Portland Harbour Rainfall Forecast

  • 100%5–10mm
  • 90%1–5mm
  • 100%10–20mm
  • 100%10–20mm
  • 100%10–20mm
  • 95%5–15mm
  • 85%1–5mm
Graph Plots Open in Graphs

  • Rainfall Probability Forecast Bureau of Meteorology

  • Rain Today Real-Time

Portland Harbour Rainfall Statistics View More

May Rainfall

Cape Nelson Lighthouse (km)

  • Total Rainfall May

    55.8mm

  • Daily Average May

    1.9mm

  • Wettest Day 5 May, 2026

    15.4mm

  • Wet Days May

    17/30 (57%)

Climate (2010–Present)

Cape Nelson Lighthouse (km)

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  • Annual Average 2021–2025

    704.4mm

  • Monthly Average 2021–2026

    58.2mm

  • Daily Average 2021–2026

    1.9mm

  • Wettest Day 1 December, 2024

    57mm
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