Geltwood Beach Weather Forecast
- 6
- 23
Clear
- 11
- 31
Partly cloudy
- 13
- 33
Partly cloudy
- 16
- 26
Cloudy
- 12
- 20
Shower
- 11
- 20
Shower
- 12
- 19
Shower
Today 16 Dec Lower South East
Clear. Winds southeasterly 15 to 25 km/h becoming light in the late evening.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- East to southeasterly 10 to 15 knots, reaching up to 20 knots inshore during the afternoon and evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres inshore by early evening.
- 1st Swell
- South to southwesterly 1.5 to 2.5 metres.
- Weather
- Clear.
- Weather Situation
- A high pressure system to the south of the state will maintain a ridge across SA as it drifts into the Tasman by Wednesday. A trough of low pressure will briefly enter the far northeast of SA with another trough slowing moving across the south and west on Thursday. A south to southwesterly flow will establish across the coasts on Friday.
Geltwood Beach Temperature Statistics View More
December Temperature
Mount Gambier Airport (55km)
Lowest 7 December, 2025
4.7 °CAverage December
15 °CHighest 12 December, 2025
32.6 °C
Climate (2020–Present)
Mount Gambier Airport (55km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
13.6 °CAverage High 2020–2025
19.9 °C