Hanalei, Kauai weather

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The weather guide for Hanalei, Kauai, Hawaii shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Hanalei, Kauai?

The hottest time of year in Hanalei, Kauai is normally August. Expect maximum daytime temperatures to reach 29°C with high heat and humidity.

Which month has the most rain in Hanalei, Kauai?

In terms of rainfall, November is usually the wettest month in Hanalei, Kauai with 255mm on average. There are normally 18 days in November with some rain.

When is it sunniest in Hanalei, Kauai?

The sunniest time of year in Hanalei, Kauai is normally August with bright sunshine on average for 67% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Hanalei, Kauai?

The sea is usually at its warmest in Hanalei, Kauai in September when the water temperature reaches 27°C.

Metric (°C / mm)  |  Imperial (°F / inches)

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Compare Hanalei, Kauai weather with the USA

Below the Hanalei, Kauai weather chart shows average maximum daytime temperature for Hanalei, Kauai, Hawaii, USA and the USA (Washington).

Maximum daytime temperature (°C)

Hanalei, Kauai, Hawaii, USA
USA (Washington)

Metric (°C / mm)  |  Imperial (°F / inches)

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Where's hot in Hawaii right now?

Below are the temperatures expected today at popular destinations in Hawaii. Select a destination to compare today's forecast with average weather conditions.

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