Click on a day for an hourly weather forecast
The temperatures in Wengen in August are quite cold with temperatures between 5°C and 17°C, warm clothes are a must.
There’s going to be many days of rain during the month of August in Wengen.
Wengen should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in Wengen in August 2026.
If you’re planning to visit Wengen in the near future, we highly recommend that you review the 14 day weather forecast for Wengen before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -13° | 4 | 7 | 20 | 129 mm | Awful | Wengen in January |
| February | -1° / -13° | 3 | 6 | 20 | 97 mm | Awful | Wengen in February |
| March | 2° / -10° | 8 | 6 | 19 | 125 mm | Awful | Wengen in March |
| April | 5° / -5° | 11 | 8 | 11 | 138 mm | Awful | Wengen in April |
| May | 9° / -2° | 18 | 6 | 7 | 241 mm | Awful | Wengen in May |
| June | 15° / 3° | 19 | 11 | 0 | 247 mm | Ok | Wengen in June |
| July | 17° / 5° | 17 | 14 | 0 | 237 mm | Ok | Wengen in July |
| August | 17° / 5° | 16 | 15 | 0 | 239 mm | Ok | Wengen in August |
| September | 14° / 2° | 11 | 17 | 1 | 140 mm | Ok | Wengen in September |
| October | 8° / -3° | 7 | 18 | 6 | 133 mm | Awful | Wengen in October |
| November | 4° / -7° | 5 | 12 | 13 | 118 mm | Awful | Wengen in November |
| December | -1° / -12° | 4 | 8 | 19 | 117 mm | Awful | Wengen in December |