Mountain air

Interlaken weather in August

Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.

72

Holiday weather in August

Good

Best time to visit: May – October

Best for skiing: January – March

What is the weather like in Interlaken in August?

In August, Interlaken is warm: daytime highs average 22 °C, and nights cool down to about 13 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 103 mm in total. All in all, August is a good month for a holiday in Interlaken.

August compared

How the weather changes from July to September. Tap a month to open it.

JulyJulAugustAugSeptemberSep
Score727271
Day22°22°19°
Night13°13°10°
Sun7 h6 h5 h
Rain days141312

More details for August

Daylight
14 h 16 min06:25 – 20:41
UV index
7 · highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or more
Wind
9 km/haverage daily peak
Cloud cover
56 %on average
Hot days
1 day30 °C or more
Snow days
0 days1 cm or more of fresh snow
Time zone
UTC+2Europe/Zurich

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %57 %
  • Few rainy daysweight 30 %34 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in August

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings
  • Rain jacket or umbrella

Interlaken in August: quick answers

Is Interlaken hot in August?

Warm rather than hot: in August, daytime highs in Interlaken average 22 °C and nights cool to about 13 °C. On about 1 days the thermometer climbs to 30 °C or more.

Does it rain much in Interlaken in August?

Rain is frequent, with about 13 rainy days and 103 mm in total.

Interlaken month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)