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Adelboden Weather in September
September in Adelboden brings moderate temperatures around 14°C (57°F) during the day, dropping to 3°C (37°F) at night, with quite a bit of rainfall expected, averaging around 150 mm (5.9 in) for the month.
Rainfall in Adelboden in September
This month experiences about 15 days of rain according to historical data, averaging 150 mm (5.9 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Adelboden in September
Daytime temperatures in Adelboden reach 14°C (57°F) in September, dropping to 3°C (37°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 3°C (37°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Adelboden in September
The month brings about 149 hours of sunlight, offering a comfortable mix of sun and overcast.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Adelboden.
Adelboden Temperature in September
Min Temperature
3°C (37°F)
Max Temperature
14°C (57°F)
Chance of Rain
49%
Precipitation
150 mm (5.9 in)
Rainy days
15 days
Humidity
80% *
Sunshine
149 hours *
Percentage Sunshine
52% *
* Data from: Interlaken, Switzerland (31 KM, 19 Miles).
Adelboden Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Adelboden - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Adelboden typically drop from around 18°C (64°F) at the start of September to approximately 15°C (59°F) by the end. Nights are cold, with lows typically ranging from 5°C (41°F) to 9°C (48°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Adelboden in September
Browse day-by-day weather records for Adelboden spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Adelboden historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Adelboden.
- The hottest September day on record in Adelboden reached 31°C (88°F) (September 14, 1987).
- Adelboden experienced its chilliest September day on September 24, 2002, reaching only 1°C (34°F).
- The lowest overnight temperature recorded in September was -13°C (9°F) (September 29, 1995).
- The wettest day in September Adelboden was on September 5, 2016 with 51 mm (2 in) of precipitation.
Best Places in Switzerland in September
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Adelboden in September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Adelboden in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling5/10 -
Walking5/10 -
Camping3/10 -
Outdoor sports9/10
Adelboden 3-Day Forecast
More climate data for Adelboden
Temperature Rainfall Sunshine Humidity
See the full Adelboden climate overview or explore weather in Switzerland.
Popular in September
Where to go in September - average daytime high across popular destinations.
Zürich
20°C (68°F) Crans-Montana15°C (59°F) Engelberg
15°C (59°F) Nendaz15°C (59°F) Saas-Fee12°C (54°F) Davos13°C (55°F) Grindelwald13°C (55°F) Zermatt11°C (52°F) Bucket list
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