Cape Thomas Weather Forecast
- 9
- 14
Cloudy
- 8
- 15
Cloud clearing
- 6
- 17
Mostly sunny
- 9
- 19
Mostly sunny
- 13
- 20
Possible shower
- 12
- 18
Shower or two
- 10
- 15
Shower or two
Today 9 Sep Lower South East
Cloudy. Winds southerly 20 to 30 km/h becoming light in the evening.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Southerly 15 to 20 knots.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre later in the evening.
- 1st Swell
- Southwesterly 5 to 6 metres.
- Weather
- Cloudy.
- Weather Situation
- A high pressure system centred south of the Bight extends a ridge across the south of SA. The main high centre will gradually move eastwards to be centred to the east of SA on Friday. A trough over the interior of WA will remain stationary for most of the week and may extend into the far west of SA at times. Another low pressure trough will approach from the west on Saturday and move across SA on Sunday.
Cape Thomas Temperature Statistics View More
September Temperature
Robe (10km)
Lowest 8 September, 2026
6 °CAverage September
13.8 °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