Second Creek Entrance Weather Forecast
- 7
- 26
Mostly sunny
- 9
- 23
Possible late shower
- 9
- 17
Shower or two
- 8
- 20
Shower or two
- 9
- 19
Possible morning shower
- 5
- 18
Partly cloudy
- 5
- 21
Cloud clearing
Today 18 Sep Mid North
Mostly sunny. Winds north to northeasterly 15 to 25 km/h tending north to northwesterly 20 to 30 km/h in the late morning. Daytime maximum temperatures in the low to mid 20s.
Spencer Gulf Coastal Waters
- Wind
- Northerly 15 to 20 knots shifting west to southwesterly 10 to 15 knots in the late afternoon.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing to 1 metre by early evening.
- 1st Swell
- South to southwesterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
- Weather
- Mostly sunny.
- Weather Situation
- A high pressure system lies over NSW with a ridge extending into the east of the state. A weak trough will move over South Australian waters later today, settling over the far northeast tonight before clearing on Friday. A cold front will pass over the south during Friday afternoon with a southwesterly flow persisting through the weekend as a ridge of high pressure extends over northern parts of the state.
Second Creek Entrance Temperature Statistics View More
September Temperature
Whyalla Airport (40km)
Lowest 1 September, 2025
2.8 °CAverage September
15.3 °CHighest 6 September, 2025
33.8 °C
Climate (2020–Present)
Whyalla Airport (40km)
Average Low 2020–2025
11.9 °CAverage 2020–2025
17.5 °CAverage High 2020–2025
23.8 °C