Old Man Rocks Rainfall Forecast

Today 3 Sep
90%1–5mm
Thu 4 Sep
60%< 2mm
Fri 5 Sep
5%< 1mm
Sat 6 Sep
10%< 1mm
Sun 7 Sep
90%5–10mm
Mon 8 Sep
80%1–5mm
Tue 9 Sep
55%1–5mm

Old Man Rocks Rainfall Statistics View More

September Rainfall

St Helens Aerodrome (12km)

Total Rainfall 2025
356.8mm
Daily Average 2025
1.5mm
Wettest Day 10 June, 2025
23.8mm
Wet Days 2025
115/246 (47%)
Total Rainfall August
45.2mm
Daily Average August
1.5mm
Wettest Day 30 August, 2025
11.2mm
Wet Days August
18/31 (58%)
Total Rainfall September
0mm
Daily Average September
0mm
Wettest Day 1 September, 2025
0mm
Wet Days September
–

Climate (2010–Present)

St Helens Aerodrome (12km)

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Annual Average 2020–2024
840.8mm
Monthly Average 2020–2025
68.7mm
Daily Average 2020–2025
2.3mm
Wettest Day 1 December, 2024
99.2mm

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