Sulphur Bay Weather Forecast
- 16
- 19
Mostly sunny
- 15
- 19
Cloudy
- 13
- 21
Partly cloudy
- 13
- 24
Mostly sunny
- 17
- 27
Sunny
- 19
- 23
Shower or two
- 15
- 19
Showers
Today 12 Sep Perth
Sunny. Winds westerly 15 to 20 km/h becoming light in the evening.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Westerly about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly 2 to 3 metres.
- Weather
- Mostly sunny.
- Weather Situation
- A westerly flow will continue over local waters this weekend as a cold front brushes past the southwest coast on Sunday night. Winds turning easterly from Monday as a high develops in the Bight. A trough arrives on the west coast on Tuesday.
Sulphur Bay Temperature Statistics View More
September Temperature
Garden Island (6km)
Lowest 1 September, 2026
10.2 °CAverage September
15.7 °CHighest 9 September, 2026
21.8 °C
Climate (2021–2026)
Garden Island (6km)
Average Low 2021–2026
15.1 °CAverage 2021–2026
18.9 °CAverage High 2021–2026
23.3 °C