Waimalu (HI) monthly weather averages

Average daytime temperature

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

Waimalu average temperature chart (Celsius) Waimalu average temperature chart (Fahrenheit)
Average monthly temperatures in Waimalu (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 25.5 25.6 26 26.6 27.7 28.8 29.2 29.9 29.8 29 27.5 26.2
°F 77.9 78.1 78.8 79.9 81.9 83.8 84.6 85.8 85.6 84.2 81.4 79.1

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.

Waimalu monthly rainfall chart (mm) Waimalu monthly rainfall chart (inches)
Average monthly rainfall in Waimalu (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 239 223 291 251 228 158 239 225 166 218 279 260
inches 9.4 8.8 11.5 9.9 9 6.2 9.4 8.9 6.5 8.6 11 10.2
Rainy days 11 10 11 11 9 7 9 8 9 10 11 12

Average annual rainfall in Waimalu: 2639.4mm (1039.1 inches)

Average daily sunshine

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

Waimalu average daily sunshine chart
Average daily sunshine Waimalu
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.3 7.9 8.5 8.5 9.3 9.8 10.1 10 9.5 8.2 7 6.8

Day / night temperatures

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

Waimalu average minimum / maximum temperatures (Celsius) Waimalu average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Waimalu (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 17.7 17.6 18.4 19.2 20.1 21.1 21.8 22.2 21.9 21.2 20.2 18.5
Max °C 25.7 25.8 26.2 26.8 27.9 29 29.4 30.1 30 29.2 27.7 26.4
Min °F 63.9 63.7 65.1 66.6 68.2 69.9 71.2 71.9 71.3 70.2 68.3 65.2
Max °F 71.1 71.1 72.1 73.4 75.2 77 78.1 79 78.6 77.4 75 72.3

Sea temperature

The graph below shows the average sea temperature.

Waimalu average sea temperature chart (Celsius) Waimalu average sea temperature chart (Fahrenheit)
Average sea temperature around Waimalu 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.

Waimalu average winspeed by month (km/h) Waimalu average winspeed by month (mph)
Average wind speed in Waimalu (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 18 18
mph 11 11 12 13 12 14 14 13 12 11 11 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.

Waimalu relative humidity averages
Average relative humidity in Waimalu
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 72% 70% 68% 68% 66% 67% 66% 68% 70% 72% 73%