Honolulu (HI) monthly weather averages

Average daytime temperature

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

Honolulu average temperature chart (Celsius) Honolulu average temperature chart (Fahrenheit)
Average monthly temperatures in Honolulu (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 25.7 25.8 26.2 26.8 27.9 28.9 29.4 30 29.9 29.1 27.6 26.3
°F 78.2 78.4 79.2 80.2 82.2 84 84.9 86.1 85.9 84.4 81.7 79.4

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.

Honolulu monthly rainfall chart (mm) Honolulu monthly rainfall chart (inches)
Average monthly rainfall in Honolulu (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 197 168 210 177 154 107 156 145 111 156 206 199
inches 7.8 6.6 8.3 7 6.1 4.2 6.1 5.7 4.4 6.1 8.1 7.8
Rainy days 11 9 10 11 9 7 9 7 8 10 11 11

Average daily sunshine

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

Honolulu average daily sunshine chart
Average daily sunshine Honolulu
  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.

Honolulu average minimum / maximum temperatures (Celsius) Honolulu average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Honolulu (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 17.8 17.7 18.5 19.3 20.2 21.2 21.9 22.3 22 21.3 20.2 18.6
Max °C 25.9 26 26.4 27 28.1 29.1 29.6 30.2 30.1 29.3 27.8 26.5
Min °F 64 63.9 65.3 66.7 68.4 70.1 71.5 72.1 71.5 70.3 68.4 65.4
Max °F 71.3 71.3 72.4 73.6 75.5 77.2 78.4 79.3 78.9 77.5 75.2 72.5

Sea temperature

The graph below shows the average sea temperature.

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

Honolulu average winspeed by month (km/h) Honolulu average winspeed by month (mph)
Average wind speed in Honolulu (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 10 11 12 13 12 13 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.

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

Other monthly averages

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Honolulu weather stats

Honolulu weather statistics
Hottest month: August 30°C 86°F
Driest month: June 107mm 4.2ins
Sunniest month: September 9.6hrs
Coldest month: January 25.7°C 78.3°F
Wettest month: March 210mm 8.3ins
Warmest sea: September 26.8°C 80.2°F
Map showing location of Honolulu (21.30694, -157.85833)

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