Click on a day for an hourly weather forecast
The temperatures in Flensburg in October are quite cold with temperatures between 8°C and 13°C, warm clothes are a must.
You can expect rain for roughly half of the month of October in Flensburg. 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 Flensburg in October 2026.
If you’re planning to visit Flensburg in the near future, we highly recommend that you review the 14 day weather forecast for Flensburg before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / 0° | 10 | 12 | 9 | 95 mm | Awful | Flensburg in January |
| February | 4° / 0° | 8 | 10 | 11 | 74 mm | Awful | Flensburg in February |
| March | 7° / 2° | 7 | 19 | 5 | 63 mm | Awful | Flensburg in March |
| April | 12° / 4° | 5 | 23 | 2 | 44 mm | Bad | Flensburg in April |
| May | 15° / 7° | 7 | 24 | 0 | 78 mm | Ok | Flensburg in May |
| June | 19° / 11° | 5 | 25 | 0 | 77 mm | Good | Flensburg in June |
| July | 21° / 13° | 7 | 24 | 0 | 100 mm | Ok | Flensburg in July |
| August | 21° / 14° | 6 | 25 | 0 | 114 mm | Good | Flensburg in August |
| September | 18° / 12° | 6 | 24 | 0 | 105 mm | Good | Flensburg in September |
| October | 13° / 8° | 8 | 23 | 0 | 116 mm | Bad | Flensburg in October |
| November | 8° / 5° | 9 | 19 | 2 | 100 mm | Awful | Flensburg in November |
| December | 5° / 2° | 10 | 15 | 6 | 105 mm | Awful | Flensburg in December |