Annual average weather for Na Pali Coast, Kapaa, United States

Annual Temperature for Na Pali Coast

The hottest month in Na Pali Coast is September when the average maximum temperature is 30°, average temperature is 26° and average minimum temperature is 23°.

The coolest month in Na Pali Coast is January when the average maximum temperature is 26°, average temperature is 22° and average minimum temperature is 19°.

Annual Sunshine for Na Pali Coast

The longest days in Na Pali Coast are in June, with an average of 13.5 hours of daylight per day. December has the shortest days with an average of 10.8 hours of daylight per day.

The sunniest days in Na Pali Coast are in April which has the most hours of sunshine per day with an average of 8.4 hours of sunshine per day, making it a sunny month with few clouds. December has the least sunshine with an average of 5.1 hours of sunshine per day, making it a sunny month that is overcast at times.

The ultraviolet index is the highest in July when it reaches 12.9 and lowest in December when it reaches 6.2.

An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for Na Pali Coast

The warmest sea water temperatures in Na Pali Coast are found in September when they peak at 28° and lowest in March when they dip to 24°.

The sea is best for swimming between May and December when the temperature is above 26° which is warm and pleasant for relaxing and swimming for long periods.

Annual Rainfall for Na Pali Coast

The wettest month in Na Pali Coast is December with 9.4cm of rain and the most days of rain with 10 days with some rain, a dry time to visit the beach.

The driest month in Na Pali Coast is July with 0.8cm of rain and August has the fewest days of rain with 5.9 days with some rain, a dry time to visit the beach.

Annual Humidity for Na Pali Coast

The most humid month in Na Pali Coast is October with a dew point (an indicator of humidity) of 21° which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.

The least humid month in Na Pali Coast is February with a dew point of 18° which is OK for most but slightly uncomfortable for some.

Annual Wind Speed for Na Pali Coast

The most windy month in Na Pali Coast is January when the average maximum windspeed is 22kmh and the average wind speed is 11kmh.

The least windy month in Na Pali Coast is July when the average maximum windspeed is 18kmh and the average wind speed is 7kmh.

Monthly Averages

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