Tempe
September
Weather in Tempe for September 2025
Your guide to Tempe weather in September - trends and predictions
In general, the average temperature in Tempe at the beginning of September is 40 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 40.7 °F by the end of September.
With an average of 3 rainy days, Tempe experiences minimal rainfall in September.
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27
Dry days
3
Rainy days
0
Snow days
39°/25°
Temperatures
16 km/h
Avg max wind
23 %
Avg humidity
Tempe in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  38° | 2  39° | 3  40° | 4 40° | 5  40° | 6 41° | 7 42° |
| 8 40° | 9 43° | 10  42° | 11 40° | 12  37° | 13 37° | 14 38° |
| 15 37° | 16 39° | 17 36° | 18 37° | 19 37° | 20 35° | 21 34° |
| 22 36° | 23 38° | 24 39° | 25 41° | 26 42° | 27 42° | 28 42° |
| 29 40° | 30 39° |
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Temperatures trend during September in Tempe
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Patchy light rain with thunder | 38° /26° | 9.9 mm | 8 | |
| Sept. 2 | Patchy rain possible | 39° /27° | 0.6 mm | 9 | |
| Sept. 3 | Partly cloudy | 40° /28° | 0 mm | 10 | |
| Sept. 4 | Partly cloudy | 40° /29° | 0 mm | 10 | |
| Sept. 5 | Sunny | 40° /28° | 0 mm | 10 | |
| Sept. 6 | Sunny | 41° /28° | 0 mm | 10 | |
| Sept. 7 | Sunny | 42° /29° | 0 mm | 10 | |
| Sept. 8 | Sunny | 40° /29° | 0 mm | 10 | |
| Sept. 9 | Sunny | 43° /28° | 0 mm | 11 | |
| Sept. 10 | Overcast | 42° /29° | 0 mm | 10 | |
| Sept. 11 | Overcast | 40° /30° | 0 mm | 10 | |
| Sept. 12 | Thundery outbreaks possible | 37° /29° | 0 mm | 8 | |
| Sept. 13 | Patchy light rain with thunder | 37° /26° | 1.3 mm | 9 | |
| Sept. 14 | Sunny | 38° /26° | 0 mm | 9 | |
| Sept. 15 | Sunny | 37° /26° | 2.9 mm | 9 | |
| Sept. 16 | Sunny | 39° /25° | 0.2 mm | 9 | |
| Sept. 17 | Partly cloudy | 36° /24° | 0 mm | 9 | |
| Sept. 18 | Sunny | 37° /22° | 0 mm | 9 | |
| Sept. 19 | Sunny | 37° /22° | 0 mm | 9 | |
| Sept. 20 | Overcast | 35° /22° | 0 mm | 8 | |
| Sept. 21 | Sunny | 34° /20° | 0 mm | 8 | |
| Sept. 22 | Partly cloudy | 36° /21° | 0 mm | 9 | |
| Sept. 23 | Partly cloudy | 38° /22° | 0 mm | 9 | |
| Sept. 24 | Sunny | 39° /23° | 0 mm | 9 | |
| Sept. 25 | Sunny | 41° /23° | 0 mm | 10 | |
| Sept. 26 | Sunny | 42° /24° | 0 mm | 10 | |
| Sept. 27 | Overcast | 42° /25° | 0 mm | 10 | |
| Sept. 28 | Overcast | 42° /25° | 0 mm | 9 | |
| Sept. 29 | Sunny | 40° /26° | 0 mm | 10 | |
| Sept. 30 | Sunny | 39° /24° | 0 mm | 10 | |
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Important Notice
Our weather forecast for Tempe 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 Tempe forecast closer to your planned date for the most up-to-date weather information.
Tempe in September - FAQ
What are the expected maximum and minimum temperatures in Tempe during September?
With daytime temperatures soaring above 39° and not dropping much below 25° at night, September in Tempe is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Tempe during September?
In September, Tempe can expect light to moderate rainfall, totaling 22.6 mm across approximately 3 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Tempe during September?
The average wind speed in Tempe during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Tempe
Explore the daily rainfall trends and prepare for Tempes September weather 💧
UV exposure in Tempe during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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