St. Moritz weather
11-year climate averages (2015–2025), month by month
St. Moritz in september
Current month averages, based on 11 complete years of records (2015–2025). Read the full guide →
St. Moritz sits at 46°29′N 9°50′E in Switzerland, in Europe. Its climate profile is shaped by these coordinates — and the 11 complete years of records below (2015–2025) reveal exactly how each season feels on the ground.
Below, you'll find monthly averages for temperature, rainfall and sunshine, drawn from the Open-Meteo Archive. Every month links to a full guide with what to pack, where to stay, and when to arrive.
The year in weather
St. Moritz weather by month
Pick a month for the full climate guide — temperature, rainfall, sunshine, packing tips and hotel deals for St. Moritz.
Places that feel like St. Moritz in september
St. Moritz weather — FAQ
Q01When does St. Moritz reach its peak summer heat?
When does St. Moritz reach its peak summer heat?
July runs the highest averages in St. Moritz, with typical daytime highs of 17°C (63°F). Plan around midday and consider accommodation with reliable cooling.
Q02When is winter at its deepest in St. Moritz?
When is winter at its deepest in St. Moritz?
January brings the lowest averages, with daytime highs near -3°C (27°F). Layer up and expect shorter daylight hours if you plan sightseeing.
Q03What is the wettest time of year in St. Moritz?
What is the wettest time of year in St. Moritz?
October typically records the highest monthly rainfall — around 134mm on average. Plan indoor alternatives and pack proper rain gear if visiting this month.
Q04What kind of climate does St. Moritz have?
What kind of climate does St. Moritz have?
St. Moritz, Switzerland has cool summers, freezing winters, moderate seasonal rainfall. You can read the detailed month-by-month breakdown on this page.