Last updated: August 27, 2025
October in St. Moritz, Switzerland, offers a captivating blend of crisp mountain air and changing seasons. With maximum temperatures reaching 14°C (57°F) and average daily highs around 2°C (36°F), this month showcases the onset of colder weather, with overnight lows plunging to a chilly -10°C (14°F). Visitors should prepare for 148 mm (5.8 in) of precipitation over approximately 11 days, contributing to the lush autumn landscape. The high humidity levels at 90% create a misty atmosphere, adding to the enchanting beauty of this alpine retreat, making October a unique time to experience St. Moritz's picturesque charm amid fall's vibrant colors.
As October settles in St. Moritz, Switzerland, the temperatures start to dip significantly, signaling the gradual transition to winter. With minimums around -10°C (14°F) and averages hovering at 2°C (36°F), the crisp autumn air begins to blanket the region. Daytime highs reach a mild 14°C (57°F), offering fleeting moments of warmth amidst the encroaching chill. This month sees a noteworthy shift from the warmer September days, hinting at the snowy landscapes that will soon envelop the Swiss Alps. The beauty of St. Moritz during October is enhanced by its cooling temperatures, inviting travelers to enjoy the vibrant fall foliage against a backdrop of majestic mountains.
October in St. Moritz showcases a notable transition in weather patterns, with precipitation totals averaging around 148 mm (5.8 in), making it one of the wetter months of the year. This month typically sees about 11 days of rain, marking a slight decrease from the 15 rainy days in September. The surge in precipitation from the summer months, which peak in August, often signifies the onset of winter conditions, with the landscape preparing for snowfall. Interestingly, while October's rain is substantial, it marks a dip compared to the precipitation levels reached during the vibrant late summer, hinting at the changing seasons and setting the stage for the snows of November and December ahead.
In October, St. Moritz experiences a noticeable rise in humidity, reaching 90%, which is on par with the dampness felt during the winter months of December. This uptick follows a trend of fluctuating humidity levels throughout the year, with the late summer months hovering around 80%-83%. Interestingly, as the year transitions into autumn, humidity levels not only increase again in October but also remain elevated into November at 88%. This resurgence signals the onset of colder weather, underscoring the shift from the relatively dry conditions experienced in late spring and summer. Overall, St. Moritz's humidity patterns reveal a distinctive rhythm, elevating in the first half of the year with peaks during the colder months, enhancing the region's crisp mountain climate.
As the year progresses in St. Moritz, Switzerland, the UV Index experiences a notable fluctuation, reflecting the changing seasons and altitude of this beautiful alpine region. In October, the UV Index stands at 6, categorized as high, which offers a significant increase from the more sheltered winter months, but is lower than the summer peaks of 10. To protect your skin during this time, a burn time of 25 minutes underscores the need for awareness. Notably, the months preceding October, particularly May through August, display a trend of very high UV levels, prompting visitors to be vigilant about sun safety. As autumn settles in and the UV Index begins to taper off towards winter, understanding these trends is essential for enjoying the outdoors while minimizing risk. For more detailed information on UV exposure, check out this resource: St. Moritz UV Index.
UV Risk Categories
As autumn unfolds, October in St. Moritz offers a delightful blend of warmth and crispness, with 276 hours of sunshine that invite visitors to savor the breathtaking alpine scenery. Following the sun-drenched heights of summer, where July boasts an impressive 410 hours, October’s sunlight begins to taper, yet remains generous compared to the chillier months ahead. The month is a transitional gem, bridging the golden hues of fall and the impending winter wonderland, where the vibrant autumn foliage meets the first whispers of snow. With daylight hours steadily decreasing from the peak of summer, the cheerful moments under October’s sun remind us of nature’s stunning cycles, making it a perfect time for exploration and reflection in this Swiss paradise.
As October rolls into St. Moritz, the likelihood of sunny weather stands at 35%, aligning closely with the spring vibes of April and the cheer of December. This month signals a gentle transition, as the sun peeks through the clouds more frequently compared to the late summer months. Although October's sunshine chances are slightly higher than September's 26%, they still reflect a moderated autumnal charm, providing just enough brightness to enjoy the stunning alpine vistas. While not the sunniest month, October offers a delightful balance of crisp air and occasional sunshine, making it a picturesque time for both outdoor adventures and serene relaxation in this beautiful Swiss destination.
As autumn settles in St. Moritz, October brings a gentle transition in daylight, offering around 10 hours of sunlight—a noticeable drop from the summer's peak of 15 hours in June, July, and August. This decline follows a gradual pattern established in the previous months, where daylight steadily increased from winter’s low of 9 hours in January to a vibrant 15 hours by May. As October progresses, the days shorten, hinting at the approaching winter months, where daylight diminishes further, touching 9 hours in November and dwindling to just 8 hours in December. This rhythm of daylight serves as a reminder of the season’s shift, enveloping the enchanting alpine scenery in a softer, autumnal glow.
As October arrives in St. Moritz, the winds begin to dance at an average speed of 1.6 m/s (4 mph), mirroring the consistent breezes of the preceding months. This slight uptick from September's calm whispers signals a vibrant shift as autumn colors take center stage, inviting both adventurers and nature lovers to revel in the crisp air. Interestingly, the wind speed maintains a steady rhythm, hovering around 4 mph since the spring, illustrating a remarkable stability that characterizes this enchanting alpine retreat. With the transition from summer to autumn, October's wind carries a promise of change and anticipation for the winter season ahead, creating an atmosphere alive with possibility.
Weather in St. Moritz varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in St. Moritz, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present distinctly different weather patterns in terms of temperature and precipitation. In October, temperatures range from a minimum of -10°C (14°F) to a maximum of 14°C (57°F), with an average of 2°C (36°F) and 148 mm (5.8 in) of precipitation spread over 11 days. This month experiences high humidity at 90%, providing a damp chill in the air. In contrast, January sees much colder conditions, with temperatures plummeting to a minimum of -27°C (-17°F) and an average of -11°C (12°F). Despite a lower precipitation total of 75 mm (2.9 in) over 10 days, January's humidity rises slightly to 92%, contributing to the biting cold. For more details, you can check St. Moritz weather in January.
October and February present stark contrasts in weather. October enjoys milder temperatures, with a minimum of -10°C (14°F) and an average of 2°C (36°F), while February plunges to a frigid minimum of -28°C (-18°F) and a chilly average of -8°C (18°F). Precipitation is more abundant in October at 148 mm (5.8 in), compared to February's 59 mm (2.3 in), though both months experience precipitation on 11 days. Humidity remains quite similar, with October at 90% and February slightly lower at 89%. The temperate conditions of October make it a more inviting month, while February's cold can be felt with greater intensity. For more detailed insights about February weather, you can refer to St. Moritz weather in February.
October and March present distinctly different weather patterns, with October showcasing a milder climate than the chillier March. In October, the temperatures range from a minimum of -10°C (14°F) to a comfortable maximum of 14°C (57°F), while averaging around 2°C (36°F). The month also experiences considerable precipitation, totaling 148 mm (5.8 in) over 11 days, accompanied by high humidity at 90%. In contrast, March is generally colder, with temperatures dipping as low as -26°C (-14°F) and only reaching a maximum of 11°C (52°F), averaging -5°C (23°F). The precipitation in March is lower at 90 mm (3.5 in), spread over 13 days, and humidity remains slightly lower at 87%. For detailed insights on March's weather, you can check out St. Moritz weather in March.
When comparing the weather in October and April, we can see distinct differences in temperature and precipitation patterns. October experiences a milder average temperature of 2°C (36°F), with maximum highs reaching up to 14°C (57°F) and a minimum of -10°C (14°F). This month is characterized by higher humidity at 90% and more significant rainfall, totaling 148 mm (5.8 in) over 11 days. In contrast, April tends to be colder on average, with temperatures ranging from a minimum of -19°C (-1°F) to a maximum of 12°C (54°F), and an average of -1°C (31°F). Precipitation in April is lower at 99 mm (3.9 in) over 12 days, accompanied by a humidity level of 84%. For more detailed information, you can visit St. Moritz weather in April.
October and May present contrasting yet similarly dynamic weather patterns. In October, temperatures range from a chilly -10°C (14°F) to a mild 14°C (57°F), with an average of 2°C (36°F). The month sees considerable precipitation of 148 mm (5.8 in) over 11 days, combined with a high humidity level of 90%. Conversely, May experiences slightly lower minimum temperatures at -13°C (8°F) but a warmer maximum of 18°C (65°F), averaging around 3°C (38°F). Notably, May also has a very similar precipitation level at 150 mm (5.9 in), though spread over 22 days, and a more manageable humidity of 80%. For a detailed look into May's climate, check out St. Moritz weather in May.
When comparing the weather in October and June, notable differences emerge. October features much colder temperatures, with a minimum of -10°C (14°F) and an average of just 2°C (36°F), while June enjoys milder temperatures ranging from a minimum of -2°C (28°F) to an average of 9°C (49°F) and a maximum of 25°C (77°F). Precipitation is also significant in both months; October sees around 148 mm (5.8 in) over 11 days, whereas June receives slightly more, at 159 mm (6.3 in), but spread across 19 days. Humidity levels are high in both months, with October at 90% and June at 82%. For more detailed information, check out St. Moritz weather in June.
In October, temperatures in St. Moritz drop significantly, with nighttime lows averaging around -10°C (14°F) and daytime highs reaching only up to 14°C (57°F). This month is characterized by high humidity at 90% and precipitation readings of 148 mm (5.8 in) over approximately 11 days. In contrast, July enjoys milder weather, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 23°C (73°F) and an average of 10°C (51°F). Although July sees slightly more rainfall at 159 mm (6.3 in) across about 21 days, the humidity is comparatively lower at 83%. For more details about the weather in July, check out St. Moritz weather in July.
In comparing the weather of October and August, October tends to be significantly colder, with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 14°C (57°F) and an average of just 2°C (36°F). In contrast, August enjoys milder temperatures, with a minimum of 0°C (33°F), an average of 10°C (51°F), and a maximum reaching 21°C (70°F). Additionally, October experiences more pronounced precipitation, averaging 148 mm (5.8 in) over 11 days, while August has even higher rainfall totals of 195 mm (7.7 in) but spread over 21 days. The humidity in October is also notably higher at 90%, compared to August's 80%. For a closer look at the weather patterns in August, you can visit St. Moritz weather in August.
In comparing the weather between September and October, October generally exhibits slightly milder average temperatures, with a range from a minimum of -10°C (14°F) to a maximum of 14°C (57°F). In contrast, September experiences cooler conditions, with a minimum of -12°C (11°F) and a maximum of 18°C (65°F). Additionally, October sees increased precipitation, totaling 148 mm (5.8 in) over 11 days, compared to September's 126 mm (5.0 in) over 15 days. The humidity also rises in October to a notable 90%, compared to 83% in September. For more insights into September's climate, you can visit St. Moritz weather in September.
October and November present a notable shift in weather conditions. October experiences a milder average temperature of around 2°C (36°F), with a maximum reaching up to 14°C (57°F). In contrast, November sees a steeper decline, with average temperatures plummeting to -4°C (25°F) and highs reaching only 8°C (47°F). Precipitation levels in October are slightly higher at 148 mm (5.8 in), occurring over 11 days, while November sees a similar total of 132 mm (5.2 in) but spread across 14 days. Additionally, humidity levels remain quite high in both months, at 90% for October and 88% for November. For more detailed weather insights, you can check St. Moritz weather in November.
In October, St. Moritz experiences a more moderate climate, with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 14°C (57°F). The average temperature sits at 2°C (36°F), and the month receives about 148 mm (5.8 in) of precipitation over roughly 11 days, maintaining a high humidity level of 90%. In contrast, December brings significantly colder weather, with temperatures dropping to a minimum of -26°C (-14°F) and an average of -9°C (16°F). The maximum temperature barely reaches 2°C (37°F), and while precipitation decreases slightly to 125 mm (4.9 in), it occurs over 15 days, also with high humidity at 90%. This notable drop in temperatures and slight increase in precipitation days highlight the stark differences between the two months. For more details on winter conditions, you can visit St. Moritz weather in December.
October in St. Moritz presents a striking contrast to the warmer months, as the landscape transforms under the shadow of cooler temperatures and increased moisture. With an average temperature of just 2°C, the crisp air ushers in the heart of autumn, inviting visitors to bask in the vibrant colors of the season. This month often sees 11 days of precipitation, making it one of the wetter periods, while humidity levels soar to 90%, adding a chill that lingers in the air. For those planning a trip, October offers a unique blend of serene beauty and a sense of change, making it an ideal time to experience the quieter side of St. Moritz. To learn more about the seasonal shifts in this stunning Swiss retreat, visit the St. Moritz Climate page.