St Moritz

Planning an active holiday or a stroll through Saint Moritz? Here you will find the latest weather information, including up-to-date forecasts and clear charts.

Saint Moritz features a classic high-altitude Alpine climate, characterized by long, snowy winters and short, cool summers. Due to its high elevation, the air here is always fresh and thin. Travelers should keep in mind that the weather in this region is significantly harsher than in the lowlands of Switzerland, so warm clothes will be useful in your suitcase at any time of year.

Winter here is authentic and frosty: average temperatures from December to February stay firmly below freezing, often dropping to -10°C and lower, creating ideal conditions for skiing and maintaining snow cover. Summer in Saint Moritz is a wonderful escape from the heat. Even in the warmest months, July and August, the average temperature is only around +10°C, and daytime highs rarely exceed +15°C, providing a pleasant chill.

A key feature of the local climate is the high probability of precipitation, especially in the spring and summer. According to statistics, May and June can be quite overcast, with a high number of rainy days (over 20 per month). Despite its reputation as a sunny resort, mountain weather is changeable, and clear skies can quickly turn into clouds or snowfall, so it is best to be flexible when planning outings.

The climate of Saint Moritz is entirely dictated by its high-altitude Alpine location, resulting in cool weather for most of the year. The coldest month is traditionally January, with an average temperature of about -10.1°C, while nighttime lows often drop to a harsh -14.0°C. Winter here is authentic, frosty, and long: consistent sub-zero temperatures are observed from November to March, creating ideal conditions for skiing and maintaining a thick snow cover.

Summer in Saint Moritz can be described as fresh and moderately cool, which is a real salvation for those who dislike exhausting heat. The warmest months are July and August, when the daytime maximum reaches a comfortable +15.0°C...+15.3°C. However, even at the height of the summer season, do not expect heatwaves: the average temperature stays around +10°C, and nights remain truly cold (about +5°C), so warm clothes are a must even in July.

The region is characterized by significant diurnal temperature fluctuations typical of mountainous areas. The difference between the daytime maximum and nighttime minimum is often 7–9 degrees, so a feeling of warmth can quickly turn into an evening chill. Spring arrives quite late: even in May, the average temperature barely exceeds +3°C, and autumn sets in rapidly, with figures returning to +6°C as early as September.

Precipitation in Saint Moritz is distributed rather unevenly throughout the year, and its nature depends directly on the season and air temperature. Since the resort is located high in the mountains, the winter period here is long and snowy. From November to April, when average temperatures stay below zero, precipitation falls mainly as snow. The "driest" months are January and February, when the fewest days with precipitation are recorded (about 10–12), creating ideal conditions for winter sports.

As the weather warms up, the frequency of precipitation increases significantly. The wettest time of the year is late spring and early summer: in May, statistics show a record 24 days with precipitation, and in June and July, around 20–21 days. During this time, when temperatures rise to +10°C...+15°C, rain replaces the snowfalls. Travelers planning a summer trip should be prepared for frequent weather changes and regular rain.

In autumn, the intensity of precipitation gradually decreases. In September and October, the number of rainy days drops to 13–15 per month, making the start of autumn a pleasant time for walks before the first serious cold arrives. By November, the temperature regime changes again, and rain turns into steady snowfall, preparing the slopes for a new season.

Saint Moritz is a high-altitude resort, so warm clothing is necessary almost year-round. In winter, when the average temperature hovers around -10°C and can drop to -14°C at night, you will definitely need high-quality thermal underwear, wool sweaters, and a windproof down jacket or ski suit. Don't forget warm accessories: a hat, scarf, and gloves, as the frosty mountain air can be quite harsh. The layering principle will help you stay comfortable both on the snowy slopes and while walking around town.

Even if you plan to visit in summer, do not count on intense heat: the average daytime temperature in July and August rarely exceeds 15°C, and nights remain truly cold (around 5°C). Be sure to bring a fleece jacket, a windbreaker, or a light jacket for evening strolls. Given that precipitation is frequent (especially in May and the summer months, with up to 20–24 rainy days), your suitcase should have room for a compact umbrella or a raincoat, as well as waterproof shoes.

Regardless of the season, the mountain sun is very intense, so sunglasses and high-SPF sunscreen are essentials to protect your skin and eyes from UV rays. For exploring Switzerland's picturesque surroundings, choose comfortable trekking boots with non-slip soles. Since Saint Moritz is famous for its elegance, it's also worth packing a smart casual outfit for visiting restaurants or social events after an active day.