Port Germein Weather Forecast
- 20
- 28
Windy. Clear
- 13
- 25
Cloud clearing
- 14
- 26
Cloud clearing
- 13
- 27
Sunny
- 13
- 30
Sunny
- 14
- 30
Sunny
- 18
- 34
Sunny
Today 21 Dec Mid North
Mostly clear. Winds southwesterly 30 to 45 km/h turning southerly 15 to 25 km/h in the evening.
Spencer Gulf Coastal Waters
- Wind
- Southwesterly 20 to 25 knots, reaching up to 30 knots during the afternoon and evening. Winds turning southerly 15 to 25 knots in the late afternoon.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- South to southwesterly below 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A broad trough of low pressure lies over the far northeast as a ridge of high pressure ridge builds over the west and south of the State during Sunday evening. The high pressure ridge extends across the entire State and Coastal Waters by early Monday and persists until Thursday.
Port Germein Temperature Statistics View More
December Temperature
Whyalla Airport (44km)
Lowest 2 December, 2025
10.2 °CAverage December
22.5 °CHighest 18 December, 2025
42.6 °C
Climate (2020–Present)
Whyalla Airport (44km)
Average Low 2020–2025
11.8 °CAverage 2020–2025
17.4 °CAverage High 2020–2025
23.7 °C