Cornwall Rainfall Forecast

  • 30%< 1mm
  • 50%< 1mm
  • 85%1–5mm
  • 70%1–5mm
  • 60%< 2mm
  • 35%< 1mm
  • 15%< 1mm
Graph Plots Open in Graphs

  • Rainfall Probability Forecast Bureau of Meteorology

  • Rain Today Real-Time

Cornwall Rainfall Statistics View More

September Rainfall

St Helens Aerodrome (27km)

  • Total Rainfall September

    10.2mm

  • Daily Average September

    0.6mm

  • Wettest Day 8 September, 2025

    5.2mm

  • Wet Days September

    7/17 (41%)

Climate (2010–Present)

St Helens Aerodrome (27km)

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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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