Kīlauea (HI) monthly weather averages

Average daytime temperature

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

Kīlauea average temperature chart (Celsius) Kīlauea average temperature chart (Fahrenheit)
Average monthly temperatures in Kīlauea (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 25 25 25.2 25.9 26.8 28 28.5 29 28.9 28 26.7 25.5
°F 77.1 77.1 77.4 78.6 80.2 82.3 83.2 84.1 84 82.4 80.1 77.9

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.

Kīlauea monthly rainfall chart (mm) Kīlauea monthly rainfall chart (inches)
Average monthly rainfall in Kīlauea (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 274 233 274 237 191 113 185 174 122 206 275 283
inches 10.8 9.2 10.8 9.3 7.5 4.5 7.3 6.8 4.8 8.1 10.8 11.2
Rainy days 15 13 16 18 16 16 18 17 15 18 18 16

Average annual rainfall in Kīlauea: 2429.733mm (956.6 inches)

Average daily sunshine

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

Kīlauea average daily sunshine chart
Average daily sunshine Kīlauea
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.3 7 7.2 7.3 8.4 8.9 8.9 9.1 8.7 7.3 5.9 5.7

Day / night temperatures

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

Kīlauea average minimum / maximum temperatures (Celsius) Kīlauea average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Kīlauea (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 18.2 18 19 20 20.9 22.1 22.8 23.1 22.8 21.9 21 19.2
Max °C 25.2 25.2 25.4 26.1 27 28.1 28.6 29.1 29.1 28.2 26.9 25.7
Min °F 64.8 64.4 66.2 67.9 69.5 71.8 73 73.6 73 71.3 69.7 66.5
Max °F 71.1 70.9 72 73.4 75 77.2 78.3 79 78.6 77 75 72.3

Sea temperature

The graph below shows the average sea temperature.

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

Kīlauea average winspeed by month (km/h) Kīlauea average winspeed by month (mph)
Average wind speed in Kīlauea (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 18 19 21 23 21 22 23 22 20 19 21 19
mph 11 12 13 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.

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