Interlaken weather in September
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Interlaken September weather at a glance
In September, Interlaken averages 15.4°C, with typical highs of 19.2°C and lows of 12.3°C. The historical average is 19 wet days and 81% humidity.
Interlaken September temperature & humidity
Interlaken September rain & wet days
Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.
What to wear in Interlaken in September
T-shirts or long sleeves with one light outer layer should be comfortable. Rain is frequent at roughly 19 days in the month; pack a rain jacket and water-resistant shoes.
- DaytimeLong sleeves and a light jacket · average high 19.2°C
- Morning & eveningLong sleeves with a jacket or cardigan · average low 12.3°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
Coupang affiliate links · We earn a commission on purchases. Products are sold on the Korean Coupang store.
Interlaken September sunrise & sunset times
2026 September · Local time (Europe/Zurich)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-09-01 | 06:48 | 20:08 | 13h 20m |
| 2026-09-15 | 07:06 | 19:41 | 12h 34m |
| 2026-09-30 | 07:26 | 19:11 | 11h 45m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
Interlaken travel updates
Watch live CCTV
- Interlaken and nearby viewpointsInterlaken Tourism · Camera directory
Check the camera timestamp at the source.
Today’s weather and forecast
Check temperature, rain and wind in Windy.
Forecast · Windy. Monthly averages are in the Temperature section.
Interlaken news search
Search for recent news and check publication dates before you travel.
Interlaken city map
This map shows the city area, not a specific meeting point.
Jungfrau Region mountain webcams
Consecutive Swiss Travel Pass e-ticket
Check Swiss Travel Pass tickets ↗Affiliate link · We may earn a commission. Check departure location, dates and terms on MyRealTrip.
Check the camera timestamp. Panoramas may be updated still images. Summit temperatures differ from the town below.
Interlaken travel essentials
Popular MyRealTrip products · city search, sorted by sales · Product names are in Korean.
- Swiss travel pass
[공식 판매처] 2026 스위스 패스 E-티켓 (연속)Book now ↗ - Travel SIM card
[유럽 유심] Three Mobile 30일 총 6~30GB 통화 무제한 공항수령Book now ↗ - 본사 직영 스위스 패러글라이딩 Big Blue｜26 여름 얼리버드 특가Book now ↗
- Travel tour
[융프라우 여행의 완성] 한국인 가이드와 융프라우 전체 투어 : 스위스/인터라켄Book now ↗ - Portable Wi-Fi rental
[포켓와이파이] 유럽 와이파이도시락 무제한 데이터 + 해외로밍전화 무료Book now ↗
Explore with Klook
Klook.comAffiliate widget · We may earn a commission on bookings.
Interlaken hotel search · Trip.com
Search hotels by destination, dates and number of guests. The Trip.com widget is in Korean.
Affiliate widget · A qualifying booking may earn us a commission. Trip.com may use cookies in this search widget.
Best months to visit Interlaken
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
September weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Interlaken weather like in September?
In September, Interlaken averages 15.4°C, with typical highs of 19.2°C and lows of 12.3°C. The historical average is 19 wet days and 81% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Interlaken in September?
There are about 19 wet days in September. Pack a rain jacket and water-resistant shoes.
What should I wear in Interlaken in September?
T-shirts or long sleeves with one light outer layer should be comfortable. Rain is frequent at roughly 19 days in the month; pack a rain jacket and water-resistant shoes.
What are the best months to visit Interlaken?
No months meet the A or B threshold in our temperature-and-precipitation score. Compare the monthly values with your planned activities.
Where can I check Interlaken weather in September in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Interlaken in September?
On 2026-09-15, calculated sunrise is 07:06 and sunset is 19:41 in local time (Europe/Zurich). Times vary by date and terrain.
Interlaken weather by month
More Europe destinations in September
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations