Mary Street Lagoon Weather Forecast
- 19
- 30
Sunny
- 17
- 26
Becoming windy. Mostly sunny
- 15
- 28
Sunny
- 18
- 29
Sunny
- 19
- 34
Sunny
- 25
- 33
Sunny
- 23
- 31
Sunny
Today 20 Feb Mandurah
Sunny. Winds southwesterly 25 to 35 km/h tending southerly 20 to 25 km/h in the late evening.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- South to southwesterly 15 to 20 knots increasing to 20 to 25 knots in the late evening. Winds reaching up to 30 knots in the late evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Southwesterly around 1 metre.
- Weather
- Sunny.
- Weather Situation
- A ridge is building over the southwest of the state and is directing southerly winds through local waters. The ridge will expand over southern WA during the weekend. A trough will move to the west coast on Monday from inland areas and deepen during next week.
Mary Street Lagoon Temperature Statistics View More
February Temperature
Mandurah (0km)
Lowest 17 February, 2026
15 °CAverage February
24.2 °CHighest 1 February, 2026
37.3 °C
Climate (2021–Present)
Mandurah (0km)
Average Low 2021–2026
15.1 °CAverage 2021–2026
19.2 °CAverage High 2021–2026
23.8 °C