Grand Canyon Weather in August

What's the weather like in Grand Canyon (Arizona) in August 2024?

The climate in Grand Canyon during August can be summarized as warm and reasonably dry.

August is in the summer in Grand Canyon and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a comfortable 32°C (89°F), whilst at night 14°C (57°F) is normal.

Grand Canyon weather averages (imperial / metric)
Daytime temperature	31.6°C 88.8°F
Nightly temperature	14.1°C 57.3°F
Average temperature	22.8°C 73°F
Daily sunshine	11.3 hrs
Avg rainfall	39 mm 1.5 ins
Rainy days	7 days
Sea temperature	18.6°C 65.6°F
Humidity	45%
Windspeed	15.5kph 10 mph

On average August is the wettest month of the year in Grand Canyon with around 39mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 11.3 hours of sunshine per day.

August temperatures in Grand Canyon

Grand Canyon average temperature in August

August rainfall

August hourly sunshine

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Grand Canyon in August 2024.