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The temperatures in Syracuse in September are comfortable with low of 11°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Syracuse during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Syracuse in September 2025.
If you’re planning to visit Syracuse in the near future, we highly recommend that you review the 14 day weather forecast for Syracuse before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -3° / -9° | 8 | 2 | 24 | 100 mm | Awful | Syracuse in January |
| February | -1° / -8° | 7 | 3 | 21 | 100 mm | Awful | Syracuse in February |
| March | 4° / -3° | 9 | 8 | 15 | 103 mm | Awful | Syracuse in March |
| April | 11° / 2° | 10 | 13 | 6 | 139 mm | Awful | Syracuse in April |
| May | 19° / 8° | 8 | 22 | 0 | 146 mm | Ok | Syracuse in May |
| June | 23° / 12° | 8 | 22 | 0 | 162 mm | Good | Syracuse in June |
| July | 26° / 15° | 8 | 23 | 0 | 145 mm | Good | Syracuse in July |
| August | 25° / 15° | 6 | 25 | 0 | 142 mm | Perfect | Syracuse in August |
| September | 22° / 11° | 7 | 23 | 0 | 118 mm | Ok | Syracuse in September |
| October | 15° / 7° | 9 | 21 | 1 | 141 mm | Ok | Syracuse in October |
| November | 7° / 1° | 9 | 11 | 10 | 99 mm | Awful | Syracuse in November |
| December | 1° / -4° | 9 | 5 | 18 | 107 mm | Awful | Syracuse in December |