Weather in Interlaken in September
The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.
Climate Overview
September is an excellent time to visit Interlaken. Interlaken has a Moderate climate with average yearly highs of 20°C, lows of 13°C, and approximately 9 rainy days per month.
20°C
13°C
9days
12.6h
Is September a good time to visit Interlaken?
The weather is near-perfect with ideal temperatures and minimal rain.
Daylight
7:07 AM
7:43 PM
Weather by Month
| Month | High | Low | Rainy days | Condition |
|---|---|---|---|---|
| January | 9°C | 2°C | 10 | Good |
| February | 11°C | 3°C | 16 | Wet |
| March | 11°C | 3°C | 16 | Wet |
| April | 17°C | 6°C | 6 | Good |
| May | 18°C | 9°C | 16 | Wet |
| June | 20°C | 13°C | 22 | Excellent (best) |
| July | 23°C | 15°C | 16 | Excellent (best) |
| August | 23°C | 15°C | 16 | Excellent (best) |
| September | 20°C | 13°C | 9 | Excellent (best) |
| October | 14°C | 8°C | 20 | Wet |
| November | 12°C | 5°C | 5 | Good |
| December | 6°C | 1°C | 17 | Wet |
Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025
What to Pack for September
Layers, a light jacket, comfortable walking shoes, and an umbrella.
Planning a trip to Interlaken?
Common Questions
Is September a good time to visit Interlaken? +
September is typically Excellent for visiting Interlaken, with average highs of 20°C and around 9 rainy days.
What should I pack for Interlaken in September? +
With highs of 20°C and lows of 13°C in {month}, we recommend: Layers, a light jacket, comfortable walking shoes, and an umbrella.
Does it rain a lot in Interlaken in September? +
Interlaken typically sees around 9 rainy days in September.
How many hours of daylight are there in Interlaken in September? +
In September, Interlaken gets approximately 12.6 hours of daylight per day.
Is September peak season in Interlaken? +
Yes, September is peak season in Interlaken. Expect higher prices and more crowds, but also the best weather.
What is the best month to visit Interlaken? +
The best months to visit Interlaken are June, July, August, September, when the weather is optimal for sightseeing.
More Interlaken Guides
Best Time to Visit
Coming soon
Things to Do
Coming soon
Itineraries
Coming soon
Overview
Complete travel guide for Interlaken: top things to do, itineraries, and typical costs.