Grand Canyon Weather in October

What's the weather like in Grand Canyon (Arizona) in October 2025?

The climate in Grand Canyon during October can be summarized as mild and dry.

October is in the fall / autumn in Grand Canyon and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 22°C (71°F), whilst at night 4°C (40°F) is normal.

Grand Canyon weather averages (imperial / metric)
Daytime temperature	21.7°C 71°F
Nightly temperature	4.2°C 39.5°F
Average temperature	12.9°C 55.2°F
Daily sunshine	9.9 hrs
Avg rainfall	24 mm 0.9 ins
Rainy days	4 days
Sea temperature	16.9°C 62.5°F
Humidity	46%
Windspeed	13.7kph 9 mph

On average October is the 5th driest month of the year in Grand Canyon with around 24mm 0.9 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.9 hours of sunshine per day.

October temperatures in Grand Canyon

Grand Canyon average temperature in October

October rainfall

October 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 October 2025.