Shag Islands Weather Forecast
- 19
- 25
Partly cloudy
- 15
- 26
Sunny
- 18
- 26
Shower or two
- 18
- 25
Possible morning shower
- 14
- 28
Sunny
- 16
- 31
Sunny
- 19
- 31
Sunny
Today 23 Jan Perth
Partly cloudy. Winds southerly 15 to 25 km/h turning southwesterly 20 to 30 km/h in the morning.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Southerly 15 to 20 knots.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- West to southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then tending southwesterly 1 to 1.5 metres around midday.
- Weather
- Partly cloudy.
- Weather Situation
- A trough moves across the southwest ahead of a weak cold front brushing the south coast today. A weak ridge will then form in the southwest before another cold front approaches over the weekend.
Shag Islands Temperature Statistics View More
January Temperature
Garden Island (5km)
Lowest 18 January, 2026
15.3 °CAverage January
23.1 °CHighest 21 January, 2026
38.9 °C
Climate (2021–Present)
Garden Island (5km)
Average Low 2021–2026
15.1 °CAverage 2021–2026
18.9 °CAverage High 2021–2026
23.3 °C