Swan River - Heirisson Island Weather Forecast
- 15
- 27
Sunny
- 17
- 35
Sunny
- 23
- 41
Sunny
- 23
- 39
Sunny
- 23
- 35
Sunny
- 21
- 29
Sunny
- 15
- 25
Partly cloudy
Today 18 Jan Perth
Sunny. Winds southeasterly 15 to 20 km/h turning south to southwesterly 25 to 35 km/h in the late morning then becoming light in the late evening.
Melville Waters
- Wind
- South to southeasterly about 10 knots tending southwesterly 10 to 15 knots during the afternoon then tending southerly during the evening.
- Weather
- Sunny.
Swan River - Heirisson Island Temperature Statistics View More
January Temperature
Perth Metro (5km)
Lowest 11 January, 2026
16.1 °CAverage January
24.4 °CHighest 1 January, 2026
37.3 °C
Climate (2021–Present)
Perth Metro (5km)
Average Low 2021–2026
13.4 °CAverage 2021–2026
18.9 °CAverage High 2021–2026
25.4 °C