Interlaken weather in August
“Mild and bright — an underrated time to visit.”
Roughly 15 rainy days across the month, on average.
August in Interlaken brings warm, pleasant conditions perfect for outdoor exploration. Daytime temperatures average 24.5°C (76°F), while nights cool to 16.0°C (61°F). You'll experience around 182.8mm of rainfall spread across approximately 16 rainy days, so afternoon thunderstorms are common in the mountains. Sunshine reaches 10.8 hours daily, offering excellent visibility for hiking and sightseeing when skies clear.
This is peak summer season in Interlaken, with vibrant energy throughout the town. The region hosts various cultural events and outdoor festivals celebrating Alpine traditions. Expect moderate to high crowds, as families and adventure seekers flock to the Swiss Alps during school holidays. The atmosphere is lively and festive, with long daylight hours extending your exploration time.
For 2026, August remains an ideal month to visit despite occasional rain. The warm temperatures make hiking comfortable, and the frequent showers keep the landscape lush and green. Pack layers and waterproof gear, as weather can shift quickly at elevation. Book accommodations and popular activities in advance, as this month fills up quickly.
What to pack for Interlaken in August
- •A light layer for cool mornings and evenings
- •A compact travel umbrella — one you'll actually carry
- •Reef-safe sunscreen and polarised sunglasses
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Interlaken in August
- →Breathable travel pantsAmazon · shop this
- →Packable rain jacketAmazon · shop this
- →Compact travel umbrellaAmazon · shop this
- →Waterproof dry bagAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
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Where to stay in Interlaken
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Compare hotels on Booking.com→Things worth doing
Alpine hiking on Jungfrau trails, paragliding over mountain valleys, canyoning in glacial waters, scenic train rides through the Bernese Oberland.
Other places with a similar climate right now
Interlaken in August — FAQ
Q01Is August a good time to visit Interlaken?
Is August a good time to visit Interlaken?
It is a challenging month — you may want to consider another time of year. In August, Interlaken averages a high of 25°C (77°F) and a low of 16°C (61°F), with 177mm of rainfall across roughly 15 rainy days.
Q02What is the average temperature in Interlaken in August?
What is the average temperature in Interlaken in August?
The average high temperature in Interlaken during August is 25°C (77°F), with an average low of 16°C (61°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does Interlaken have in August?
How many rainy days does Interlaken have in August?
Interlaken averages approximately 15 rainy days in August, with a total monthly rainfall of about 177mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Interlaken in August?
What should I pack for Interlaken in August?
For Interlaken in August, pack layered clothing for changing temperatures, a compact umbrella or waterproof jacket, sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is Interlaken in August?
How crowded is Interlaken in August?
Tourist crowds in Interlaken during August are typically moderate. Consider this when planning accommodation — prices track crowd levels closely.