Grand County (Moab)
September
Weather in Grand County, Utah for September 2027
Your guide to Grand County weather in September - trends and predictions
In general, the average temperature in Grand County at the beginning of September is 30.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.6 °C by the end of September.
With an average of 3 rainy days, Grand County experiences minimal rainfall in September.
Is September a good time to visit Grand County? check out the best time to travel to Grand County page.
✨ Is September a good time to visit Grand County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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27
Dry days
3
Rainy days
0
Snow days
28°/15°
Temperatures
22 km/h
Avg max wind
34 %
Avg humidity
Grand County Weather September
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Temperatures trend during September in Grand County
See the weather trend as well as the moving average line
September weather in Grand County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 31° /15° | 0 mm | 8.6 | |
| Sept. 2 |  Cloudy | 31° /17° | 0 mm | 8 | |
| Sept. 3 | Sunny | 32° /17° | 0 mm | 8 | |
| Sept. 4 | Sunny | 32° /18° | 0 mm | 8.4 | |
| Sept. 5 | Sunny | 30° /18° | 0 mm | 8 | |
| Sept. 6 | Sunny | 29° /17° | 0.1 mm | 6 | |
| Sept. 7 | Sunny | 30° /16° | 0 mm | 7 | |
| Sept. 8 | Sunny | 30° /16° | 0 mm | 8 | |
| Sept. 9 |  Partly cloudy | 31° /16° | 0 mm | 7.9 | |
| Sept. 10 | Sunny | 30° /16° | 0 mm | 7.9 | |
| Sept. 11 | Sunny | 30° /16° | 0 mm | 7.8 | |
| Sept. 12 |  Patchy rain possible | 29° /17° | 1.1 mm | 5 | |
| Sept. 13 | Sunny | 27° /16° | 0 mm | 7 | |
| Sept. 14 | Sunny | 28° /14° | 0 mm | 7 | |
| Sept. 15 | Cloudy | 30° /16° | 0 mm | 7 | |
| Sept. 16 | Patchy rain possible | 28° /16° | 1.7 mm | 5 | |
| Sept. 17 | Patchy rain possible | 24° /15° | 2.4 mm | 5 | |
| Sept. 18 | Cloudy | 25° /12° | 0.7 mm | 5 | |
| Sept. 19 |  Overcast | 27° /13° | 0 mm | 7 | |
| Sept. 20 | Sunny | 26° /13° | 0 mm | 6.9 | |
| Sept. 21 | Cloudy | 25° /13° | 0.1 mm | 5 | |
| Sept. 22 | Sunny | 25° /14° | 0.3 mm | 6 | |
| Sept. 23 | Partly cloudy | 24° /12° | 0 mm | 5 | |
| Sept. 24 | Partly cloudy | 25° /12° | 0 mm | 5 | |
| Sept. 25 | Sunny | 28° /13° | 0 mm | 6 | |
| Sept. 26 | Sunny | 28° /14° | 0 mm | 6 | |
| Sept. 27 | Sunny | 27° /15° | 0 mm | 5 | |
| Sept. 28 |  Light rain | 25° /14° | 5.9 mm | 5 | |
| Sept. 29 | Patchy rain possible | 25° /14° | 2 mm | 5 | |
| Sept. 30 | Sunny | 27° /14° | 0 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Grand County 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 County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Grand County in September - FAQ
What are the expected maximum and minimum temperatures in Grand County during September?
During September, expect a variety of temperatures with highs around 28° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Grand County during September?
Expect minimal rainfall in Grand County during September, with a total of 14.3 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Grand County during September?
The average wind speed in Grand County during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Grand County
Explore the daily rainfall trends and prepare for Grand Countys September weather 💧
Typically, Grand County has 3 rainy days in September with a total of 14.3 mm of rainfall.
UV exposure in Grand County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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