Click on a day for an hourly weather forecast
The temperatures in Lugano in September are usually low and can range between 10°C and 18°C.
You can expect about 3 to 8 days of rain in Lugano during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Lugano in September 2025.
If you’re planning to visit Lugano in the near future, we highly recommend that you review the 14 day weather forecast for Lugano before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -2° | 4 | 16 | 11 | 50 mm | Awful | Lugano in January |
| February | 4° / -2° | 5 | 12 | 12 | 56 mm | Awful | Lugano in February |
| March | 8° / 1° | 5 | 17 | 10 | 83 mm | Bad | Lugano in March |
| April | 12° / 4° | 7 | 19 | 5 | 156 mm | Awful | Lugano in April |
| May | 16° / 7° | 10 | 21 | 0 | 178 mm | Ok | Lugano in May |
| June | 20° / 11° | 10 | 20 | 0 | 169 mm | Ok | Lugano in June |
| July | 22° / 13° | 10 | 21 | 0 | 157 mm | Ok | Lugano in July |
| August | 22° / 13° | 8 | 23 | 0 | 152 mm | Ok | Lugano in August |
| September | 18° / 10° | 4 | 26 | 0 | 88 mm | Good | Lugano in September |
| October | 13° / 6° | 4 | 26 | 2 | 157 mm | Bad | Lugano in October |
| November | 8° / 3° | 7 | 16 | 7 | 212 mm | Awful | Lugano in November |
| December | 4° / -1° | 3 | 16 | 12 | 77 mm | Awful | Lugano in December |