St Gallen weather in May 2025

Expect 16°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in St Gallen in May. Check more long-term weather averages for St Gallen in May before you book your next holiday to Switzerland in 2025/2026.

  • 16°C maximum daytime temperature in May in St Gallen16
    16°C max day temperature
  • 6 hours of sunshine per day
  • 18 days with some rainfall in May in St Gallen18
    18 days with some rainfall
  • 7°C minimum night-time temperature in May in St Gallen7
    7°C min night temperature
  • 15 hours of daylight per day in May in St Gallen15
    15 hours of daylight per day
  • No heat & humidity in May in St Gallen0
    No heat & humidity
  • 108 mm monthly rainfall in May in St Gallen108
    108 mm of monthly rainfall
  • UV (maximum) index 7 (High) in May in St Gallen7
    7 (High) UV index

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The May weather guide for Switzerland (St Gallen) 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 Gallen in May?

Daytime temperatures usually reach 16°C in St Gallen in May, falling to 7°C at night.

How sunny is it in St Gallen in May?

There are normally 6 hours of bright sunshine each day in St Gallen in May - that's 40% of daylight hours.

Does it rain in St Gallen in May?

There are usually 18 days with some rain in St Gallen in May and the average monthly rainfall is 108mm.

St Gallen May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:06 19:34
Friday, 16th May 2025 04:44 19:54
Saturday, 31st May 2025 04:30 20:11

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