Granite Island Weather Forecast
- 13
- 22
Showers
- 13
- 24
Sunny
- 14
- 31
Mostly sunny
- 13
- 24
Possible shower
- 13
- 22
Shower or two
- 12
- 19
Possible shower
- 10
- 20
Shower or two
Today 22 Nov Mount Lofty Ranges
Cloudy. Very high chance of showers, most likely in the late morning and afternoon. The chance of a thunderstorm late this afternoon and evening. Winds east to northeasterly 15 to 25 km/h. Daytime maximum temperatures in the low 20s.
South Central Coastal Waters
- Wind
- East to southeasterly 15 to 25 knots.
- Seas
- 1 to 2 metres.
- 1st Swell
- Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres during the afternoon.
- Weather
- Cloudy. 80% chance of showers. The chance of a thunderstorm during this afternoon and evening.
- Weather Situation
- A low pressure trough near the WA border is forecast to move over SA during the weekend, reaching eastern districts late today and clearing to the east of the state on Sunday. A secondary low pressure trough is expected to move into the west late Sunday, clearing to the east of the state late Monday. Followed by another low and trough on Tuesday.
Granite Island Temperature Statistics View More
November Temperature
Hindmarsh Island (17km)
Lowest 12 November, 2025
7.2 °CAverage November
15.1 °CHighest 2 November, 2025
29.3 °C
Climate (2020–Present)
Hindmarsh Island (17km)
Average Low 2020–2025
12 °CAverage 2020–2025
15.7 °CAverage High 2020–2025
20.5 °C