Grand Canyon (AZ) monthly weather averages

Average daytime temperature

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

Grand Canyon average temperature chart (Celsius) Grand Canyon average temperature chart (Fahrenheit)
Average monthly temperatures in Grand Canyon (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8 11 13.7 18.6 24.4 30.5 33 31.1 27.5 21.2 13.8 8.4
°F 46.4 51.9 56.7 65.5 75.8 86.8 91.3 88 81.5 70.2 56.9 47.1

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.

Grand Canyon monthly rainfall chart (mm) Grand Canyon monthly rainfall chart (inches)
Average monthly rainfall in Grand Canyon (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 27 25 32 17 23 10 32 39 24 24 22 26
inches 1.1 1 1.3 0.7 0.9 0.4 1.2 1.5 1 0.9 0.9 1
Rainy days 5 5 6 4 4 3 6 7 5 4 4 5

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Grand Canyon

Grand Canyon average daily sunshine chart
Average daily sunshine Grand Canyon
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.9 8.7 9.6 11.2 12.4 13.4 11.8 11.3 10.9 9.9 8.2 7.6

Day / night temperatures

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

Grand Canyon average minimum / maximum temperatures (Celsius) Grand Canyon average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Grand Canyon (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -5.6 -3.6 -1.5 1.6 6 10.7 15 14.1 10.1 4.2 -1.4 -5.3
Max °C 8.4 11.4 14.1 19 24.8 31 33.4 31.6 27.9 21.7 14.2 8.7
Min °F 22 25.5 29.3 34.9 42.8 51.2 59 57.3 50.2 39.5 29.5 22.5
Max °F 34.5 39 43.3 50.5 59.7 69.4 75.6 73 66.2 55.2 43.5 35.1

Sea temperature

The graph below shows the average sea temperature.

Grand Canyon average sea temperature chart (Celsius) Grand Canyon average sea temperature chart (Fahrenheit)
Average sea temperature around Grand Canyon in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 12.9 12.7 12.8 13.2 14.2 15.7 17.5 18.6 18.3 16.9 15.3 13.7
°F 55.2 54.9 55.1 55.7 57.5 60.2 63.5 65.6 64.9 62.5 59.5 56.7

Wind speed

The graph below shows the average wind speed.

Grand Canyon average winspeed by month (km/h) Grand Canyon average winspeed by month (mph)
Average wind speed in Grand Canyon (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 12 14 17 18 18 17 16 16 15 14 13 12
mph 8 9 11 11 11 11 10 10 9 9 8 8

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.

Grand Canyon relative humidity averages
Average relative humidity in Grand Canyon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
61% 56% 49% 40% 33% 27% 39% 45% 44% 46% 53% 60%
Grand Canyon

Other monthly averages

UV index Best time to go?

Grand Canyon weather stats

Grand Canyon weather statistics
Hottest month: July 33°C 91.4°F
Driest month: June 10mm 0.4ins
Sunniest month: June 13.4hrs
Coldest month: January 8°C 46.4°F
Wettest month: August 39mm 1.5ins
Warmest sea: August 18.6°C 65.5°F
Map showing location of Grand Canyon (36.05443, -112.13934)

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