Kapaau Weather Forecast

    • 69
    • 80

    Rain Showers

    • 69
    • 79

    Rain Showers

    • 69
    • 79

    Rain Showers

    • 70
    • 79

    Rain Showers

    • 70
    • 80

    Rain Showers

    • 70
    • 80

    Rain Showers

Today 21 May Big Island North

Windy. Mostly sunny with scattered Showers. Highs around 79 near the shore to 66 to 77 near 3000 feet. East Winds 10 to 30 Mph with Gusts to 50 Mph. Chance of rain 50 percent.

Tonight 21 May Big Island North

Breezy. Mostly cloudy with scattered Showers. Lows 62 to 70 near the shore to 54 to 63 near 3000 feet. East Winds 10 to 25 Mph with Gusts to 50 Mph. Chance of rain 50 percent.

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Kapaau Temperature Statistics

May Temperature

Kailua / Kona, Keahole Airport (37.3 miles)

  • Lowest 12 May, 2026

    71.1 °F
  • Average May

    79.5 °F
  • Highest 8 May, 2026

    87.1 °F

Climate (2021–Present)

Kailua / Kona, Keahole Airport (37.3 miles)

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  • Average Low 2021–2026

    73.3 °F
  • Average 2021–2026

    79.1 °F
  • Average High 2021–2026

    84.7 °F
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