Town Jetty Weather Forecast
- 14
- 24
Partly cloudy
- 11
- 23
Cloudy
- 13
- 23
Cloudy
- 12
- 23
Cloudy
- 13
- 23
Partly cloudy
- 13
- 24
Mostly sunny
- 15
- 31
Sunny
Today 21 Dec Port Lincoln
Partly cloudy. Slight chance of a shower. Winds westerly 30 to 40 km/h tending southwesterly in the middle of the day then tending southerly 25 to 35 km/h in the evening.
Spencer Gulf Coastal Waters
- Wind
- Westerly 20 to 30 knots turning southerly in the early afternoon.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- South to southwesterly below 1 metre.
- Weather
- Mostly sunny. The chance of a thunderstorm in the late morning and early afternoon.
- Weather Situation
- A broad trough of low pressure lingers over the east and northern parts of the State. A low pressure system lies south of the bight and moves east to combine with the trough early Sunday. The combined low pressure system and trough then moves east to clear SA by late Sunday. A high pressure ridge then extends over the west and south of the State behind the low pressure system during Sunday. The high pressure ridge extends across the entire State and Coastal Waters by late Sunday and persists from Monday to Thursday.
Town Jetty Temperature Statistics View More
December Temperature
Port Lincoln Airport (13km)
Lowest 7 December, 2025
8.1 °CAverage December
18.8 °CHighest 18 December, 2025
42.7 °C
Climate (2020–Present)
Port Lincoln Airport (13km)
Average Low 2020–2025
11.4 °CAverage 2020–2025
15.8 °CAverage High 2020–2025
21.3 °C