early afternoon then becoming light in the evening. Daytime maximum temperatures around 17.
Central Coastal Waters
- Wind
- South to southwesterly 15 to 25 knots, reaching up to 30 knots during the morning. Winds tending west to southwesterly below 10 knots during the afternoon and evening.
- Seas
- 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon, then decreasing to 1 metre by early evening.
- 1st Swell
- Southwesterly 2 to 3 metres.
- Weather
- Partly cloudy. 50% chance of showers this morning.
- Weather Situation
- A low pressure system and associated trough continue moving over southern SA today and will move into the eastern states this evening. A high pressure system will move in from the west to be over SA on Wednesday. Another trough approaches the southwest during Thursday evening, and may linger about the western parts of SA before another high moves across the south over the weekend.
Smith Island Temperature Statistics View More
August Temperature
Neptune Island (39km)
Lowest 4 August, 2026
10.4 °CAverage August
13.9 °CHighest 7 August, 2026
17.4 °C
Climate (2021–2026)
Neptune Island (39km)
Average Low 2021–2026
14.3 °CAverage 2021–2026
16.2 °CAverage High 2021–2026
18.8 °C