Click on a day for an hourly weather forecast
The weather in Davos in September is very cold with temperatures between 3°C and 14°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Davos. 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.
You can expect a few days of snow in Davos during September. It’s important to get out your snow boots and warm mittens to stay warm while you explore Davos.
Our weather forecast can give you a great sense of what weather to expect in Davos in September 2025.
If you’re planning to visit Davos in the near future, we highly recommend that you review the 14 day weather forecast for Davos before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -3° / -12° | 7 | 5 | 21 | 71 mm | Awful | Davos in January |
| February | -2° / -12° | 5 | 5 | 20 | 58 mm | Awful | Davos in February |
| March | 1° / -8° | 9 | 4 | 21 | 68 mm | Awful | Davos in March |
| April | 6° / -4° | 9 | 5 | 17 | 85 mm | Awful | Davos in April |
| May | 10° / 0° | 16 | 5 | 12 | 135 mm | Awful | Davos in May |
| June | 15° / 4° | 16 | 12 | 2 | 154 mm | Bad | Davos in June |
| July | 17° / 6° | 14 | 16 | 1 | 130 mm | Ok | Davos in July |
| August | 18° / 6° | 13 | 17 | 1 | 138 mm | Ok | Davos in August |
| September | 14° / 3° | 9 | 17 | 4 | 94 mm | Bad | Davos in September |
| October | 9° / -1° | 6 | 15 | 9 | 81 mm | Bad | Davos in October |
| November | 3° / -5° | 6 | 8 | 16 | 85 mm | Awful | Davos in November |
| December | -1° / -10° | 5 | 7 | 20 | 73 mm | Awful | Davos in December |