Sleaford Islands Weather Forecast
- 12
- 21
Possible shower
- 10
- 21
Mostly sunny
- 12
- 21
Becoming cloudy
- 12
- 20
Shower or two
- 11
- 18
Shower or two
- 11
- 19
Shower or two
- 11
- 19
Possible shower
Today 20 May Port Lincoln
Partly cloudy. Medium chance of showers. Winds westerly 15 to 20 km/h tending southwesterly in the early afternoon then becoming light in the late afternoon.
Central Coastal Waters
- Wind
- Southwesterly 10 to 15 knots turning west to northwesterly below 10 knots in the late morning and afternoon.
- Seas
- Around 1 metre, decreasing below 0.5 metres by early evening.
- 1st Swell
- Southwesterly 2.5 metres.
- Weather
- Partly cloudy. 50% chance of showers.
Sleaford Islands Temperature Statistics View More
May Temperature
Port Lincoln Airport (38km)
Lowest 18 May, 2026
8.6 °CAverage May
15.5 °CHighest 1 May, 2026
30.6 °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