Sandy Island Weather Forecast
- 7
- 15
Showers. Very windy
- 9
- 18
Showers. Very windy
- 9
- 17
Shower or two. Windy
- 10
- 18
Shower or two
- 7
- 18
Partly cloudy
- 8
- 19
Shower or two
- 9
- 19
Shower or two
Today 21 Jun South West
Cloudy. Very high chance of showers, becoming less likely late this afternoon and evening. The chance of a thunderstorm in the southwest, possibly severe. Possible small hail during the morning and afternoon. Damaging winds possible near the coast. Winds west to northwesterly 25 to 35 km/h turning southwesterly 25 to 40 km/h in the late morning. Daytime maximum temperatures between 12 and 15.
Leeuwin Coastal Waters
Cape Naturaliste to Walpole- Wind
- Southerly 30 to 40 knots turning southwesterly 25 to 35 knots in the early afternoon.
- Seas
- 2.5 to 4 metres.
- 1st Swell
- Southwesterly 5 to 7 metres.
- Weather
- Cloudy. 95% chance of showers. The chance of a thunderstorm. Possible small hail in the morning and afternoon.
- Caution
- Large and powerful surf conditions from the late morning are expected to be hazardous for coastal activities such as swimming, surfing and rock fishing.
- Weather Situation
- An active cold front continues to move further inland on the weekend. A ridge of high pressure will build across the Midwest coast from Sunday as another cold front brushes past the south coast.
Sandy Island Temperature Statistics View More
June Temperature
Windy Harbour (3km)
Lowest 5 June, 2025
4.8 °CAverage June
15.3 °CHighest 1 June, 2025
21 °C
Climate (2020–Present)
Windy Harbour (3km)
Average Low 2020–2025
11.2 °CAverage 2020–2025
17 °CAverage High 2020–2025
20.5 °C