Rocky Bay Weather Forecast
- 8
- 16
Partly cloudy
- 10
- 17
Showers developing
- 8
- 13
Showers easing
- 8
- 15
Shower or two
- 8
- 16
Shower or two
- 8
- 14
Showers
- 8
- 13
Showers
Today 20 Jul Mount Lofty Ranges
Partly cloudy. Slight chance of a shower. Winds northerly 15 to 25 km/h becoming light in the late afternoon then becoming north to northeasterly 15 to 20 km/h in the late evening. Daytime maximum temperatures between 13 and 17.
South Central Coastal Waters
- Wind
- Northerly 15 to 25 knots.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres around midday.
- 1st Swell
- Southwesterly 4 to 5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A weak high pressure ridge over coastal waters will drift eastward as a strong cold front builds in the west on Monday. This front will sweep across coastal waters through Monday, exiting the south east early on Tuesday. A west to northwesterly airstream will establish through the mid week with a ridge over the north of the state.
Rocky Bay Temperature Statistics View More
July Temperature
Hindmarsh Island (12km)
Lowest 3 July, 2025
5.1 °CAverage July
11.8 °CHighest 12 July, 2025
17.6 °C
Climate (2020–Present)
Hindmarsh Island (12km)
Average Low 2020–2025
12 °CAverage 2020–2025
15.7 °CAverage High 2020–2025
20.6 °C