Please make suggestions if you find new useful links.
data download page: https://www.meteosuisse.admin.ch/services-et-publications/service/open-data.html
Measurement network SwissMetNet and more (map): https://www.meteoschweiz.admin.ch/service-und-publikationen/applikationen/messwerte-und-messnetze.html
Extreme precipitation- App: https://www.meteoschweiz.admin.ch/klima/klima-der-schweiz/rekorde-und-extreme/extremwertanalysen.html
Meteo Bulletins: https://www.meteoschweiz.admin.ch/service-und-publikationen/publikationen.html#order=date-desc&page=1&pageGroup=publication&tenant=mchweb
Homogeneous series / homogene Messreihen: https://www.meteoschweiz.admin.ch/service-und-publikationen/applikationen/ext/climate-tables-homogenized.html#https%3A%2F%2Fservice.meteoswiss.ch%2Fproductbrowser%2FproductDisplay%2Fclimate-tables-homogenized%3Flang=de&cg1.location=ALT&cg1.productName=climate-reports-tables-homogenized
Temperature & precipitation mean values: https://www.meteoschweiz.admin.ch/klima/grundlagen-fuer-die-klimaanalyse-daten-und-methoden/schweizer-temperatur-und-niederschlagsmittel.html
Monthly and annual gridded maps: https://www.meteoschweiz.admin.ch/klima/klima-der-schweiz/monats-und-jahresgitterkarten.html
Drought indicators: https://www.meteoschweiz.admin.ch/service-und-publikationen/applikationen/ext/climate-drought-series.html
Climate norm maps (Normwerte-Karten): https://www.meteoschweiz.admin.ch/service-und-publikationen/applikationen/ext/climate-norm-maps-public.html#https%3A%2F%2Fservice.meteoswiss.ch%2Fproductbrowser%2FproductDisplay%2Fclimate-norm-maps-public%3Flang=de&cg1.parameter=HotDays&cg1.normalPeriod=1961-1990&cg1.productName=climate-indicators-maps-norm
Climate change data at stations, CH2025: https://www.meteoswiss.admin.ch/climate/climate-change/swiss-climate-scenarios/reports-data-and-graphs-of-climate-change-scenarios/climate-ch2025-datasets.html