Click on a day for an hourly weather forecast
The weather in Ilmenau in January is very cold with temperatures between -3°C and 2°C, warm clothes are a must.
You can expect rain for roughly half of the month of January in Ilmenau. 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.
Let it snow! You can expect Ilmenau to be covered in white during the month of January. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.
Our weather forecast can give you a great sense of what weather to expect in Ilmenau in January 2026.
If you’re planning to visit Ilmenau in the near future, we highly recommend that you review the 14 day weather forecast for Ilmenau before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 2° / -3° | 9 | 5 | 19 | 104 mm | Awful | Ilmenau in January |
| February | 3° / -3° | 8 | 5 | 16 | 72 mm | Awful | Ilmenau in February |
| March | 8° / 0° | 8 | 12 | 11 | 69 mm | Awful | Ilmenau in March |
| April | 14° / 4° | 5 | 20 | 4 | 58 mm | Ok | Ilmenau in April |
| May | 17° / 6° | 8 | 23 | 0 | 117 mm | Ok | Ilmenau in May |
| June | 21° / 10° | 8 | 22 | 0 | 129 mm | Ok | Ilmenau in June |
| July | 23° / 12° | 7 | 24 | 0 | 124 mm | Good | Ilmenau in July |
| August | 23° / 13° | 6 | 25 | 0 | 107 mm | Perfect | Ilmenau in August |
| September | 19° / 9° | 5 | 25 | 0 | 79 mm | Good | Ilmenau in September |
| October | 13° / 5° | 7 | 22 | 1 | 83 mm | Bad | Ilmenau in October |
| November | 7° / 2° | 8 | 15 | 7 | 84 mm | Awful | Ilmenau in November |
| December | 3° / -1° | 11 | 6 | 15 | 104 mm | Awful | Ilmenau in December |