Kalāheo (HI) monthly weather averages

Average daytime temperature

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

Kalāheo average temperature chart (Celsius) Kalāheo average temperature chart (Fahrenheit)
Average monthly temperatures in Kalāheo (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 24.8 24.7 24.8 25.4 26.3 27.5 28 28.4 28.3 27.5 26.2 25.2
°F 76.6 76.5 76.7 77.7 79.3 81.4 82.3 83 82.9 81.4 79.2 77.4

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.

Kalāheo monthly rainfall chart (mm) Kalāheo monthly rainfall chart (inches)
Average monthly rainfall in Kalāheo (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 273 209 246 241 217 148 216 226 166 218 285 283
inches 10.7 8.2 9.7 9.5 8.5 5.8 8.5 8.9 6.5 8.6 11.2 11.1
Rainy days 15 13 17 18 16 16 19 17 16 18 18 17

Average annual rainfall in Kalāheo: 2587.934mm (1018.9 inches)

Average daily sunshine

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

Kalāheo average daily sunshine chart
Average daily sunshine Kalāheo
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.3 7.1 7.3 7.3 8.3 8.7 8.8 8.9 8.5 7.2 5.9 5.8

Day / night temperatures

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

Kalāheo average minimum / maximum temperatures (Celsius) Kalāheo average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Kalāheo (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 17.9 17.7 18.6 19.5 20.4 21.6 22.3 22.5 22.2 21.4 20.5 18.9
Max °C 25 24.9 25 25.6 26.4 27.6 28.1 28.5 28.4 27.6 26.4 25.4
Min °F 64.1 63.9 65.5 67 68.7 70.9 72.1 72.5 72 70.5 68.8 65.9
Max °F 70.5 70.3 71.2 72.5 74.1 76.3 77.4 77.9 77.5 76.1 74.1 71.8

Sea temperature

The graph below shows the average sea temperature.

Kalāheo average sea temperature chart (Celsius) Kalāheo average sea temperature chart (Fahrenheit)
Average sea temperature around Kalāheo in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 24.5 24.2 24.2 24.5 25.1 25.9 26.3 26.8 27.1 27 26.2 25.2
°F 76.2 75.5 75.6 76.1 77.3 78.7 79.4 80.2 80.8 80.5 79.2 77.4

Wind speed

The graph below shows the average wind speed.

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

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.

Kalāheo relative humidity averages
Average relative humidity in Kalāheo
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
76% 75% 74% 74% 74% 73% 74% 74% 74% 76% 77% 77%