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The temperatures in Obwalden in September are quite cold with temperatures between 9°C and 20°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Obwalden 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 Obwalden in September 2025.
If you’re planning to visit Obwalden in the near future, we highly recommend that you review the 14 day weather forecast for Obwalden before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -4° | 9 | 10 | 12 | 134 mm | Awful | Obwalden in January |
| February | 4° / -3° | 10 | 9 | 11 | 113 mm | Awful | Obwalden in February |
| March | 9° / 0° | 7 | 17 | 6 | 104 mm | Awful | Obwalden in March |
| April | 14° / 3° | 8 | 20 | 2 | 110 mm | Bad | Obwalden in April |
| May | 18° / 6° | 11 | 20 | 0 | 189 mm | Ok | Obwalden in May |
| June | 22° / 10° | 11 | 19 | 0 | 193 mm | Ok | Obwalden in June |
| July | 24° / 12° | 10 | 21 | 0 | 180 mm | Good | Obwalden in July |
| August | 24° / 12° | 9 | 22 | 0 | 160 mm | Good | Obwalden in August |
| September | 20° / 9° | 6 | 24 | 0 | 110 mm | Good | Obwalden in September |
| October | 15° / 5° | 6 | 25 | 0 | 121 mm | Good | Obwalden in October |
| November | 9° / 2° | 8 | 18 | 4 | 128 mm | Awful | Obwalden in November |
| December | 4° / -2° | 11 | 12 | 9 | 171 mm | Awful | Obwalden in December |