Kailua (HI) monthly weather averages

Contents

Average daytime temperature

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

Kailua average temperature chart (Celsius) Kailua average temperature chart (Fahrenheit)
Average monthly temperatures in Kailua (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 25.9 26 26.5 27.1 28.2 29.2 29.7 30.4 30.3 29.4 27.9 26.5
°F 78.5 78.7 79.7 80.8 82.8 84.6 85.4 86.6 86.5 84.8 82.2 79.7

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.

Kailua monthly rainfall chart (mm) Kailua monthly rainfall chart (inches)
Average monthly rainfall in Kailua (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 203 183 234 205 178 120 182 169 128 171 229 221
inches 8 7.2 9.2 8.1 7 4.7 7.2 6.6 5 6.7 9 8.7
Rainy days 10 9 10 10 8 6 8 7 8 9 10 11

Average annual rainfall in Kailua: 2083.767mm (820.4 inches)

Average daily sunshine

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

Kailua average daily sunshine chart
Average daily sunshine Kailua
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.3 7.9 8.6 8.6 9.3 9.9 10.1 10 9.6 8.2 7 6.8

Day / night temperatures

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

Kailua average minimum / maximum temperatures (Celsius) Kailua average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Kailua (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 18 17.9 18.7 19.5 20.4 21.4 22.2 22.5 22.2 21.5 20.4 18.7
Max °C 26.1 26.2 26.7 27.3 28.4 29.4 29.9 30.6 30.5 29.6 28.1 26.7
Min °F 64.3 64.1 65.7 67.1 68.7 70.5 71.9 72.4 71.9 70.6 68.6 65.7
Max °F 71.6 71.6 72.9 74.1 75.9 77.7 78.8 79.7 79.3 77.9 75.6 72.9

Sea temperature

The graph below shows the average sea temperature.

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

Kailua average winspeed by month (km/h) Kailua average winspeed by month (mph)
Average wind speed in Kailua (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 17 19 21 20 22 23 21 19 18 18 18
mph 10 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.

Kailua relative humidity averages
Average relative humidity in Kailua
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 72% 70% 68% 68% 66% 67% 66% 68% 70% 71% 73%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Kailua weather stats

Kailua weather statistics
Hottest month: August 30.4°C 86.7°F
Driest month: June 120mm 4.7ins
Sunniest month: September 9.6hrs
Coldest month: January 25.9°C 78.6°F
Wettest month: March 234mm 9.2ins
Warmest sea: September 26.8°C 80.2°F
Map showing location of Kailua (21.40222, -157.73944) Kailua map pin © Google

Locations nearby

Top United States locations