Click on a day for an hourly weather forecast
The weather in Isny in January is very cold with temperatures between -5°C and 1°C, warm clothes are a must.
You can expect rain for roughly half of the month of January in Isny. 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 Isny 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 Isny in January 2026.
If you’re planning to visit Isny in the near future, we highly recommend that you review the 14 day weather forecast for Isny before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -5° | 8 | 6 | 17 | 203 mm | Awful | Isny in January |
| February | 2° / -5° | 7 | 6 | 17 | 145 mm | Awful | Isny in February |
| March | 7° / -2° | 8 | 11 | 12 | 153 mm | Awful | Isny in March |
| April | 12° / 2° | 9 | 15 | 6 | 134 mm | Awful | Isny in April |
| May | 16° / 6° | 16 | 14 | 1 | 295 mm | Ok | Isny in May |
| June | 20° / 10° | 14 | 16 | 0 | 286 mm | Ok | Isny in June |
| July | 21° / 11° | 12 | 19 | 0 | 244 mm | Ok | Isny in July |
| August | 21° / 11° | 12 | 19 | 0 | 258 mm | Ok | Isny in August |
| September | 18° / 8° | 9 | 21 | 0 | 161 mm | Ok | Isny in September |
| October | 14° / 4° | 7 | 22 | 2 | 149 mm | Bad | Isny in October |
| November | 8° / 0° | 6 | 16 | 8 | 120 mm | Bad | Isny in November |
| December | 3° / -3° | 9 | 8 | 15 | 173 mm | Awful | Isny in December |