Rosetta Harbor Weather Forecast
- 16
- 22
Partly cloudy
- 14
- 19
Cloudy
- 13
- 19
Partly cloudy
- 12
- 23
Sunny
- 13
- 22
Shower or two
- 14
- 23
Possible shower
- 13
- 23
Partly cloudy
Today 11 Mar Mount Lofty Ranges
Slight chance of a shower in the south, most likely in the morning. Mostly sunny afternoon. Winds north to northwesterly 15 to 25 km/h shifting south to southwesterly 20 to 30 km/h during the morning. Daytime maximum temperatures in the low to mid 20s.
South Central Coastal Waters
- Wind
- North to northwesterly 10 to 15 knots shifting south to southwesterly 15 to 25 knots early in the morning. Winds reaching up to 30 knots early in the morning.
- Seas
- Around 1 metre, increasing to 1.5 to 2 metres during the morning, then decreasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Southwesterly 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
- Weather
- Partly cloudy. 80% chance of showers.
- 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.
Rosetta Harbor Temperature Statistics View More
March Temperature
Encounter Bay (3km)
Lowest 5 March, 2026
10.1 °CAverage March
17.3 °CHighest 1 March, 2026
24.7 °C
Climate (2021–Present)
Encounter Bay (3km)
Average Low 2021–2026
10.4 °CAverage 2021–2026
15.2 °CAverage High 2021–2026
20.7 °C