The temperatures in Biel 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 Biel 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 Biel in September 2023.
If you’re planning to visit Biel in the near future, we highly recommend that you review the 14 day weather forecast for Biel before you arrive.
20° / 9°