Click on a day for an hourly weather forecast
The temperatures in Bronx in September are quite cold with temperatures between 5°C and 22°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Bronx 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 Bronx in September 2025.
If you’re planning to visit Bronx in the near future, we highly recommend that you review the 14 day weather forecast for Bronx before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -1° / -8° | 9 | 4 | 20 | 181 mm | Awful | Bronx in January |
| February | 1° / -9° | 9 | 3 | 19 | 129 mm | Awful | Bronx in February |
| March | 6° / -4° | 13 | 6 | 15 | 179 mm | Awful | Bronx in March |
| April | 11° / -1° | 10 | 13 | 7 | 120 mm | Awful | Bronx in April |
| May | 18° / 2° | 8 | 23 | 1 | 104 mm | Ok | Bronx in May |
| June | 22° / 5° | 7 | 23 | 0 | 96 mm | Ok | Bronx in June |
| July | 28° / 8° | 3 | 28 | 0 | 33 mm | Perfect | Bronx in July |
| August | 28° / 9° | 2 | 29 | 0 | 25 mm | Perfect | Bronx in August |
| September | 22° / 5° | 4 | 26 | 0 | 58 mm | Good | Bronx in September |
| October | 12° / 0° | 9 | 20 | 2 | 139 mm | Awful | Bronx in October |
| November | 4° / -4° | 11 | 7 | 13 | 172 mm | Awful | Bronx in November |
| December | -1° / -9° | 7 | 5 | 20 | 187 mm | Awful | Bronx in December |