Tucson (AZ)
September
Weather in Tucson, Arizona for September 2025
Your guide to Tucson weather in September - trends and predictions
In general, the average temperature in Tucson at the beginning of September is 36.4 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 38.6 °F by the end of September.
With an average of 4 rainy days, Tucson experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
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26
Dry days
4
Rainy days
0
Snow days
36°/20°
Temperatures
21 km/h
Avg max wind
30 %
Avg humidity
Tucson Weather September
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Temperatures trend during September in Tucson
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September weather in Tucson day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Thundery outbreaks possible | 34° /22° | 0.6 mm | 8 | |
| Sept. 2 |  Patchy rain possible | 35° /21° | 0.8 mm | 8 | |
| Sept. 3 |  Sunny | 36° /22° | 0 mm | 9 | |
| Sept. 4 | Sunny | 37° /22° | 0 mm | 9 | |
| Sept. 5 | Sunny | 38° /21° | 0 mm | 9 | |
| Sept. 6 | Sunny | 38° /22° | 0 mm | 10 | |
| Sept. 7 |  Partly cloudy | 37° /23° | 0 mm | 9 | |
| Sept. 8 | Sunny | 37° /23° | 0 mm | 9 | |
| Sept. 9 | Sunny | 39° /23° | 0 mm | 10 | |
| Sept. 10 | Partly cloudy | 40° /23° | 0 mm | 10 | |
| Sept. 11 |  Cloudy | 38° /24° | 0.2 mm | 9 | |
| Sept. 12 | Thundery outbreaks possible | 35° /23° | 0 mm | 9 | |
| Sept. 13 |  Moderate or heavy rain shower | 35° /22° | 2.3 mm | 8 | |
| Sept. 14 | Sunny | 35° /21° | 1.3 mm | 8 | |
| Sept. 15 | Sunny | 35° /20° | 1.9 mm | 8 | |
| Sept. 16 | Sunny | 35° /19° | 3.9 mm | 8 | |
| Sept. 17 | Partly cloudy | 36° /18° | 0 mm | 8 | |
| Sept. 18 | Sunny | 35° /17° | 0 mm | 9 | |
| Sept. 19 | Sunny | 35° /15° | 0 mm | 9 | |
| Sept. 20 |  Overcast | 34° /15° | 0 mm | 8 | |
| Sept. 21 | Sunny | 33° /14° | 0 mm | 8 | |
| Sept. 22 | Partly cloudy | 34° /13° | 0 mm | 8 | |
| Sept. 23 | Sunny | 36° /15° | 0 mm | 9 | |
| Sept. 24 | Sunny | 36° /16° | 0 mm | 9 | |
| Sept. 25 | Sunny | 39° /18° | 0 mm | 9 | |
| Sept. 26 | Sunny | 40° /19° | 0 mm | 10 | |
| Sept. 27 | Sunny | 40° /18° | 0 mm | 10 | |
| Sept. 28 | Overcast | 38° /19° | 0 mm | 9 | |
| Sept. 29 | Sunny | 39° /18° | 0 mm | 9 | |
| Sept. 30 | Sunny | 38° /16° | 0 mm | 9 | |
| Next | |||||
Important Notice
Our weather forecast for Tucson 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 Tucson forecast closer to your planned date for the most up-to-date weather information.
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Tucson in September - FAQ
What are the expected maximum and minimum temperatures in Tucson during September?
Expect warm days with temperatures around 36°, cooling to mild conditions of 20° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Tucson during September?
Expect minimal rainfall in Tucson during September, with a total of 11.1 mm over approximately 4 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Tucson during September?
The average wind speed in Tucson during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Tucson
Explore the daily rainfall trends and prepare for Tucsons September weather 💧
UV exposure in Tucson during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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