Port Pirie River - Shag Creek Entrance Weather Forecast
- 12
- 34
Mostly sunny
- 20
- 39
Late cool change
- 15
- 31
Mostly sunny
- 16
- 25
Morning shower or two
- 11
- 25
Sunny
- 11
- 32
Sunny
- 14
- 33
Sunny
Today 3 Dec Mid North
Mostly sunny. Winds north to northeasterly 15 to 25 km/h turning northwesterly 20 to 30 km/h during the morning then tending northwest to northeasterly 15 to 20 km/h in the evening. Overnight temperatures falling to around 10 with daytime temperatures reaching the low to mid 30s.
Spencer Gulf Coastal Waters
- Wind
- North to northeasterly 10 to 15 knots, reaching up to 20 knots near the Yorke Peninsula coast in the late morning. Winds tending east to northeasterly in the late afternoon then tending north to northeasterly in the late evening.
- Seas
- Around 1 metre.
- 1st Swell
- South to southwesterly around 1 metre.
- Weather
- Mostly sunny.
- Weather Situation
- A high pressure system will continue to slowly move eastwards to be centred over the Tasman Sea by Wednesday evening. A low pressure trough will then move into the west of SA late Wednesday and extend northeastwards during Thursday, followed by another ridge of high pressure. A weak cold front clips the far southeast Saturday morning.
Port Pirie River - Shag Creek Entrance Temperature Statistics View More
December Temperature
Whyalla Airport (48km)
Lowest 2 December, 2025
10.2 °CAverage December
15.8 °CHighest 1 December, 2025
21.9 °C
Climate (2020–Present)
Whyalla Airport (48km)
Average Low 2020–2025
11.8 °CAverage 2020–2025
17.4 °CAverage High 2020–2025
23.7 °C