The temperatures in Biel in May are quite cold with temperatures between 6°C and 18°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Biel. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Biel in May 2025.
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.
Temperatures
18° / 6°
Rainy Days
11
Snowy Days
0
Dry Days
20
Rainfall
189
mm
Sun Hours
9.7
Hrs
