St. Moritz weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Poor
Best time to visit: July – August
Best for skiing: November – April
What is the weather like in St. Moritz in May?
In May, St. Moritz is cold: daytime highs average 9 °C, and nights cool down to about 1 °C. Expect around 5 hours of sunshine a day. It rains often – on about 20 days, adding up to 151 mm. Snow falls on about 6 days. All in all, May is not an ideal month for a holiday in St. Moritz.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 14 h 58 min05:48 – 20:46
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 7 km/haverage daily peak
- Cloud cover
- 72 %on average
- Hot days
- 0 days30 °C or more
- Snow days
- 6 days1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Zurich
How the score comes together
- Temperatureweight 50 %33 %
- Sunshineweight 20 %38 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.
What to pack in May
- Sunscreen
- Sunglasses & sun hat
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
St. Moritz in May: quick answers
Is St. Moritz hot in May?
No. In May, St. Moritz is cold: daytime highs average 9 °C and nights drop to about 1 °C.
Does it rain much in St. Moritz in May?
It rains often – on about 20 days, adding up to 151 mm.
St. Moritz month by month
The whole year in St. MoritzAll destinations: SwitzerlandWhere to go in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)