Interlaken Weather in September
Switzerland · 30-year monthly averages
👍 Good time to visit
September in Interlaken is pleasantly warm, with average daytime highs around 19°C (67°F) and nighttime lows near 10°C (50°F). Expect roughly 94mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
Avg high
19°C
67°F
Avg low
10°C
50°F
Rainfall
94mm
moderate
Rainy days
10
days with ≥1mm
☀️ About 152 hours of sunshine over the month (~5h/day).
🎒 What to pack
- light layers
- comfortable walking shoes
September vs the rest of the year
FAQ
- How hot is Interlaken in September?
- September in Interlaken is pleasantly warm, with average daytime highs around 19°C (67°F) and nighttime lows near 10°C (50°F). Expect roughly 94mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
- Does it rain a lot in Interlaken in September?
- Interlaken sees around 94mm of precipitation in September on average — moderate by global standards.
- Is September a good time to visit Interlaken?
- September is a good month to visit Interlaken, with generally agreeable conditions.