Hanalei, Kauai weather in December 2025

Expect daytime maximum temperatures of 79°F in Hanalei, Kauai, Hawaii in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 16 days with some rainfall and typically 8.1 inches of rainfall in the month.

  • 79°F maximum daytime temperature in December in Hanalei, Kauai79
    79°F max day temperature
  • 5 hours of sunshine per day
  • 16 days with some rainfall in December in Hanalei, Kauai16
    16 days with some rainfall
  • 66°F minimum night-time temperature in December in Hanalei, Kauai66
    66°F min night temperature
  • 11 hours of daylight per day in December in Hanalei, Kauai11
    11 hours of daylight per day
  • Low heat & humidity in December in Hanalei, KauaiL
    Low heat & humidity
  • 8.1 inches monthly rainfall in December in Hanalei, Kauai8.1
    8.1 inches of monthly rainfall
  • UV (maximum) index 6 (High) in December in Hanalei, Kauai6
    6 (High) UV index
  • 77°F sea temperature in December in Hanalei, Kauai77
    77°F sea temperature

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Hanalei, Kauai by month

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The December weather guide for Hawaii (Hanalei, Kauai) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Hanalei, Kauai in December?

Daytime temperatures usually reach 79°F in Hanalei, Kauai in December with low heat and humidity, falling to 66°F at night.

How sunny is it in Hanalei, Kauai in December?

There are normally 5 hours of bright sunshine each day in Hanalei, Kauai in December - that's 49% of daylight hours.

How warm is the sea around Hanalei, Kauai in December?

The average sea temperature around Hanalei, Kauai in December is 77°F.

Does it rain in Hanalei, Kauai in December?

There are usually 16 days with some rain in Hanalei, Kauai in December and the average monthly rainfall is 8.1 inches.

Hanalei, Kauai December sunrise & sunset times

Browse the sunrise and sunset times for Hanalei, Kauai in December 2025. Select a month to view Hanalei, Kauai sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:01 17:53
Tuesday, 16th December 2025 07:10 17:57
Wednesday, 31st December 2025 07:17 18:05

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