Last updated: February 26, 2025
October in Chamonix-Mont-Blanc showcases a striking blend of autumn beauty and brisk weather, with maximum temperatures reaching a pleasant 18°C (65°F) and averaging around 5°C (42°F). As the month progresses, colder nights can dip to a chillier -8°C (18°F). With 133 mm (5.3 in) of precipitation over approximately 13 days, the region experiences a mix of rain and possibly the first snowfalls, enhancing the picturesque views of the surrounding peaks. Coupled with a high humidity of 89%, October presents an exhilarating atmosphere for outdoor enthusiasts and nature lovers alike, offering stunning vistas and vibrant fall foliage.
In Chamonix-Mont-Blanc during the month of October, temperatures begin to drop noticeably, signaling the transition from autumn to winter. The average temperature sits at a brisk 5°C (42°F), with nighttime lows dipping to -8°C (18°F). This chillier climate contrasts starkly with the balmy temperatures experienced in the summer months, where it peaked at around 28°C (83°F) in June. By October, the maximum temperature reaches a mild 18°C (65°F), providing a cozy ambiance for visitors. As the days grow shorter and foliage transforms into vibrant hues, October serves as a golden time for those seeking breathtaking scenery against the crisp mountain air.
In October, Chamonix-Mont-Blanc experiences a notable transition in weather as the region shifts deeper into autumn. With 133 mm (5.3 in) of precipitation falling over 13 days, the month is characterized by a moderate rain pattern, slightly higher than in September but reflective of the tapering off from the peak summer months. Compared to the wetter months of May and June, October's precipitation signifies a decline, yet it's still a vital time for replenishing water sources before the winter snow arrives. This blend of consistent rainfall and diminishing precipitation days highlights October as a pivotal month in the transition to the winter season, inviting adventure seekers and nature lovers to witness Chamonix's stunning autumn hues against a backdrop of shifting weather.
As October rolls into Chamonix-Mont-Blanc, the humidity levels rise to 89%, marking a notable increase from the preceding month. This shift is part of a broader trend in which autumn months experience higher humidity compared to the summer's drier conditions, peaking slightly above the levels seen in January and November. Following the warm, dry spell of summer, which saw the lowest humidity at 63% in August, October's dampness creates a refreshing contrast, undoubtedly contributing to the lush landscapes of the Alps as they prepare for winter. The gradual rise in moisture from September's 73% to October's 89% suggests the onset of the cooler, rainier days typical of late fall, emphasizing the seasonal transition in this picturesque region.
As the vibrant summer months fade into autumn, October in Chamonix-Mont-Blanc sees a notable shift in UV exposure. With a UV Index of 5, the exposure category returns to a moderate level, allowing for a safer enjoyment of the breathtaking alpine scenery. This marks a decrease from the intense summer peaks, where July and June boasted UV Index values of 10, necessitating vigilant sun protection due to burn times as short as 15 minutes. Interestingly, the moderate burn time of 30 minutes in October mirrors that of January and February, highlighting a gradual cooling trend as the region transitions into winter. This seasonal ebb and flow of UV intensity underscores the importance of adapting sun safety measures throughout the year. For more details on the UV levels throughout the month, explore the Chamonix-Mont-Blanc UV Index.
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As October unfolds in Chamonix-Mont-Blanc, it brings a delightful transition into autumn with 291 hours of sunshine. This month reflects a notable dip from the sun-drenched summer peak in July, which boasts 422 hours, yet it still maintains a vibrant luminosity compared to the earlier months of the year. The trend of decreasing daylight hours is evident as October follows a radiant September with 331 hours, but the golden hues of fall ensure that the landscape remains captivating. With sunlight gradually waning toward winter, October serves as a picturesque reminder of nature's cycle, beautifully blending the warmth of summer with the crispness of the approaching colder months.
In Chamonix-Mont-Blanc during October, the likelihood of sunny weather significantly increases, boasting a 45% chance of sunshine—the highest for the year. This trend marks a notable rise compared to earlier months, such as May and June, where sunny days hovered around 26% and 29% respectively. As autumn sets in, October stands out as a favorable time for outdoor enthusiasts, bridging the gap between summer’s warmth and the onset of winter’s chill. This seasonal shift not only brightens the landscape but also offers visitors an ideal opportunity to enjoy the breathtaking scenery under clearer skies.
As October arrives in Chamonix-Mont-Blanc, daylight begins to wane after the sunlit highs of summer. The month offers around 10 hours of daylight, marking a notable decline from the vibrant 15 hours experienced in June and July. This gradual decrease, evident from the 14 hours of May to the 12 hours in September, signals the transition into the shorter days of fall and winter. As the landscape shifts with autumn's colorful foliage, outdoor enthusiasts can still savor crisp mountain air and beautiful scenery, though it's a gentle reminder that the long, sun-soaked days of summer are slipping away.
As October sweeps into Chamonix-Mont-Blanc, the wind makes its presence felt with an average speed of 1.3 m/s (3 mph), echoing the tranquil breezes of late summer. This month maintains a steady wind pattern, similar to both September and November, where the gentle currents help usher in the crispness of autumn. A slight dip is observed in the earlier months, with speeds dropping to 1.0 m/s (2 mph) in September, but October’s winds pick up momentum once again, mirroring the consistent nature of the region as it transitions into the colder seasons. As the foliage transforms and the mountains begin to don their winter coats, these gentle, cool winds offer a refreshing reminder of nature's eternally shifting rhythm.
The weather in Chamonix-Mont-Blanc changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Chamonix-Mont-Blanc and find detailed weather information for every month.
In comparing the weather of October and January, October experiences milder temperatures with a minimum of -8°C (18°F) and an average of 5°C (42°F), peaking at 18°C (65°F). This month also sees a significant amount of precipitation, totaling 133 mm (5.3 in) over 13 days, coupled with a humidity level of 89%. In contrast, January brings much colder conditions, featuring minimum temperatures dropping to -25°C (-13°F) and an average of -8°C (19°F), with a maximum of only 6°C (44°F). January is also wetter, with 171 mm (6.7 in) of precipitation falling over just 10 days and slightly higher humidity at 91%. For more detailed insights on January weather, you can visit Chamonix-Mont-Blanc weather in January.
October and February present strikingly different weather conditions. In October, temperatures fluctuate between a minimum of -8°C (18°F) and a maximum of 18°C (65°F), with an average temperature of 5°C (42°F). The month experiences around 133 mm (5.3 in) of precipitation over 13 days, coupled with high humidity levels at 89%. In contrast, February is considerably colder, with temperatures ranging from a minimum of -21°C (-5°F) to a maximum of 11°C (52°F), and an average of -4°C (26°F). February sees slightly more precipitation at 141 mm (5.5 in) over just 11 days, while humidity remains relatively stable at 87%. For more insights into the winter climate, you can check Chamonix-Mont-Blanc weather in February.
In comparing the weather between October and March, October generally presents a milder climate with average temperatures around 5°C (42°F) and a maximum of 18°C (65°F), while March is notably colder with an average of -1°C (31°F) and a maximum of 14°C (58°F). October experiences around 133 mm (5.3 in) of precipitation over 13 days, indicating a damp atmosphere with high humidity at 89%. Conversely, March sees slightly higher precipitation at 175 mm (6.9 in) across 15 days, accompanied by lower humidity at 84%. The temperature range in March highlights the transition toward the end of winter, making it considerably chillier than the relatively warmer and wetter October. For more detailed insights on March weather conditions, you can refer to Chamonix-Mont-Blanc weather in March.
When comparing the weather in October and April, some notable differences emerge. October enjoys a milder temperature range, with averages of 5°C (42°F) and a maximum of 18°C (65°F), while April has a lower average of 3°C (38°F) and a minimum that can drop to -16°C (3°F). Both months experience approximately 13 days of precipitation, but October sees significantly more rainfall at 133 mm (5.3 in) compared to April's 84 mm (3.3 in). Humidity levels are relatively similar, with October at 89% and April slightly lower at 83%. For those interested in specific weather conditions, you can explore more details here: Chamonix-Mont-Blanc weather in April.
In comparing October and May, October's temperatures are generally milder, with an average of 5°C (42°F) compared to May's average of 7°C (45°F). However, May experiences a higher maximum temperature, reaching up to 23°C (74°F), while October's maximum is limited to 18°C (65°F). Precipitation levels are notably higher in May, totaling 224 mm (8.8 in) over 21 days, versus October's 133 mm (5.3 in) across 13 days, indicating a wetter month overall. Furthermore, May has lower humidity at 78% compared to October's 89%, offering a slightly more comfortable feel despite the increased rainfall. For more insights on May weather, you can refer to Chamonix-Mont-Blanc weather in May.
When comparing the weather in October and June, notable differences emerge in temperature and precipitation patterns. October typically experiences cooler temperatures, with a minimum of -8°C (18°F), an average of 5°C (42°F), and a maximum of 18°C (65°F). In contrast, June boasts milder conditions, with temperatures ranging from a minimum of -3°C (28°F) to a maximum of 28°C (83°F) and an average of 12°C (54°F). Additionally, June tends to have more precipitation, with a total of 167 mm (6.6 in) over about 20 days, compared to October's 133 mm (5.3 in) across 13 days. Humidity levels are higher in October at 89%, while June experiences a lower humidity of 75%. For a detailed look at the weather conditions, you can check Chamonix-Mont-Blanc weather in June.
October weather in Chamonix-Mont-Blanc features cooler temperatures, with a minimum of -8°C (18°F) and an average of 5°C (42°F), compared to the warmer July, which sees a minimum of 2°C (36°F) and an average of 14°C (57°F). October tends to be significantly wetter, with 133 mm (5.3 in) of precipitation over 13 days, while July has higher overall precipitation at 162 mm (6.4 in) across 18 days. Additionally, October is marked by higher humidity levels at 89%, in contrast to July's more comfortable 72%. For a detailed look at July's weather conditions, check out Chamonix-Mont-Blanc weather in July.
October and August present contrasting weather conditions, particularly in temperature and humidity. In October, temperatures range from a chilly minimum of -8°C (18°F) to a mild maximum of 18°C (65°F), averaging around 5°C (42°F). In contrast, August features a much warmer climate, with temperatures ranging from 2°C (36°F) to a maximum of 25°C (77°F), averaging 13°C (56°F). Additionally, October is significantly more humid, with an average humidity of 89%, compared to August’s 63%. While both months experience substantial precipitation—133 mm (5.3 in) in October over 13 days and 149 mm (5.9 in) over 17 days in August—October tends to feel much cooler and wetter overall. For more detailed weather information, you can check Chamonix-Mont-Blanc weather in August.
In comparing the weather between September and October, October experiences a notable drop in average temperature, with highs reaching only 18°C (65°F) compared to September's peak of 21°C (71°F). While both months share a minimum temperature of -8°C, the overall average in October is lower at 5°C (42°F) versus September's 10°C (49°F). Additionally, October sees increased precipitation, totaling 133 mm (5.3 in) over 13 rainy days, while September has slightly less rain at 109 mm (4.3 in) spread over 16 days. This leads to higher humidity in October at 89%, compared to September's 73%. For more detailed information about weather patterns in September, you can check Chamonix-Mont-Blanc weather in September.
October weather in Chamonix-Mont-Blanc features milder temperatures with a minimum of -8°C (18°F) and an average of 5°C (42°F), peaking at a comfortable 18°C (65°F). With 133 mm (5.3 in) of precipitation over 13 days, the month is characterized by high humidity at 89%. In contrast, November brings a notable drop in temperatures, with a minimum of -18°C (-1°F) and an average of -1°C (30°F), while the maximum still reaches 15°C (60°F). Precipitation slightly decreases to 120 mm (4.7 in) over the same number of days, and humidity remains high at 90%. For more details on November weather, visit Chamonix-Mont-Blanc weather in November.
October offers a milder climate with temperatures ranging from a minimum of -8°C (18°F) to a maximum of 18°C (65°F) and an average of 5°C (42°F). The month sees approximately 133 mm (5.3 in) of precipitation over 13 days, accompanied by high humidity levels at 89%. In contrast, December brings colder conditions, with temperatures dropping to a minimum of -23°C (-8°F) and an average of -6°C (22°F), peaking at 8°C (46°F). This month experiences significantly more precipitation, totaling 295 mm (11.6 in) across 19 days, with humidity slightly higher at 90%. For more detailed information, check Chamonix-Mont-Blanc weather in December.
As October settles into Chamonix-Mont-Blanc, the weather takes a notable turn, marked by cooler temperatures and an increase in precipitation compared to previous months. The crisp air and heightened humidity create a refreshing ambiance, while the stunning autumn colors blanket the landscape. With an average temperature hovering around 5°C, visitors can expect a mix of brisk days and chilly nights, inviting cozy evenings by the fire. Rainfall becomes more frequent, with about half the month experiencing precipitation, adding a touch of magic to the region but also a necessity for planning outdoor activities. For those interested in understanding how October fits into the larger picture of the area’s weather patterns, be sure to explore Chamonix-Mont-Blanc Climate.