Hanalei, Kauai weather in August 2024

Expect 29°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Hanalei, Kauai in August. Check more long-term weather averages for Hanalei, Kauai in August before you book your next holiday to Hawaii in 2024/2025.

  • 29°C maximum daytime temperature in August in Hanalei, Kauai29
    29°C max day temperature
  • 9 hours of sunshine per day
  • 17 days with some rainfall in August in Hanalei, Kauai17
    17 days with some rainfall
  • 23°C minimum night-time temperature in August in Hanalei, Kauai23
    23°C min night temperature
  • 13 hours of daylight per day in August in Hanalei, Kauai13
    13 hours of daylight per day
  • High heat & humidity in August in Hanalei, KauaiH
    High heat & humidity
  • 145 mm monthly rainfall in August in Hanalei, Kauai145
    145 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Hanalei, Kauai11
    11+ (Extreme) UV index
  • 26°C sea temperature in August in Hanalei, Kauai26
    26°C sea temperature

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