Swan River - Heirisson Island Rainfall Forecast

Today 21 Oct
35%< 1 mm
Thu 22 Oct
70%< 2 mm
Fri 23 Oct
65%< 2 mm
Sat 24 Oct
45%< 1 mm
Sun 25 Oct
20%< 1 mm
Mon 26 Oct
15%< 1 mm
Tue 27 Oct
20%< 1 mm

Swan River - Heirisson Island Rainfall Statistics View More

October Rainfall

Perth Metro (5 km)

Total Rainfall 2026
508.4 mm
Daily Average 2026
1.7 mm
Wettest Day 28 March, 2026
62.8 mm
Wet Days 2026
98/294 (33%)
Total Rainfall September
38.6 mm
Daily Average September
1.3 mm
Wettest Day 30 September, 2026
13.6 mm
Wet Days September
14/30 (47%)
Total Rainfall October
23.2 mm
Daily Average October
1.2 mm
Wettest Day 8 October, 2026
9.6 mm
Wet Days October
9/21 (43%)

Climate (2021–2025)

Perth Metro (5 km)

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Annual Average 2021–2025
718.7 mm
Monthly Average 2021–2026
56 mm
Daily Average 2021–2026
1.8 mm
Wettest Day 5 June, 2023
71.2 mm

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