Kahuku (HI) monthly weather averages

Average daytime temperature

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

Kahuku average temperature chart (Celsius) Kahuku average temperature chart (Fahrenheit)
Average monthly temperatures in Kahuku (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 25.3 25.3 25.6 26.2 27.3 28.3 28.9 29.5 29.4 28.6 27.2 26
°F 77.6 77.6 78.2 79.2 81.2 83 84 85.1 85 83.5 80.9 78.7

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.

Kahuku monthly rainfall chart (mm) Kahuku monthly rainfall chart (inches)
Average monthly rainfall in Kahuku (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 214 191 226 198 155 110 160 146 111 170 215 204
inches 8.4 7.5 8.9 7.8 6.1 4.3 6.3 5.8 4.4 6.7 8.5 8
Rainy days 11 10 11 12 10 8 10 9 9 11 12 12

Average annual rainfall in Kahuku: 1964.383mm (773.4 inches)

Average daily sunshine

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

Kahuku average daily sunshine chart
Average daily sunshine Kahuku
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.2 7.8 8.4 8.4 9.2 9.7 10 9.9 9.5 8.1 6.9 6.7

Day / night temperatures

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

Kahuku average minimum / maximum temperatures (Celsius) Kahuku average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Kahuku (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 17.6 17.4 18.2 19 19.9 20.9 21.7 22 21.7 21 20 18.4
Max °C 25.5 25.5 25.8 26.4 27.5 28.5 29.1 29.7 29.6 28.8 27.4 26.2
Min °F 63.6 63.3 64.7 66.2 67.8 69.6 71.1 71.6 71 69.8 67.9 65
Max °F 70.8 70.6 71.6 72.9 74.7 76.5 77.7 78.5 78.2 76.8 74.6 72.1

Sea temperature

The graph below shows the average sea temperature.

Kahuku average sea temperature chart (Celsius) Kahuku average sea temperature chart (Fahrenheit)
Average sea temperature around Kahuku in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 24.4 24.1 24.1 24.3 24.9 25.6 26 26.5 26.8 26.7 26 25
°F 75.9 75.3 75.4 75.8 76.8 78.1 78.8 79.6 80.3 80 78.8 77

Wind speed

The graph below shows the average wind speed.

Kahuku average winspeed by month (km/h) Kahuku average winspeed by month (mph)
Average wind speed in Kahuku (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 18 20 21 20 22 23 21 19 18 19 18
mph 11 11 12 13 12 14 14 13 12 11 12 11

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.

Kahuku relative humidity averages
Average relative humidity in Kahuku
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 72% 70% 69% 68% 67% 68% 67% 69% 70% 72% 74%