Sleaford Islands Weather Forecast
- 12
- 19
Possible shower
- 11
- 16
Cloudy
- 10
- 17
Cloudy
- 10
- 17
Cloud clearing
- 10
- 24
Sunny
- 12
- 27
Sunny
- 13
- 20
Cloudy
Today 14 Sep Port Lincoln
Cloudy. Medium chance of showers, most likely this evening. Winds west to southwesterly 15 to 25 km/h becoming light in the evening then becoming southwesterly 15 to 20 km/h in the late evening.
Central Coastal Waters
- Wind
- Westerly 10 to 15 knots tending southwesterly 15 to 20 knots in the evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres in the west by early evening.
- 1st Swell
- Southwesterly 2 to 2.5 metres, tending westerly 2.5 metres during the afternoon, then tending west to southwesterly 2 to 2.5 metres by early evening.
- Weather
- Partly cloudy. 50% chance of showers.
- Weather Situation
- A high pressure ridge builds across much of SA, as a cold front slips across southern coasts late today into early Tuesday. A high pressure system will then move across waters to the south throughout the week to be centred over Victoria by Thursday. A low pressure trough in the interior of WA may extend into far western parts at times before weakening by late Tuesday.
Sleaford Islands Temperature Statistics View More
September Temperature
Port Lincoln Airport (38km)
Lowest 11 September, 2026
5.6 °CAverage September
13.9 °CHighest 4 September, 2026
25.1 °C
Climate (2021–2026)
Port Lincoln Airport (38km)
Average Low 2021–2026
11.5 °CAverage 2021–2026
15.8 °CAverage High 2021–2026
21.3 °C