Hilo Rainfall Forecast

  • 90%
  • 90%
  • 75%
  • 60%
  • 60%
  • 60%
  • 70%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Hilo Rainfall Statistics

May Rainfall

Hilo, Hilo International Airport (1.9 miles)

  • Total Rainfall May

    7.2in

  • Daily Average May

    0.4in

  • Wettest Day 17 May, 2026

    1.7in

  • Wet Days May

    15/19 (79%)

Climate (2010–Present)

Hilo, Hilo International Airport (1.9 miles)

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  • Annual Average 2021–2025

    99.9in

  • Monthly Average 2021–2026

    8.1in

  • Daily Average 2021–2026

    0.3in

  • Wettest Day 18 February, 2023

    11.1in
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