Twin Rocks Weather Forecast
- 13
- 32
Cloudy
- 15
- 26
Shower or two
- 13
- 24
Cloudy
- 13
- 26
Cloudy
- 14
- 30
Partly cloudy
- 17
- 33
Showers increasing
- 16
- 25
Showers easing
Today 23 Sep West Coast
Partly cloudy. Medium chance of showers west of Nullarbor, near zero chance elsewhere. Winds northwest to northeasterly 15 to 20 km/h tending southeast to southwesterly in the late afternoon then tending northeast to southeasterly in the evening.
Far West Coastal Waters
WA-SA Border to Fowlers Bay- Wind
- Northeast to southeasterly 10 to 15 knots tending northwest to northeasterly in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 2 metres.
- Weather
- Cloudy. 50% chance of showers.
- Weather Situation
- A high pressure system centred over the Tasman Sea extends a ridge westwards over central and eastern SA and a low pressure trough extends from WA over western SA. This trough will be very slow-moving for the rest of the week and over the weekend and the ridge will move away to the east. A weakening cold front will slip across southern coasts late Thursday and early Friday.
Twin Rocks Temperature Statistics View More
September Temperature
Nullarbor (22km)
Lowest 6 September, 2026
2.2 °CAverage September
15.5 °CHighest 19 September, 2026
33.3 °C
Climate (2021–2026)
Nullarbor (22km)
Average Low 2021–2026
11.3 °CAverage 2021–2026
16.8 °CAverage High 2021–2026
23.8 °C