Grand Canyon National Park in September

Grand Canyon National Park · crowd + weather almanac

September crowd level busy

about 469,000 visits in a typical September

The 5th-busiest month of the year · median of 2016–2025 official NPS counts

September is the 5th-busiest month of the year at Grand Canyon National Park: about 469,000 recreation visits in a typical September (10% of the year's traffic, and 84% of what the peak month, July, sees). This is a busy month, though short of the summer-peak crush. Weather-wise, September days at the Grand Canyon Np 2, AZ station typically top out around 76°F with nights near 44°F, and about 1.5 inches of precipitation falls over the month.

Typical September: 469,445 recreation visits (median 2016–2025); the range across those years ran 249,010 (2020) to 615,783 (2018).
Busier than 7 of the other 11 months.
1991–2020 September normals at Grand Canyon Np 2, AZ: high 76°F, low 44°F, 1.50 in precipitation, 0.0 in snow.

Typical (median) monthly recreation visits at Grand Canyon National Park, 2016–2025. September highlighted. Source: NPS Visitor Use Statistics.

September weather (1991–2020 normals)

Typical daytime high	76°F
Typical overnight low	44°F
Precipitation (monthly normal)	1.50 in
Snowfall (monthly normal)	0.0 in
Measured at	Grand Canyon Np 2, AZ (USC00023596), 0.6 mi from the park reference point, elev. 6,785 ft

Every month at Grand Canyon

Month	Typical visits	Crowds	High / Low	Precip
January	190,482	quiet	44°F / 19°F	1.8 in
February	209,992	moderate	46°F / 21°F	1.2 in
March	397,146	busy	54°F / 25°F	1.9 in
April	464,113	busy	61°F / 29°F	0.6 in
May	530,106	busiest stretch	70°F / 36°F	0.4 in
June	524,384	busiest stretch	82°F / 43°F	0.2 in
July	557,043	busiest stretch	85°F / 50°F	2.3 in
August	515,351	busiest stretch	82°F / 50°F	2.2 in
September	469,445	busy	76°F / 44°F	1.5 in
October	464,701	busy	65°F / 33°F	1.2 in
November	334,073	busy	53°F / 25°F	0.8 in
December	307,360	moderate	43°F / 18°F	1.2 in

Official NPS page for Grand Canyon →