Hallett Cove Rainfall Forecast

Today 10 Sep
90%10–15mm
Thu 11 Sep
45%< 1mm
Fri 12 Sep
30%< 1mm
Sat 13 Sep
10%< 1mm
Sun 14 Sep
10%< 1mm
Mon 15 Sep
75%1–5mm
Tue 16 Sep
75%5–10mm

Hallett Cove Rainfall Statistics View More

September Rainfall

Happy Valley Reservoir (9km)

Total Rainfall 2025
378.4mm
Daily Average 2025
1.5mm
Wettest Day 10 July, 2025
39.2mm
Wet Days 2025
73/253 (29%)
Total Rainfall August
59mm
Daily Average August
1.9mm
Wettest Day 28 August, 2025
12.2mm
Wet Days August
14/31 (45%)
Total Rainfall September
9mm
Daily Average September
1.3mm
Wettest Day 1 September, 2025
6.4mm
Wet Days September
4/10 (40%)

Climate (2010–Present)

Happy Valley Reservoir (9km)

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Annual Average 2020–2024
641.8mm
Monthly Average 2020–2025
52.2mm
Daily Average 2020–2025
1.7mm
Wettest Day 5 June, 2022
52mm

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