Wailua (HI) monthly weather averages

Average daytime temperature

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

Wailua average temperature chart (Celsius) Wailua average temperature chart (Fahrenheit)
Average monthly temperatures in Wailua (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 24.4 24.2 24.2 24.8 25.7 26.9 27.5 27.9 27.8 27 25.8 24.8
°F 75.9 75.6 75.6 76.6 78.2 80.4 81.4 82.1 82 80.6 78.4 76.7

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.

Wailua monthly rainfall chart (mm) Wailua monthly rainfall chart (inches)
Average monthly rainfall in Wailua (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 349 284 337 327 296 195 291 301 218 293 368 370
inches 13.7 11.2 13.3 12.9 11.7 7.7 11.4 11.9 8.6 11.5 14.5 14.6
Rainy days 15 13 17 18 16 16 19 17 16 18 18 17

Average annual rainfall in Wailua: 3492.266mm (1374.9 inches)

Average daily sunshine

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

Wailua average daily sunshine chart
Average daily sunshine Wailua
  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.

Wailua average minimum / maximum temperatures (Celsius) Wailua average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Wailua (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 17.5 17.2 18 18.9 19.8 21 21.8 22 21.7 20.9 19.9 18.4
Max °C 24.6 24.4 24.4 25 25.8 27.1 27.6 28 28 27.2 25.9 25
Min °F 63.4 63 64.4 65.9 67.6 69.7 71.2 71.6 71 69.5 67.8 65.1
Max °F 69.8 69.4 70.2 71.4 73 75.2 76.5 77 76.6 75.2 73.2 71.1

Sea temperature

The graph below shows the average sea temperature.

Wailua average sea temperature chart (Celsius) Wailua average sea temperature chart (Fahrenheit)
Average sea temperature around Wailua in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 24.1 23.7 23.8 24.1 24.8 25.6 26.1 26.5 26.9 26.7 25.9 24.9
°F 75.4 74.7 74.8 75.4 76.6 78.1 78.9 79.7 80.3 80 78.6 76.7

Wind speed

The graph below shows the average wind speed.

Wailua average winspeed by month (km/h) Wailua average winspeed by month (mph)
Average wind speed in Wailua (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 19 22 23 21 22 23 22 20 19 21 19
mph 12 12 14 14 13 14 15 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.

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