Weather in Tucson, Arizona for September 2025
Until now, September 2025 in Tucson is cooler than usual, with temperatures averaging 33.9 °F, this is -2.1 °F below the typical seasonal average.
Expect cooler weather in the next days in Tucson with the forecast suggesting a temperature of 34.6 °F, lower than the historical average.
In general, the average temperature in Tucson at the beginning of September is 35.3 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 34.3 °F by the end of September.
With an average of 4 rainy days, Tucson experiences minimal rainfall in September.
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Tucson Weather September
Temperatures trend during September in Tucson
September weather in Tucson day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Thundery outbreaks possible | 35° /22° | 0.4 mm | 8 | |
| Sept. 2 |  Patchy rain possible | 35° /22° | 0.5 mm | 8 | |
| Sept. 3 |  Sunny | 36° /21° | 0 mm | 9 | |
| Sept. 4 | Sunny | 35° /22° | 2.2 mm | 8 | |
| Sept. 5 | Sunny | 33° /20° | 23.2 mm | 8 | |
| Sept. 6 | Sunny | 36° /21° | 2.1 mm | 9 | |
| Sept. 7 | Sunny | 37° /22° | 0 mm | 9 | |
| Sept. 8 | Sunny | 37° /22° | 0 mm | 9 | |
| Sept. 9 | Sunny | 39° /22° | 0 mm | 9 | |
| Sept. 10 | Sunny | 39° /22° | 0 mm | 9 | |
| Sept. 11 |  Cloudy | 37° /23° | 0.2 mm | 8 | |
| Sept. 12 | Thundery outbreaks possible | 35° /23° | 2.2 mm | 8 | |
| Sept. 13 |  Moderate or heavy rain shower | 34° /22° | 1.5 mm | 8 | |
| Sept. 14 | Sunny | 35° /20° | 0.9 mm | 8 | |
| Sept. 15 | Sunny | 36° /20° | 1.3 mm | 8 | |
| Sept. 16 | Sunny | 35° /20° | 2.6 mm | 8 | |
| Sept. 17 | Patchy rain possible | 33° /23° | 3 mm | 1.3 | |
| Sept. 18 |  Partly cloudy | 34° /23° | 0 mm | 1.8 | |
| Sept. 19 | Partly cloudy | 37° /25° | 0 mm | 2.2 | |
| Sept. 20 | Sunny | 35° /22° | 0.1 mm | 2.2 | |
| Sept. 21 | Sunny | 35° /27° | 0 mm | 0 | |
| Sept. 22 | Sunny | 35° /27° | 0 mm | 8 | |
| Sept. 23 | Sunny | 36° /26° | 0 mm | 8 | |
| Sept. 24 | Sunny | 37° /27° | 0 mm | 8 | |
| Sept. 25 | Sunny | 36° /28° | 0 mm | 8 | |
| Sept. 26 | Sunny | 37° /26° | 0 mm | 8 | |
| Sept. 27 | Sunny | 36° /27° | 0 mm | 8 | |
| Sept. 28 | Patchy rain possible | 33° /25° | 1.8 mm | 6 | |
| Sept. 29 | Sunny | 29° /20° | 0 mm | 6 | |
| Sept. 30 | Sunny | 32° /21° | 0 mm | 7 | |
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Tucson in September - FAQ
September rainfall patterns in Tucson
UV exposure in Tucson during September
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Where is Tucson?Get accurate weather forecasts for Tucson, located at latitude 32.222 and longitude -110.926. Stay updated with localized weather information tailored for Tucson.