Click on a day for an hourly weather forecast
The temperatures in Groningen in September are usually low and can range between 11°C and 19°C.
You can expect about 3 to 8 days of rain in Groningen 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 Groningen in September 2025.
If you’re planning to visit Groningen in the near future, we highly recommend that you review the 14 day weather forecast for Groningen before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / 1° | 9 | 16 | 6 | 82 mm | Awful | Groningen in January |
| February | 6° / 1° | 9 | 13 | 6 | 75 mm | Awful | Groningen in February |
| March | 10° / 3° | 7 | 23 | 2 | 73 mm | Awful | Groningen in March |
| April | 14° / 5° | 5 | 25 | 1 | 54 mm | Good | Groningen in April |
| May | 17° / 8° | 6 | 25 | 0 | 84 mm | Good | Groningen in May |
| June | 20° / 11° | 6 | 24 | 0 | 104 mm | Good | Groningen in June |
| July | 22° / 13° | 7 | 24 | 0 | 113 mm | Ok | Groningen in July |
| August | 22° / 13° | 5 | 26 | 0 | 95 mm | Good | Groningen in August |
| September | 19° / 11° | 4 | 26 | 0 | 57 mm | Good | Groningen in September |
| October | 14° / 8° | 6 | 25 | 0 | 63 mm | Good | Groningen in October |
| November | 9° / 5° | 6 | 23 | 1 | 67 mm | Ok | Groningen in November |
| December | 6° / 2° | 9 | 17 | 4 | 90 mm | Awful | Groningen in December |