Interlaken Weather in August
August in Interlaken brings moderate temperatures, with daytime highs of 18°C (64°F) and nights around 8°C (46°F). It's part of the rainy season, with 214 mm (8.4 in) of rainfall on average, so an umbrella or poncho is a good idea.
Rainfall in Interlaken in August
As part of the rainy season, Interlaken sees around 18 days of rain in August, with an average of 214 mm (8.4 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in Interlaken in August
In August, expect moderate temperatures in Interlaken, with highs of 18°C (64°F) and lows of 8°C (46°F) at night. August is part of the summer season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Interlaken in August
Expect a lot of sunshine this month, with about 195 hours of sun. Showers typically arrive in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, there's plenty of sunshine for sightseeing.August in Interlaken has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Interlaken's climate page.
Interlaken Temperature in August
Min Temperature
8°C (46°F)
Max Temperature
18°C (64°F)
Chance of Rain
60%
Precipitation
214 mm (8.4 in)
Rainy days
18 days
Humidity
76%
Sunshine
195 hours
Percentage Sunshine
52%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Interlaken typically stay consistent throughout August, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 13°C (55°F).
Average temperatures in August
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 August
Historical weather for Interlaken in August
Browse day-by-day weather records for Interlaken spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Interlaken historical weather extremes in August
According to our 49 years of weather records for Interlaken, the following extremes were recorded between 1976 and 2025.
- The warmest day in August was on August 13, 2003, with a maximum of 37°C (99°F).
- The coldest August day was on August 8, 1978, with a maximum of 8°C (46°F).
- Interlaken registered its coldest August night on August 31, 1978, with temperatures dropping to -9°C (16°F).
- The wettest August day on record brought 90 mm (3.5 in) of precipitation to Interlaken (August 22, 2005).
Best Places in Switzerland in August
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in August →
perfect weather
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What to Wear in Interlaken in August
Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Interlaken in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Interlaken's climate page.
Temperature Rainfall Sunshine Humidity
See the full Interlaken climate overview or explore weather in Switzerland.
