Click on a day for an hourly weather forecast
The temperatures in Jever in September are usually low and can range between 12°C and 18°C.
You can expect rain for roughly half of the month of September in Jever. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Jever in September 2026.
If you’re planning to visit Jever in the near future, we highly recommend that you review the 14 day weather forecast for Jever before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / 1° | 10 | 19 | 2 | 66 mm | Awful | Jever in January |
| February | 5° / 1° | 8 | 19 | 1 | 56 mm | Awful | Jever in February |
| March | 8° / 2° | 7 | 22 | 1 | 58 mm | Bad | Jever in March |
| April | 12° / 5° | 7 | 23 | 0 | 48 mm | Ok | Jever in April |
| May | 15° / 8° | 8 | 23 | 0 | 67 mm | Ok | Jever in May |
| June | 19° / 11° | 9 | 21 | 0 | 84 mm | Ok | Jever in June |
| July | 21° / 14° | 11 | 20 | 0 | 95 mm | Ok | Jever in July |
| August | 21° / 14° | 11 | 20 | 0 | 90 mm | Ok | Jever in August |
| September | 18° / 12° | 8 | 22 | 0 | 60 mm | Ok | Jever in September |
| October | 14° / 8° | 9 | 22 | 0 | 67 mm | Ok | Jever in October |
| November | 9° / 5° | 7 | 23 | 0 | 59 mm | Bad | Jever in November |
| December | 5° / 2° | 10 | 19 | 1 | 69 mm | Awful | Jever in December |