Nānākuli (HI) monthly weather averages

Average daytime temperature

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

Nānākuli average temperature chart (Celsius) Nānākuli average temperature chart (Fahrenheit)
Average monthly temperatures in Nānākuli (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 25.5 25.6 26 26.5 27.5 28.6 29.1 29.8 29.7 28.8 27.4 26.1
°F 77.8 78 78.7 79.6 81.5 83.4 84.4 85.6 85.4 83.9 81.4 79

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.

Nānākuli monthly rainfall chart (mm) Nānākuli monthly rainfall chart (inches)
Average monthly rainfall in Nānākuli (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 173 130 142 108 84 60 78 75 61 108 141 142
inches 6.8 5.1 5.6 4.3 3.3 2.3 3.1 3 2.4 4.2 5.5 5.6
Rainy days 11 10 11 11 10 8 10 9 9 11 12 12

Average annual rainfall in Nānākuli: 1165.034mm (458.7 inches)

Average daily sunshine

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

Nānākuli average daily sunshine chart
Average daily sunshine Nānākuli
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.2 7.9 8.5 8.5 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.

Nānākuli average minimum / maximum temperatures (Celsius) Nānākuli average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Nānākuli (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 17.8 17.7 18.5 19.2 20.1 21.1 21.9 22.3 22 21.2 20.2 18.5
Max °C 25.7 25.8 26.2 26.7 27.7 28.8 29.3 30 29.9 29 27.6 26.3
Min °F 64 63.8 65.2 66.5 68.2 69.9 71.4 72.1 71.5 70.2 68.4 65.3
Max °F 71.1 71.1 72.1 73.2 75 76.8 78.1 79 78.6 77.2 75 72.3

Sea temperature

The graph below shows the average sea temperature.

Nānākuli average sea temperature chart (Celsius) Nānākuli average sea temperature chart (Fahrenheit)
Average sea temperature around Nānākuli in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 24.5 24.1 24.2 24.4 25 25.8 26.2 26.6 27 26.8 26.1 25.1
°F 76 75.4 75.5 76 77.1 78.4 79.1 79.9 80.5 80.3 79 77.2

Wind speed

The graph below shows the average wind speed.

Nānākuli average winspeed by month (km/h) Nānākuli average winspeed by month (mph)
Average wind speed in Nānākuli (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.

Nānākuli relative humidity averages
Average relative humidity in Nānākuli
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 72% 70% 69% 68% 67% 68% 67% 68% 70% 72% 73%