Sleaford Islands Weather Forecast
- 13
- 25
Showers increasing
- 12
- 18
Rain easing
- 9
- 17
Partly cloudy
- 10
- 18
Showers
- 13
- 19
Showers
- 12
- 17
Showers
- 9
- 17
Showers
Today 12 Jun Port Lincoln
Cloudy. Very high chance of showers, most likely later tonight. Winds northerly 25 to 40 km/h tending northwesterly 25 to 30 km/h in the late evening.
Central Coastal Waters
- Wind
- Northerly 20 to 30 knots, reaching up to 35 knots in the west during the day. Winds turning northwesterly 25 to 30 knots in the evening.
- Seas
- 1 to 1.5 metres, increasing to 2 to 3 metres during the morning.
- 1st Swell
- Southwesterly 3 metres, increasing to 3 to 4 metres by early evening.
- Weather
- Cloudy. 90% chance of rain.
- Weather Situation
- A high pressure system in the Tasman Sea maintains a ridge over SA. A cold front will move across the Bight on Friday with a weak high pressure system developing over southern Australia over the weekend. A trough of low pressure moves into the far west on Monday as an associated low pressure system moves into the Bight.
Sleaford Islands Temperature Statistics View More
June Temperature
Port Lincoln Airport (38km)
Lowest 11 June, 2026
5.9 °CAverage June
12.7 °CHighest 1 June, 2026
21.1 °C
Climate (2021–Present)
Port Lincoln Airport (38km)
Average Low 2021–2026
11.5 °CAverage 2021–2026
15.8 °CAverage High 2021–2026
21.3 °C