Click on a day for an hourly weather forecast
The temperatures in Merzig in September are usually low and can range between 11°C and 20°C.
You can expect about 3 to 8 days of rain in Merzig 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 Merzig in September 2026.
If you’re planning to visit Merzig in the near future, we highly recommend that you review the 14 day weather forecast for Merzig before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -1° | 11 | 18 | 2 | 88 mm | Awful | Merzig in January |
| February | 6° / 0° | 9 | 18 | 1 | 71 mm | Awful | Merzig in February |
| March | 10° / 2° | 7 | 23 | 1 | 63 mm | Bad | Merzig in March |
| April | 14° / 5° | 8 | 22 | 0 | 63 mm | Ok | Merzig in April |
| May | 17° / 8° | 9 | 22 | 0 | 88 mm | Ok | Merzig in May |
| June | 22° / 12° | 10 | 20 | 0 | 84 mm | Ok | Merzig in June |
| July | 24° / 14° | 9 | 22 | 0 | 79 mm | Good | Merzig in July |
| August | 24° / 14° | 10 | 21 | 0 | 78 mm | Good | Merzig in August |
| September | 20° / 11° | 6 | 24 | 0 | 73 mm | Good | Merzig in September |
| October | 14° / 7° | 8 | 23 | 0 | 77 mm | Ok | Merzig in October |
| November | 9° / 3° | 9 | 20 | 1 | 92 mm | Bad | Merzig in November |
| December | 5° / 1° | 12 | 15 | 3 | 115 mm | Awful | Merzig in December |