St Helens Rainfall Forecast

Today 18 Sep
55%< 1mm
Fri 19 Sep
90%5–10mm
Sat 20 Sep
55%< 1mm
Sun 21 Sep
45%< 1mm
Mon 22 Sep
55%< 2mm
Tue 23 Sep
10%< 1mm
Wed 24 Sep
10%< 1mm

St Helens Rainfall Statistics View More

September Rainfall

St Helens Aerodrome (3km)

Total Rainfall 2025
368.8mm
Daily Average 2025
1.4mm
Wettest Day 10 June, 2025
23.8mm
Wet Days 2025
123/261 (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
12mm
Daily Average September
0.7mm
Wettest Day 8 September, 2025
5.2mm
Wet Days September
8/18 (44%)

Climate (2010–Present)

St Helens Aerodrome (3km)

Take a look at our website widgetsAvailable free! Find Out More

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

Get WillyWeather+ to remove ads