Zermatt weather in September 2025

Expect 7°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Zermatt in September. Check more long-term weather averages for Zermatt in September before you book your next holiday to Switzerland in 2025/2026.

  • 7°C maximum daytime temperature in September in Zermatt7
    7°C max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in September in Zermatt15
    15 days with some rainfall
  • 1°C minimum night-time temperature in September in Zermatt1
    1°C min night temperature
  • 13 hours of daylight per day in September in Zermatt13
    13 hours of daylight per day
  • No heat & humidity in September in Zermatt0
    No heat & humidity
  • 140 mm monthly rainfall in September in Zermatt140
    140 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Zermatt5
    5 (Moderate) UV index

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The September weather guide for Switzerland (Zermatt) 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 cold is it in Zermatt in September?

Daytime temperatures usually reach 7°C in Zermatt in September, falling to 1°C at night.

How sunny is it in Zermatt in September?

There are normally 6 hours of bright sunshine each day in Zermatt in September - that's 47% of daylight hours.

Does it rain in Zermatt in September?

There are usually 15 days with some rain in Zermatt in September and the average monthly rainfall is 140mm.

Zermatt September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:50 19:07
Monday, 15th September 2025 06:07 18:40
Tuesday, 30th September 2025 06:26 18:11

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