Yuma County (Yuma)
September
Weather in Yuma County, Arizona for September 2026
Your guide to Yuma County weather in September - trends and predictions
So far, September 2026 in Yuma County is slightly warmer than the historical average by 1 °F.
The forecast for the next days in Yuma County predicts temperatures to be around 37 °F, close to the historical average.
In general, the average temperature in Yuma County at the beginning of September is 40.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 37.1 °F by the end of September.
With an average of 3 rainy days, Yuma County experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
27
Dry days
3
Rainy days
0
Snow days
37°/24°
Temperatures
19 km/h
Avg max wind
45 %
Avg humidity
Yuma County Weather September
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Temperatures trend during September in Yuma County
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September weather in Yuma County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 43° /27° | 0 mm | 10 | |
| Sept. 2 |  Light rain shower | 42° /27° | 2.1 mm | 10 | |
| Sept. 3 | Sunny | 40° /23° | 0 mm | 10 | |
| Sept. 4 |  Fog | 41° /26° | 0 mm | 9 | |
| Sept. 5 | Sunny | 38° /25° | 0 mm | 9 | |
| Sept. 6 |  Patchy light rain with thunder | 39° /26° | 2 mm | 8 | |
| Sept. 7 | Sunny | 40° /25° | 0 mm | 10 | |
| Sept. 8 | Sunny | 43° /28° | 0 mm | 10 | |
| Sept. 9 | Sunny | 40° /27° | 0 mm | 10 | |
| Sept. 10 | Sunny | 40° /25° | 0.1 mm | 10 | |
| Sept. 11 | Sunny | 38° /24° | 0 mm | 9 | |
| Sept. 12 | Sunny | 38° /24° | 0.2 mm | 9 | |
| Sept. 13 | Sunny | 38° /23° | 0 mm | 9 | |
| Sept. 14 | Mist | 38° /24° | 0 mm | 9 | |
| Sept. 15 | Sunny | 38° /24° | 0 mm | 9 | |
| Sept. 16 | Sunny | 39° /25° | 0 mm | 10 | |
| Sept. 17 | Mist | 36° /25° | 0 mm | 8 | |
| Sept. 18 |  Thundery outbreaks possible | 38° /24° | 0 mm | 8 | |
| Sept. 19 | Thundery outbreaks possible | 38° /24° | 0 mm | 8 | |
| Sept. 20 |  Partly cloudy | 38° /24° | 0 mm | 5 | |
| Sept. 21 |  Cloudy | 36° /25° | 0 mm | 8 | |
| Sept. 22 |  Overcast | 34° /22° | 0 mm | 8 | |
| Sept. 23 | Sunny | 39° /23° | 0 mm | 9 | |
| Sept. 24 | Sunny | 38° /26° | 0.1 mm | 7 | |
| Sept. 25 | Sunny | 38° /24° | 0 mm | 8 | |
| Sept. 26 | Sunny | 39° /26° | 0 mm | 8.2 | |
| Sept. 27 | Overcast | 37° /28° | 0 mm | 5.6 | |
| Sept. 28 | Sunny | 35° /24° | 0 mm | 8 | |
| Sept. 29 | Sunny | 35° /21° | 0 mm | 9 | |
| Sept. 30 | Sunny | 38° /23° | 0 mm | 9 | |
| Next | |||||
Important Notice
Our weather forecast for Yuma 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 Yuma County forecast closer to your planned date for the most up-to-date weather information.
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Yuma County in September - FAQ
What are the expected maximum and minimum temperatures in Yuma County during September?
With daytime temperatures soaring above 37° and not dropping much below 24° at night, September in Yuma County is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Yuma County during September?
Expect minimal rainfall in Yuma County during September, with a total of 17.5 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Yuma County during September?
The average wind speed in Yuma County during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Yuma County
Explore the daily rainfall trends and prepare for Yuma Countys September weather 💧
Typically, Yuma County has 3 rainy days in September with a total of 17.5 mm of rainfall.
UV exposure in Yuma County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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