St Helens Rainfall Forecast

Today 14 Sep
20%< 1mm
Mon 15 Sep
70%1–5mm
Tue 16 Sep
85%5–10mm
Wed 17 Sep
20%< 1mm
Thu 18 Sep
50%< 1mm
Fri 19 Sep
90%10–20mm
Sat 20 Sep
70%1–5mm

St Helens Rainfall Statistics View More

September Rainfall

St Helens Aerodrome (3km)

Total Rainfall 2025
366.8mm
Daily Average 2025
1.5mm
Wettest Day 10 June, 2025
23.8mm
Wet Days 2025
121/257 (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
10mm
Daily Average September
0.8mm
Wettest Day 8 September, 2025
5.2mm
Wet Days September
6/14 (43%)

Climate (2010–Present)

St Helens Aerodrome (3km)

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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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