Click on a day for an hourly weather forecast
The weather in Samnaun in September is very cold with temperatures between 2°C and 12°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Samnaun. 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.
Samnaun is going to experience quite a number of days of snow during September. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!
Our weather forecast can give you a great sense of what weather to expect in Samnaun in September 2026.
If you’re planning to visit Samnaun in the near future, we highly recommend that you review the 14 day weather forecast for Samnaun before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -4° / -13° | 6 | 6 | 21 | 82 mm | Awful | Samnaun in January |
| February | -3° / -13° | 6 | 5 | 20 | 68 mm | Awful | Samnaun in February |
| March | -1° / -10° | 7 | 4 | 22 | 78 mm | Awful | Samnaun in March |
| April | 3° / -5° | 8 | 4 | 21 | 87 mm | Awful | Samnaun in April |
| May | 8° / -1° | 14 | 2 | 21 | 153 mm | Awful | Samnaun in May |
| June | 13° / 4° | 17 | 6 | 9 | 194 mm | Awful | Samnaun in June |
| July | 16° / 5° | 17 | 11 | 4 | 174 mm | Bad | Samnaun in July |
| August | 16° / 6° | 15 | 13 | 4 | 201 mm | Bad | Samnaun in August |
| September | 12° / 2° | 11 | 11 | 8 | 125 mm | Awful | Samnaun in September |
| October | 7° / -2° | 7 | 9 | 15 | 104 mm | Awful | Samnaun in October |
| November | 1° / -6° | 5 | 8 | 18 | 86 mm | Awful | Samnaun in November |
| December | -3° / -12° | 5 | 7 | 20 | 86 mm | Awful | Samnaun in December |