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The weather in Bormio in September is very cold with temperatures between 2°C and 11°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Bormio. 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.
Please note that Bormio can expect a few days of snow in September.
Our weather forecast can give you a great sense of what weather to expect in Bormio in September 2025.
If you’re planning to visit Bormio in the near future, we highly recommend that you review the 14 day weather forecast for Bormio before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -5° / -14° | 6 | 7 | 19 | 77 mm | Awful | Bormio in January |
| February | -4° / -14° | 6 | 6 | 19 | 91 mm | Awful | Bormio in February |
| March | -2° / -11° | 9 | 7 | 17 | 103 mm | Awful | Bormio in March |
| April | 2° / -7° | 13 | 8 | 11 | 159 mm | Awful | Bormio in April |
| May | 6° / -2° | 19 | 8 | 5 | 216 mm | Awful | Bormio in May |
| June | 13° / 3° | 19 | 11 | 0 | 221 mm | Bad | Bormio in June |
| July | 15° / 5° | 19 | 12 | 0 | 233 mm | Ok | Bormio in July |
| August | 15° / 5° | 18 | 13 | 0 | 266 mm | Ok | Bormio in August |
| September | 11° / 2° | 13 | 16 | 1 | 178 mm | Bad | Bormio in September |
| October | 5° / -3° | 8 | 17 | 5 | 173 mm | Awful | Bormio in October |
| November | 0° / -8° | 9 | 11 | 10 | 168 mm | Awful | Bormio in November |
| December | -4° / -13° | 6 | 10 | 16 | 98 mm | Awful | Bormio in December |