Late summer · Weather & things to do
Interlaken in August
The year's rain peaks now, with about 6.5 in (165 mm) falling in Interlaken, alongside highs near 76°F (25°C) and lows of 60°F (16°C).
Our comfort score puts it mid-table at 68/100, 6th of 12.
- Avg high
- 76°F (25°C)
- Avg low
- 60°F (16°C)
- Rain
- 6.5 in (165 mm)
- Humidity
- 79%
- Cloud cover
- 60%
- Daylight
- ~14 h 01 min
- Comfort score
- 68/100 · Good
What August feels like
Days are warm, averaging 76°F (25°C).
Lows average 60°F (16°C).
With 79% average humidity, it feels muggy.
Expect regular rain: about 6.5 in (165 mm) falls in the month.
Plan around August
August sits mid-table; the best months are September.
- Last warm month for a while: September highs fall to 69°F.
- Inside the wettest three-month stretch, June – August.
- Comfort slips from 72/100 in July to 68/100.
- August sits inside the May – Oct window our Swiss Lakes by Rail route recommends.
What to pack for August
- Light, breathable clotheshighs average 76°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Quick-dry fabrics79% average humidity
- Rain jacket and waterproof shoes6.5 in of rain on average
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Interlaken in August
Wet days call for a roof: these picks favor sit-down and indoor stops, plus a few for drier spells.
Rugenbräu
Local brewery in Matten bei Interlaken with tours and a shop.
Why now A sit-down stop to wait out showers in a month with 6.5 in of rain.
Restaurant Schuh
Classic Swiss restaurant and confectioner on the Höhematte park.
Lake Brienz Cruise
BLS boat from Interlaken Ost across turquoise water to Brienz.
Why now Our curated notes say it's best summer.
Trümmelbach Falls
Glacial falls thundering inside the mountain, reached by a tunnel lift.
Why now Our curated notes say it's best Apr–Nov.
Giessbach Falls
Waterfalls dropping in 14 tiers, reached by boat and historic funicular.
Why now Our curated notes say it's best May–Oct.
Nearby in August
- Lucerne in August~33 mi · highs 75°F, 6.2 in rain · similar daytime temperatures, about as wet
- Andermatt in August~34 mi · highs 61°F, 7.1 in rain · 8°C (15°F) cooler by day, wetter
- Zermatt in August~47 mi · highs 65°F, 3.9 in rain · 7°C (12°F) cooler by day, drier
- Zurich in August~57 mi · highs 74°F, 5.7 in rain · 1°C (2°F) cooler by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~1,854 m to Interlaken's ~569 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Interlaken in August: quick answers
Is August a good time to visit Interlaken?
It's middling, scoring 68/100. The best months are September, at up to 82. Expect highs of 76°F (25°C) and 6.5 in (165 mm) of rain. August is inside the May – Oct window our Swiss Lakes by Rail route recommends.
How hot is Interlaken in August?
Average highs are 76°F (25°C) and average lows 60°F (16°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Interlaken in August?
Yes: about 6.5 in (165 mm) of rain falls across August on average, the wettest month of the year. The annual total is about 54.3 in (1379 mm).
What should I pack for Interlaken in August?
Bring light, breathable clothes (highs average 76°F), sunscreen, sunglasses and a hat (high UV on clear days), quick-dry fabrics (79% average humidity), rain jacket and waterproof shoes (6.5 in of rain on average) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Interlaken
Routes in season in August
- Swiss Lakes by Rail May – Oct
Planning Interlaken in August?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.