Gilbert (AZ)
September
Weather in Gilbert, Arizona for September 2025
Your guide to Gilbert weather in September - trends and predictions
Until now, September 2025 in Gilbert is slightly cooler than the historical average by -1.3 °F.
Expect cooler weather in the next days in Gilbert with the forecast suggesting a temperature of 36 °F, lower than the historical average.
In general, the average temperature in Gilbert at the beginning of September is 38.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 35.3 °F by the end of September.
With an average of 3 rainy days, Gilbert experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
27
Dry days
3
Rainy days
0
Snow days
39°/25°
Temperatures
17 km/h
Avg max wind
24 %
Avg humidity
Gilbert Weather September
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Temperatures trend during September in Gilbert
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September weather in Gilbert day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Thundery outbreaks possible | 38° /27° | 4.2 mm | 8 | |
| Sept. 2 |  Patchy rain possible | 39° /27° | 2.5 mm | 9 | |
| Sept. 3 |  Sunny | 39° /27° | 0 mm | 9 | |
| Sept. 4 | Sunny | 40° /29° | 0.8 mm | 9 | |
| Sept. 5 | Sunny | 37° /26° | 0 mm | 9 | |
| Sept. 6 | Sunny | 39° /27° | 0 mm | 9 | |
| Sept. 7 | Sunny | 40° /27° | 0 mm | 9 | |
| Sept. 8 | Sunny | 40° /27° | 0 mm | 9 | |
| Sept. 9 | Sunny | 42° /28° | 0 mm | 10 | |
| Sept. 10 | Sunny | 42° /28° | 0 mm | 10 | |
| Sept. 11 | Sunny | 40° /28° | 0 mm | 9 | |
| Sept. 12 | Thundery outbreaks possible | 37° /28° | 0 mm | 8 | |
| Sept. 13 | Sunny | 37° /25° | 0.8 mm | 9 | |
| Sept. 14 | Sunny | 38° /24° | 0.1 mm | 9 | |
| Sept. 15 | Sunny | 38° /24° | 1.8 mm | 9 | |
| Sept. 16 | Sunny | 39° /23° | 0.4 mm | 9 | |
| Sept. 17 | Thundery outbreaks possible | 36° /27° | 0 mm | 1.6 | |
| Sept. 18 | Sunny | 37° /27° | 0 mm | 2 | |
| Sept. 19 | Sunny | 36° /25° | 0 mm | 2 | |
| Sept. 20 | Patchy rain possible | 36° /27° | 0.7 mm | 2 | |
| Sept. 21 | Sunny | 37° /29° | 0 mm | 0 | |
| Sept. 22 | Sunny | 38° /29° | 0 mm | 8 | |
| Sept. 23 | Sunny | 40° /29° | 0 mm | 8 | |
| Sept. 24 | Sunny | 39° /29° | 0 mm | 8 | |
| Sept. 25 | Sunny | 39° /29° | 0 mm | 8 | |
| Sept. 26 | Sunny | 40° /30° | 0 mm | 8 | |
| Sept. 27 | Sunny | 36° /28° | 0 mm | 8 | |
| Sept. 28 | Sunny | 27° /22° | 0 mm | 6 | |
| Sept. 29 | Sunny | 27° /21° | 0 mm | 6 | |
| Sept. 30 | Sunny | 39° /23° | 0 mm | 10 | |
| Next | |||||
Important Notice
Our weather forecast for Gilbert 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 Gilbert forecast closer to your planned date for the most up-to-date weather information.
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Gilbert in September - FAQ
What are the expected maximum and minimum temperatures in Gilbert during September?
With daytime temperatures soaring above 39° and not dropping much below 25° at night, September in Gilbert is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Gilbert during September?
Expect minimal rainfall in Gilbert during September, with a total of 12 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Gilbert during September?
The average wind speed in Gilbert during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Gilbert
Explore the daily rainfall trends and prepare for Gilberts September weather 💧
UV exposure in Gilbert during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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