Luzern weather in August 2025

Expect 21°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Luzern in August. Check more long-term weather averages for Luzern in August before you book your next holiday to Switzerland in 2025/2026.

  • 21°C maximum daytime temperature in August in Luzern21
    21°C max day temperature
  • 6 hours of sunshine per day
  • 17 days with some rainfall in August in Luzern17
    17 days with some rainfall
  • 12°C minimum night-time temperature in August in Luzern12
    12°C min night temperature
  • 14 hours of daylight per day in August in Luzern14
    14 hours of daylight per day
  • No heat & humidity in August in Luzern0
    No heat & humidity
  • 157 mm monthly rainfall in August in Luzern157
    157 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Luzern7
    7 (High) UV index

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The August weather guide for Switzerland (Luzern) 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 hot is it in Luzern in August?

Daytime temperatures usually reach 21°C in Luzern in August, falling to 12°C at night.

How sunny is it in Luzern in August?

There are normally 6 hours of bright sunshine each day in Luzern in August - that's 45% of daylight hours.

Does it rain in Luzern in August?

There are usually 17 days with some rain in Luzern in August and the average monthly rainfall is 157mm.

Luzern August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:06 19:59
Saturday, 16th August 2025 05:25 19:36
Sunday, 31st August 2025 05:45 19:08

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