Wailoa River State Recreation Area Weather Forecast

    • 72
    • 85

    Rain Showers

    • 72
    • 86

    Rain Showers

    • 71
    • 85

    Rain Showers

    • 70
    • 84

    Rain Showers

    • 70
    • 83

    Rain Showers

    • 70
    • 83

    Rain Showers

Today 18 Sep Big Island East

Partly sunny with isolated Showers in the Morning, then mostly sunny in the afternoon. Highs 81 to 88 near the shore to around 69 at 4000 feet. Northeast Winds up to 15 Mph shifting to the east in the afternoon. Chance of rain 20 percent.

Tonight 18 Sep Big Island East

Mostly cloudy with isolated Showers. Lows 67 to 73 near the shore to 52 to 60 at 4000 feet. Northeast Winds up to 15 Mph shifting to the northwest after midnight. Chance of rain 20 percent.

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Wailoa River State Recreation Area Temperature Statistics

September Temperature

Hilo, Hilo International Airport (1.2 miles)

  • Lowest 10 September, 2025

    66.9 °F

  • Average September

    76.7 °F

  • Highest 6 September, 2025

    88 °F

Climate (2020–Present)

Hilo, Hilo International Airport (1.2 miles)

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  • Average Low 2020–2025

    68.2 °F

  • Average 2020–2025

    74.5 °F

  • Average High 2020–2025

    82.4 °F
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