The temperatures in Interlaken in August are quite cold with temperatures between 6°C and 16°C, warm clothes are a must.
There’s going to be many days of rain during the month of August in Interlaken.
Interlaken 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!
Please note that Interlaken can expect a few days of snow in August.
Our weather forecast can give you a great sense of what weather to expect in Interlaken in August 2025.
If you’re planning to visit Interlaken in the near future, we highly recommend that you review the 14 day weather forecast for Interlaken before you arrive.