Port Germein Weather Forecast
- 16
- 32
Sunny
- 20
- 34
Partly cloudy
- 21
- 34
Possible afternoon storm
- 22
- 38
Partly cloudy
- 19
- 28
Cloud clearing
- 14
- 27
Cloud clearing
- 14
- 28
Mostly sunny
Today 9 Dec Mid North
Sunny. Winds northeast to southeasterly 15 to 20 km/h tending southeast to southwesterly 20 to 30 km/h in the middle of the day then becoming southeasterly 15 to 25 km/h in the late evening. Daytime maximum temperatures in the low to mid 30s.
Spencer Gulf Coastal Waters
- Wind
- South to southeasterly 15 to 20 knots, reaching up to 25 knots north of Cowell to Wallaroo in the evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo during the afternoon.
- Weather
- Mostly sunny.
- Weather Situation
- A broad ridge extends over inland parts of the state, another high pressure system develops south of the Bight, strengthening the ridge over the state ahead of a trough of low pressure developing across the far northwest late Tuesday persisting late into the week.
Port Germein Temperature Statistics View More
December Temperature
Whyalla Airport (44km)
Lowest 2 December, 2025
10.2 °CAverage December
20.8 °CHighest 4 December, 2025
40.7 °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