St Moritz weather in August 2025

Expect 8°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in St Moritz in August. Check more long-term weather averages for St Moritz in August before you book your next holiday to Switzerland in 2025/2026.

  • 8°C maximum daytime temperature in August in St Moritz8
    8°C max day temperature
  • 6 hours of sunshine per day
  • 20 days with some rainfall in August in St Moritz20
    20 days with some rainfall
  • 3°C minimum night-time temperature in August in St Moritz3
    3°C min night temperature
  • 14 hours of daylight per day in August in St Moritz14
    14 hours of daylight per day
  • No heat & humidity in August in St Moritz0
    No heat & humidity
  • 162 mm monthly rainfall in August in St Moritz162
    162 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in St Moritz7
    7 (High) UV index

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The August weather guide for Switzerland (St Moritz) 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.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Switzerland

How warm is it in St Moritz in August?

Daytime temperatures usually reach 8°C in St Moritz in August, falling to 3°C at night.

How sunny is it in St Moritz in August?

There are normally 6 hours of bright sunshine each day in St Moritz in August - that's 42% of daylight hours.

Does it rain in St Moritz in August?

There are usually 20 days with some rain in St Moritz in August and the average monthly rainfall is 162mm.

St Moritz August sunrise & sunset times

Browse the sunrise and sunset times for St Moritz in August 2025. Select a month to view St Moritz sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:02 19:52
Saturday, 16th August 2025 05:20 19:28
Sunday, 31st August 2025 05:40 19:01

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