Click on a day for an hourly weather forecast
The temperatures in Jersey City in September are comfortable with low of 18°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Jersey City 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 Jersey City in September 2025.
If you’re planning to visit Jersey City in the near future, we highly recommend that you review the 14 day weather forecast for Jersey City before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -2° | 6 | 18 | 7 | 50 mm | Awful | Jersey City in January |
| February | 4° / -1° | 5 | 16 | 7 | 64 mm | Awful | Jersey City in February |
| March | 8° / 3° | 5 | 22 | 4 | 70 mm | Bad | Jersey City in March |
| April | 14° / 8° | 5 | 25 | 0 | 63 mm | Good | Jersey City in April |
| May | 19° / 13° | 6 | 25 | 0 | 90 mm | Good | Jersey City in May |
| June | 24° / 18° | 5 | 25 | 0 | 103 mm | Perfect | Jersey City in June |
| July | 28° / 22° | 7 | 24 | 0 | 134 mm | Good | Jersey City in July |
| August | 27° / 22° | 5 | 26 | 0 | 122 mm | Perfect | Jersey City in August |
| September | 24° / 18° | 4 | 26 | 0 | 83 mm | Perfect | Jersey City in September |
| October | 18° / 13° | 5 | 26 | 0 | 79 mm | Good | Jersey City in October |
| November | 12° / 7° | 4 | 25 | 1 | 50 mm | Ok | Jersey City in November |
| December | 7° / 2° | 5 | 21 | 5 | 78 mm | Bad | Jersey City in December |