Cape Thomas Weather Forecast
- 11
- 15
Cloudy
- 10
- 17
Showers increasing
- 11
- 16
Showers. Windy
- 11
- 15
Shower or two
- 11
- 15
Possible morning shower
- 7
- 15
Cloudy
- 9
- 15
Partly cloudy
Today 3 Sep Lower South East
Cloudy. Slight chance of a shower. Winds westerly 25 to 35 km/h decreasing to 15 to 25 km/h in the late afternoon then becoming west to northwesterly and light in the evening. Daytime maximum temperatures around 16.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Westerly 15 to 20 knots, reaching up to 25 knots south of Port MacDonnell in the late afternoon.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- Southwesterly 5 to 6 metres.
- Weather
- Cloudy.
- Weather Situation
- A high pressure ridge over SA will move to the east early Friday, as a trough moves over the state during the day, followed by a strong cold front early Saturday. A high pressure system will then move across the state, behind the front, and merge with another high located to the southwest of WA on Sunday to extend a ridge across much of SA into next week. A low pressure system is also expected to move in vicinity of the WA border late Sunday and may extend a trough into far west SA into next week.
Cape Thomas Temperature Statistics View More
September Temperature
Robe (10km)
Lowest 1 September, 2026
7.4 °CAverage September
14.2 °CHighest 1 September, 2026
16.6 °C
Climate (2021–2026)
Robe (10km)
Average Low 2021–2026
11.3 °CAverage 2021–2026
16 °CAverage High 2021–2026
18.5 °C