Weather in Syracuse, New York for September 2025
Until now, September 2025 in Syracuse has been nearly identical to the historical average, with a temperature of 21.5 °F (showing only a slight deviation of -0.3 °F).
The forecast for the upcoming days in Syracuse predicts a temperature of 23.5 °F, which is slightly above the historical average.
In general, the average temperature in Syracuse at the beginning of September is 21.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 20.6 °F by the end of September.
Syracuse experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 141.1 mm.
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Syracuse Weather September
Temperatures trend during September in Syracuse
September weather in Syracuse day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain shower | 24° /12° | 1.4 mm | 6 | |
| Sept. 2 | Patchy rain possible | 20° /10° | 0.2 mm | 5 | |
| Sept. 3 |  Partly cloudy | 22° /10° | 0 mm | 6 | |
| Sept. 4 |  Sunny | 23° /12° | 47.3 mm | 6 | |
| Sept. 5 | Sunny | 24° /10° | 0 mm | 6 | |
| Sept. 6 | Partly cloudy | 22° /11° | 12.6 mm | 6 | |
| Sept. 7 | Light rain shower | 18° /9° | 11.1 mm | 4 | |
| Sept. 8 | Patchy rain possible | 17° /7° | 0.1 mm | 4 | |
| Sept. 9 |  Moderate or heavy rain with thunder | 20° /8° | 4.2 mm | 5 | |
| Sept. 10 |  Mist | 20° /10° | 0 mm | 5 | |
| Sept. 11 |  Overcast | 23° /9° | 0 mm | 5 | |
| Sept. 12 | Partly cloudy | 25° /13° | 0 mm | 6 | |
| Sept. 13 | Sunny | 23° /14° | 0 mm | 6 | |
| Sept. 14 | Sunny | 24° /14° | 0 mm | 6 | |
| Sept. 15 |  Moderate rain at times | 26° /15° | 2 mm | 6 | |
| Sept. 16 | Sunny | 24° /12° | 0 mm | 1.4 | |
| Sept. 17 | Partly cloudy | 23° /12° | 0 mm | 1.1 | |
| Sept. 18 | Sunny | 28° /12° | 0 mm | 1.3 | |
| Sept. 19 | Partly cloudy | 22° /10° | 0 mm | 0 | |
| Sept. 20 | Sunny | 23° /6° | 0 mm | 4 | |
| Sept. 21 | Sunny | 26° /13° | 0 mm | 5 | |
| Sept. 22 | Sunny | 26° /14° | 0 mm | 5 | |
| Sept. 23 | Sunny | 28° /15° | 0 mm | 6 | |
| Sept. 24 |  Moderate rain | 26° /15° | 5.5 mm | 4 | |
| Sept. 25 | Moderate rain | 19° /14° | 12.8 mm | 4 | |
| Sept. 26 | Moderate rain | 21° /15° | 6.5 mm | 4 | |
| Sept. 27 | Moderate rain | 18° /13° | 12.4 mm | 4 | |
| Sept. 28 | Sunny | 21° /12° | 0 mm | 5 | |
| Sept. 29 |  Light rain | 18° /16° | 19.7 mm | 4 | |
| Sept. 30 | Mist | 21° /16° | 0 mm | 5 | |
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Syracuse in September - FAQ
September rainfall patterns in Syracuse
UV exposure in Syracuse during September
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Where is Syracuse?Get accurate weather forecasts for Syracuse, located at latitude 43.048 and longitude -76.147. Stay updated with localized weather information tailored for Syracuse.