Grand Canyon National Park (AZ)
September
Weather in Grand Canyon National Park, Arizona for September 2026
Your guide to Grand Canyon National Park weather in September - trends and predictions
In general, the average temperature in Grand Canyon National Park at the beginning of September is 25.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.3 °F by the end of September.
With an average of 5 rainy days, Grand Canyon National Park experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
25
Dry days
5
Rainy days
0
Snow days
24°/14°
Temperatures
24 km/h
Avg max wind
48 %
Avg humidity
Grand Canyon National Park Weather September
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Temperatures trend during September in Grand Canyon National Park
See the weather trend as well as the moving average line
September weather in Grand Canyon National Park day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 29° /19° | 0 mm | 12 | |
| Sept. 2 |  Thundery outbreaks possible | 28° /18° | 0 mm | 8 | |
| Sept. 3 | Thundery outbreaks possible | 28° /18° | 3.2 mm | 9 | |
| Sept. 4 | Thundery outbreaks possible | 26° /16° | 0 mm | 11 | |
| Sept. 5 |  Partly cloudy | 22° /14° | 20.9 mm | 10 | |
| Sept. 6 | Thundery outbreaks possible | 23° /14° | 0 mm | 9 | |
| Sept. 7 | Partly cloudy | 25° /15° | 0 mm | 11 | |
| Sept. 8 |  Sunny | 26° /15° | 0 mm | 10 | |
| Sept. 9 | Partly cloudy | 24° /14° | 0 mm | 10 | |
| Sept. 10 | Sunny | 25° /14° | 0 mm | 10 | |
| Sept. 11 | Sunny | 23° /14° | 0 mm | 10 | |
| Sept. 12 | Sunny | 23° /12° | 0 mm | 10 | |
| Sept. 13 | Sunny | 22° /11° | 0 mm | 10 | |
| Sept. 14 | Sunny | 25° /12° | 0 mm | 9 | |
| Sept. 15 | Sunny | 24° /13° | 0 mm | 9 | |
| Sept. 16 | Sunny | 25° /14° | 0 mm | 9 | |
| Sept. 17 | Sunny | 26° /15° | 0 mm | 9 | |
| Sept. 18 |  Cloudy | 25° /15° | 0 mm | 8 | |
| Sept. 19 | Thundery outbreaks possible | 24° /14° | 0 mm | 9 | |
| Sept. 20 | Cloudy | 23° /15° | 0 mm | 9 | |
| Sept. 21 | Cloudy | 23° /13° | 3.3 mm | 9 | |
| Sept. 22 |  Moderate or heavy rain shower | 21° /11° | 16.1 mm | 6 | |
| Sept. 23 | Sunny | 25° /13° | 0 mm | 8 | |
| Sept. 24 | Sunny | 25° /8° | 0 mm | 8 | |
| Sept. 25 | Thundery outbreaks possible | 26° /15° | 0 mm | 8 | |
| Sept. 26 | Thundery outbreaks possible | 22° /10° | 0 mm | 8 | |
| Sept. 27 | Moderate or heavy rain shower | 17° /11° | 13.8 mm | 4 | |
| Sept. 28 | Thundery outbreaks possible | 17° /10° | 0 mm | 6 | |
| Sept. 29 | Sunny | 21° /10° | 0 mm | 7 | |
| Sept. 30 | Cloudy | 21° /12° | 0 mm | 7 | |
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Important Notice
Our weather forecast for Grand Canyon National Park in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grand Canyon National Park forecast closer to your planned date for the most up-to-date weather information.
Change Month
Grand Canyon National Park in September - FAQ
What are the expected maximum and minimum temperatures in Grand Canyon National Park during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Grand Canyon National Park during September?
Moderate rainfall is anticipated in Grand Canyon National Park during September, with a total of 57.3 mm spread over approximately 5 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Grand Canyon National Park during September?
The average wind speed in Grand Canyon National Park during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Grand Canyon National Park
Explore the daily rainfall trends and prepare for Grand Canyon National Parks September weather 💧
Typically, Grand Canyon National Park has 5 rainy days in September with a total of 57.3 mm of rainfall.
UV exposure in Grand Canyon National Park during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Grand Canyon National Park?Get accurate weather forecasts for Grand Canyon National Park, located at latitude 36.107 and longitude -112.113. Stay updated with localized weather information tailored for Grand Canyon National Park.
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