Switzerland weather in August 2026

Expect daytime maximum temperatures of 21°C in Switzerland in August based on long-term weather averages. There are 7 hours of sunshine per day on average with 16 days with some rainfall and typically 121 mm of rainfall in the month.

  • 21°C maximum daytime temperature in August in Switzerland (Bern)21
    21°C max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in August in Switzerland (Bern)16
    16 days with some rainfall
  • 11°C minimum night-time temperature in August in Switzerland (Bern)11
    11°C min night temperature
  • 14 hours of daylight per day in August in Switzerland (Bern)14
    14 hours of daylight per day
  • No heat & humidity in August in Switzerland (Bern)0
    No heat & humidity
  • 121 mm monthly rainfall in August in Switzerland (Bern)121
    121 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Switzerland (Bern)7
    7 (High) UV index

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The August weather guide for Switzerland (Bern) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What is the weather in Switzerland in August like?

Summer continues across Switzerland in August, with mostly warm, sunny days. A noticeable feature is the increased chance of afternoon thunderstorms, especially in the Alps.

That said, there are still, on average, at least six hours a day with bright sunshine almost everywhere in the country. And this despite the fact that as the month progresses the number of daylight hours decreases.

Warm & sunny on the Central Plateau

Across the Central Plateau, temperatures are much the same as they are in July, ranging from the mid-teens at night to the mid-twenties during the day.

August in the Bernese Oberland just south of Bern, Switzerland
August in the Bernese Oberland just south of Bern, Switzerland © Murray Foubister - Flickr CC BY-SA 2.0

Once again, cities in the west such as Geneva and Lausanne are a degree or two warmer and sunnier than Bern and Zurich, but overall the weather across the plateau is very pleasant with at least seven hours of sunshine per day on average.

Cloudier in the Jura Mountains

In the Jura Mountains, it is cloudier, with slightly more rain than on the plateau, because of its exposure to weather coming in off the Atlantic; it is also cooler by a few degrees. Expect around six-and-a-half hours of sunshine per day on average, with daytime highs around or just under 20°C; this is the same as in July.

Wetter in the Swiss Alps

In the Swiss Alps, August is the peak of the thunderstorm season, driven by daytime heating that causes warm, moist air to rise. However, the resulting rain is almost always short-lived and only occurs on about a third of days in the month in the late afternoon or early evening.

At the higher resorts, daytime maximum temperatures are a shade cooler than in July at just under 20°C, and there is less sunshine per day on average compared with July, at a little under six hours. Expect clear mornings in the mountains, with cloud building during the day that may or may not later lead to a brief spell of rain.

More unstable conditions in the far south

In the far south of Switzerland it is warmer and more humid than elsewhere in the country in August, with more extensive thunderstorms than in the Alps. As in the Alps, these only occur on about a third of days in the month, but they bring heavier rainfall.

However, as before in July, there is still plenty of sunshine. Expect around eight hours per day on average, with temperatures reaching the high twenties during the day, falling by about 10°C at night.

Switzerland temperatures in August

Below are average maximum temperatures at popular countries, regions and places in Switzerland in August. Select a holiday destination to see more weather parameters.

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How hot is it in Switzerland in August?

Daytime temperatures usually reach 21°C in Bern, Switzerland in August, falling to 11°C at night.

How sunny is it in Switzerland in August?

There are normally 7 hours of bright sunshine each day in Bern, Switzerland in August - that's 47% of daylight hours.

Does it rain in Switzerland in August?

There are usually 16 days with some rain in Bern, Switzerland in August and the average monthly rainfall is 121mm.

Switzerland August sunrise & sunset times

Browse the sunrise and sunset times for Switzerland in August 2026. Select a month to view Switzerland sunrise and sunset times for the next 12 months. The Switzerland sunrise and sunset times shown below are for Bern.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st August 2026 05:10 20:03
Sunday, 16th August 2026 05:29 19:39
Monday, 31st August 2026 05:48 19:12

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