June in Biel/Bienne averages a daily high of 23.6°C with nights around 11.8°C. Expect roughly 11.8 wet days totalling 83.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Biel/Bienne is June–September.
Based on PAYERNE, SZ (42.1km), 1995–2024. 30 years of June data.