Kaunakakai Weather in December

What's the weather like in Kaunakakai (Hawaii) in December 2025?

The climate in Kaunakakai during December can be summarized as warm, humid and a little damp.

December is in the winter in Kaunakakai and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 18°C (64°F) is normal.

Kaunakakai weather averages (imperial / metric)
Daytime temperature 26.4°C 79.4°F
Nightly temperature 17.9°C 64.1°F
Average temperature 22.1°C 71.8°F
Daily sunshine 7 hrs
Avg rainfall 96 mm 3.8 ins
Rainy days 11 days
Sea temperature 25°C 77°F
Humidity 75%
Windspeed 18kph 11 mph

On average December is the 2nd wettest month of the year in Kaunakakai with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 7 hours of sunshine per day.

December temperatures in Kaunakakai

Kaunakakai average temperature in December

December rainfall

Kaunakakai average rain in December

December hourly sunshine

Kaunakakai average rain in December

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Kaunakakai in December 2025.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Kaunakakai weather stats

Kaunakakai weather statistics
Hottest month: August 29.4°C 84.9°F
Driest month: June 11mm 0.4ins
Sunniest month: September 9.4hrs
Coldest month: January 25.4°C 77.7°F
Wettest month: January 114mm 4.5ins
Map showing location of Kaunakakai (21.09333, -157.02389) Kaunakakai map pin © Google

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