Weather in Biel/Bienne in September
Biel/Bienne, Switzerland averages a high of 19.7°C (67.5°F) and low of 11.7°C (53.1°F) in September, with 13 rain days and 9.1 hours of daily sunshine. Travel score: 70.3/100 (Good). The best time to visit Biel/Bienne is July.
High
20°C67°F
Low
12°C53°F
🌧️
13
rain days
☀️
9.1
hrs/day sunshine
💧
79%
humidity
70— Good
September in Biel/Bienne is mild and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Biel/Bienne?
How much does it rain in Biel/Bienne in September?
Biel/Bienne receives an average of 104.4mm of rainfall across 13 rainy days in September. The annual total is 1326mm.
What should I pack for Biel/Bienne in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 20°C
Recommended
🧥
Light rain jacket
Some rainy days expected (13 days)
☔
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
Traveling to Switzerland in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
🏛️ 121 countries·📅 Updated yearly·✈️ Free forever
Compare Biel/Bienne
Popular comparisons:
How can I plan my trip to Biel/Bienne?
What other cities are near Biel/Bienne?
What are other popular cities in Switzerland?
What is the weather like in other months in Biel/Bienne?
Data based on 1994–2024 averages · Last updated: 2024-12-31