Cape Thomas Weather Forecast
- 14
- 19
Possible shower. Windy
- 13
- 18
Cloudy
- 12
- 20
Cloudy
- 10
- 21
Mostly sunny
- 12
- 21
Cloudy
- 13
- 20
Partly cloudy
- 12
- 21
Mostly sunny
Today 11 Mar Lower South East
Partly cloudy. Medium chance of showers, becoming less likely in the afternoon. The chance of a thunderstorm in the late morning and early afternoon, possibly severe with damaging winds. Winds westerly 25 to 35 km/h turning southwesterly 25 to 40 km/h in the middle of the day then decreasing to 20 to 30 km/h in the evening. Daytime maximum temperatures in the low 20s.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Southwesterly 15 to 25 knots, reaching up to 30 knots in the late morning and afternoon.
- Seas
- 1 to 1.5 metres, increasing to 2 to 3 metres around midday, then decreasing to 1.5 to 2 metres by early evening.
- 1st Swell
- Southwesterly 1.5 to 2.5 metres.
- Weather
- Partly cloudy. The chance of a thunderstorm in the late morning and early afternoon.
- Weather Situation
- A high pressure system centred in the Tasman Sea extends a ridge over SA. The ridge moves eastwards ahead of a cold front and trough moving across the west and south of SA today. The trough will clear the northeast during Thursday whilst a high pressure ridge moves across waters well to the south. A low pressure trough is expected to develop over the far west of SA on Friday then move slowly eastwards over the weekend.
Cape Thomas Temperature Statistics View More
March Temperature
Robe (10km)
Lowest 4 March, 2026
10.6 °CAverage March
18 °CHighest 1 March, 2026
22 °C
Climate (2021–Present)
Robe (10km)
Average Low 2021–2026
11.3 °CAverage 2021–2026
15.9 °CAverage High 2021–2026
18.5 °C