Kapaau (HI) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Kapaau

Kapaau average temperature chart (Celsius) Kapaau average temperature chart (Fahrenheit)
Average monthly temperatures in Kapaau (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 25.5 25.4 25.4 25.7 26.6 27.5 27.8 28.2 28.3 27.9 26.7 25.8
°F 77.9 77.8 77.8 78.2 80 81.5 82 82.8 82.9 82.2 80.1 78.5

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Kapaau monthly rainfall chart (mm) Kapaau monthly rainfall chart (inches)
Average monthly rainfall in Kapaau (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 186 145 229 183 102 74 117 118 64 97 170 155
inches 7.3 5.7 9 7.2 4 2.9 4.6 4.6 2.5 3.8 6.7 6.1
Rainy days 14 14 18 19 17 16 18 17 15 16 17 16

Average annual rainfall in Kapaau: 1504.2mm (592.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Kapaau

Kapaau average daily sunshine chart
Average daily sunshine Kapaau
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.6 6.8 6.7 6.5 7.2 8 7.7 7.7 7.5 6.5 5.7 5.9

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Kapaau average minimum / maximum temperatures (Celsius) Kapaau average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Kapaau (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 16.7 16.6 17 17.6 18.2 18.9 19.6 19.8 19.5 19.3 18.5 17.4
Max °C 25.7 25.7 25.7 25.9 26.9 27.7 28 28.4 28.5 28.1 27 26.1
Min °F 62.1 61.8 62.5 63.6 64.7 66 67.3 67.6 67.1 66.7 65.2 63.2
Max °F 70.2 70 70.3 71.1 72.5 73.9 74.8 75.4 75.2 74.7 72.9 71.1

Sea temperature

The graph below shows the average sea temperature.

Kapaau average sea temperature chart (Celsius) Kapaau average sea temperature chart (Fahrenheit)
Average sea temperature around Kapaau in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 24.5 24.2 24.2 24.3 24.8 25.4 25.8 26.3 26.6 26.5 25.9 25.1
°F 76.1 75.6 75.5 75.8 76.7 77.7 78.5 79.3 79.9 79.8 78.7 77.1

Wind speed

The graph below shows the average wind speed.

Kapaau average winspeed by month (km/h) Kapaau average winspeed by month (mph)
Average wind speed in Kapaau (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 16 16 17 17 17 18 19 18 16 16 16 16
mph 10 10 11 11 11 11 12 11 10 10 10 10

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Kapaau relative humidity averages
Average relative humidity in Kapaau
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
77% 75% 76% 76% 75% 74% 76% 75% 75% 77% 77% 78%