October Weather in Aosta, Italy

Last updated: March 24, 2025

In October, Aosta, Italy, experiences a cool and moist climate, with temperatures ranging from a maximum of 15°C (60°F) to a crisp minimum of -8°C (17°F). The average temperature hovers around 4°C (39°F), creating an invigorating atmosphere for visitors. With 124 mm (4.9 in) of rainfall over approximately 13 days, humidity levels are notably high at 89%, contributing to the region's lush autumn scenery. This month offers a unique blend of vibrant fall colors and the charm of early winter, making it an enchanting time to explore Aosta's rich history and stunning landscapes.

October Temperature in Aosta

In October, Aosta experiences a significant transition as it shifts from the warmth of summer towards the chill of winter. With minimum temperatures hovering around -8°C (17°F) and maximums reaching 15°C (60°F), the region begins to feel the bite of colder air. The average temperature settles at 4°C (39°F), revealing the distinct crispness of autumn. This drop from September's mild conditions marks the start of the colder season, prompting a beautiful display of fall foliage against the stunning backdrop of the surrounding Alps. As days become shorter and evenings chillier, Aosta invites visitors to embrace its cozy charm, setting the stage for winter activities that lie just ahead.

October Weather in Aosta: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Aosta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec152125324050545447382618
Data source: Temperature data for Aosta generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Aosta

In October, Aosta experiences a noticeable increase in precipitation, receiving an average of 124 mm (4.9 inches) over the course of 13 days. This marks a significant rise from the drier September, where only 64 mm (2.5 inches) fell. The trend of escalating precipitation continues into the winter months, with November's average slightly dropping to 117 mm (4.6 inches) but remaining high compared to the earlier months of the year. This surge in rainfall during fall highlights Aosta's transition into its wetter season, setting the stage for the heavy snows that characterize the winter ahead.

October Precipitation Trends in Aosta

The chart displays monthly precipitation patterns in Aosta, with values for each month alongside October's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec11479106831441049810165124117165
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Aosta

In October, Aosta, Italy, experiences a notable shift in humidity, rising to 89% as summer gives way to autumn. This increase reflects a general trend of higher humidity levels that typically characterizes the transition into colder months. Following a relatively dry August with just 63% humidity, the air becomes more saturated again in September at 73%, and then significantly jumps in October. This pattern continues into the winter, as November and December hover around 90%. Such elevated humidity can create a cozy atmosphere, but it also means that Aosta's residents and visitors will need to prepare for the damp chill that comes with the changing seasons.

October Average Humidity in Aosta

This chart illustrates the average monthly humidity levels in Aosta, with October's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how October's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%87%84%83%78%75%72%63%73%89%91%90%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Aosta

In October, Aosta experiences a notable shift in its UV Index, with a reading of 6, categorized as high. This marks a decrease from the intense summer months when the index peaked at 11, indicating an extreme exposure risk. As temperatures begin to cool, the burn time extends to approximately 25 minutes, allowing for a bit more flexibility when enjoying outdoor activities. Overall, the trend across the year shows that while the UV Index is generally high from March through September, it starts to taper off in the fall, making October an ideal month for those looking to bask in milder sunshine responsibly. For more detailed insights, check out Aosta UV Index.

Maximum UV Index Levels in Aosta for October

The chart shows the monthly maximum UV Index (UVI) for Aosta in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111108632
Data source: Aosta October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

October Sunshine in Aosta

As October drapes its golden hues over the majestic Aosta Valley, the region basks in a generous 290 hours of sunshine, a delightful transition from the sun-drenched days of summer. This month witnesses a gradual decline in daylight as it trades the vibrant 424 hours of July for the cooler, crisp atmosphere of autumn. Yet, unlike the stark drop that follows in November with just 215 hours, October still enjoys a comfortable share of sunshine, maintaining a warm embrace before winter's chill sets in. The consistent pattern of bright days from April through September reinforces Aosta's appeal for those seeking a sunlit escape, making October a perfect time to savor the last whispers of warmth amidst the breathtaking Alpine backdrop.

Monthly Sunshine Duration in Aosta: October Highlighted

The October sunshine duration represents the total number of hours Aosta experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec180h240h309h340h368h398h424h393h329h290h215h212h
Data source: Aosta October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Aosta During October

In Aosta, Italy, October offers a 43% chance of sunny weather, making it one of the more promising months for sunshine as autumn unfolds. This likelihood parallels the sunniness experienced in April and November, suggesting a trend of fluctuating sunshine during the transitional seasons. Interestingly, while the summer months of July and August showcase higher sunshine percentages at 35% and 47% respectively, October maintains a healthy amount of sunny days, allowing visitors to enjoy the breathtaking fall foliage against a backdrop of clear skies. Overall, October stands out as a month where the crisp air and colorful landscapes may just be complemented by delightful sunny spells.

Percentage of Sunny Days in October in Aosta

The chart illustrates the percentage of sunny days in Aosta throughout the year, with October highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Aosta experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%38%47%43%32%27%35%47%27%43%30%40%
Data source: Aosta October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Aosta in October

In Aosta, Italy, October marks a distinct transition as daylight gradually diminishes, offering about 10 hours of sunlight. This encapsulates a notable shift from the summer months, where June and July basked in the longest days at 15 hours. As the year progresses into autumn, daylight starts to decline from 14 hours in August, reaching its autumnal peak in September with 12 hours. By October, the shorter days remind residents and visitors alike of the impending winter season, closing the chapter of longer daylight that characterizes the surrounding months, and laying the groundwork for the shorter days of November and December. This cyclical dance of daylight underscores the region's seasonal rhythms, inviting a reflective atmosphere as nature prepares for the colder months ahead.

Average Daylight Hours in Aosta for October

The chart illustrates the variation in daylight duration in Aosta throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 6m10h 21m11h 56m13h 33m14h 56m15h 38m15h 16m14h 2m12h 29m10h 52m9h 27m8h 43m
Data source: Aosta daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Aosta

As autumn descends upon Aosta in October, the wind begins to whisper secrets of the change in seasons. With an average wind speed of 1.3 m/s (3 mph), the breezes are gentle, offering a delightful contrast to the often brisker gusts that accompany the chill of winter. This slight uptick from September's calm of 1.0 m/s (2 mph) hints at a transition, setting the stage for the colder months ahead. Interestingly, October’s wind speed mirrors that of November, creating a subtle consistency as nature prepares for its slumber. This season invites locals and visitors alike to savor the crisp air while enjoying the vibrant fall foliage, making it an ideal time for leisurely strolls through Aosta’s charming streets.

Average October Wind Speed in Aosta

The chart displays monthly wind speed patterns in Aosta, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.41.31.21.41.11.21.21.01.3 m/s1.31.5
Data source: Aosta October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Aosta Compares to Other Months

The weather in Aosta 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 Aosta and find detailed weather information for every month.

October and January present stark contrasts in weather conditions. In October, temperatures range from a minimum of -8°C (17°F) to a maximum of 15°C (60°F), with an average of 4°C (39°F). The month also experiences substantial precipitation, with 124 mm (4.9 in) falling over 13 days, and humidity sits at a relatively high 89%. In contrast, January sees much colder temperatures, with a minimum of -25°C (-13°F) and an average of -9°C (16°F), while the maximum only reaches 4°C (39°F). Although precipitation is slightly lower at 114 mm (4.5 in) over 10 days, humidity remains high at 91%. For a closer look at the conditions during this winter month, check out Aosta weather in January.

In comparing the weather of October and February, we see notable differences in temperature and precipitation patterns. October experiences milder temperatures, ranging from a minimum of -8°C (17°F) to a maximum of 15°C (60°F), with an average of 4°C (39°F). In contrast, February is much colder, featuring temperatures that can drop to a minimum of -22°C (-7°F) and an average of -6°C (22°F), with a peak of 8°C (47°F). Precipitation levels in October are higher, totaling 124 mm (4.9 in) over 13 days, compared to February’s 79 mm (3.1 in) over 12 days. Additionally, October's humidity is slightly higher at 89%, while February sits at 87%. For more detailed insights on February weather, you can check Aosta weather in February.

In comparing the weather between October and March, it's evident that October tends to be milder, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 15°C (60°F), averaging around 4°C (39°F). This month brings about 124 mm (4.9 in) of precipitation over 13 days and notable humidity at 89%. Conversely, March experiences colder conditions, with temperatures dipping as low as -25°C (-13°F) and only reaching a maximum of 10°C (50°F), averaging -4°C (25°F). The precipitation in March is slightly lower at 106 mm (4.2 in) but spreads across 15 days, accompanied by a humidity level of 84%. For more details, you can check out Aosta weather in March.

When comparing the weather in October and April, notable differences emerge. In October, temperatures range from a minimum of -8°C (17°F) to a maximum of 15°C (60°F), with an average of 4°C (39°F) and a higher humidity level at 89%. The month sees substantial precipitation of 124 mm (4.9 in) over approximately 13 days. In contrast, April experiences slightly colder temperatures, with a minimum of -16°C (4°F) and a maximum of 12°C (54°F), averaging at 0°C (32°F). Precipitation is lower, at 83 mm (3.3 in) over 11 days, and humidity is also slightly decreased at 83%. For a more detailed look at how Aosta's weather behaves in April, check out Aosta weather in April.

When comparing October and May weather, October tends to be milder with average temperatures around 4°C (39°F), while May sees a slightly higher average of 4°C (40°F) but can reach maximum highs of 18°C (65°F). October experiences more days of precipitation, with 13 rainy days totaling 124 mm (4.9 in) of rain, compared to May's 20 days of precipitation accumulating to 144 mm (5.7 in). Additionally, October has a higher humidity level at 89%, while May is comparatively drier with 78% humidity. For a more detailed overview, you can check this link: Aosta weather in May.

October and June present markedly different weather conditions. In June, temperatures range from a minimum of -3°C (27°F) to a comfortable maximum of 25°C (77°F), with an average of 10°C (50°F). Humidity is relatively lower at 75%, and precipitation occurs over 18 days, totaling 104 mm (4.1 in). In contrast, October sees much cooler temperatures, with a minimum of -8°C (17°F) and a maximum of 15°C (60°F), averaging just 4°C (39°F). Additionally, October is characterized by higher humidity levels at 89% and more substantial rainfall, with 124 mm (4.9 in) over 13 days. For more detailed information about June weather patterns, you can check Aosta weather in June.

In comparing the weather between October and July, October experiences significantly cooler temperatures, with average highs reaching only 15°C (60°F) compared to July's much warmer highs of 25°C (76°F). The minimum temperatures in October can plummet to -8°C (17°F), whereas July enjoys milder nights with temperatures only dropping to 1°C (34°F). Additionally, October has higher precipitation at 124 mm (4.9 in) over approximately 13 days, in contrast to July's 98 mm (3.9 in) spread across 16 days; this results in a wetter atmosphere during the fall. The humidity also notably differs, with October's humidity averaging 89%, making it feel much wetter compared to July's 72%. For those interested in more details, you can refer to Aosta weather in July.

In comparing the weather between October and August, we see a stark contrast in temperatures and humidity levels. October is much colder, with average temperatures hovering around 4°C (39°F), while August enjoys a milder climate with averages of 12°C (54°F). The maximum temperatures in October reach only up to 15°C (60°F), significantly lower than August's peak of 23°C (74°F). Additionally, October experiences higher humidity at 89%, compared to August's more comfortable 63%. Precipitation is also noteworthy, with October receiving 124 mm (4.9 in) over 13 days, whereas August sees slightly less at 101 mm (4.0 in) over 14 days. For more detailed information, you can check Aosta weather in August.

October's weather is notably cooler compared to September, with average temperatures dropping from 8°C (47°F) in September to just 4°C (39°F) in October. The maximum temperature in October reaches only 15°C (60°F), a significant decrease from September's warmer highs of 20°C (68°F). Additionally, October reports a substantial increase in precipitation, accumulating 124 mm (4.9 in) over 13 rainy days, while September experiences much less at 64 mm (2.5 in) across 14 days. The humidity also rises in October to 89%, compared to 73% in September, contributing to a more damp and chilly atmosphere. For more details on September's weather, you can refer to Aosta weather in September.

In October, the weather is relatively milder with average temperatures around 4°C (39°F), ranging from a minimum of -8°C (17°F) to a maximum of 15°C (60°F). The month experiences significant precipitation, totaling 124 mm (4.9 in) over approximately 13 days, with humidity levels high at 89%. In contrast, November brings a more frigid climate, with average temperatures dropping to -3°C (27°F), minimums reaching as low as -23°C (-9°F), and a maximum of 12°C (54°F). Despite slightly lower precipitation at 117 mm (4.6 in) over 15 days, humidity remains high at 90%. For a detailed look at what to expect, check out Aosta weather in November.

October and December present stark contrasts in weather patterns. In October, temperatures range from a chilly -8°C (17°F) at night to a pleasant 15°C (60°F) during the day, with an average of 4°C (39°F). The month experiences approximately 124 mm (4.9 in) of precipitation over 13 days, coupled with high humidity levels at 89%.

Conversely, December brings much colder conditions, with temperatures plunging to a minimum of -23°C (-9°F) and an average of -8°C (18°F). The maximum temperature reaches only 4°C (39°F), and precipitation increases to 165 mm (6.5 in) over 17 days, while humidity remains similar at 90%. For more insights on the conditions in December, check out Aosta weather in December.

Compare Aosta's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Aosta

As October settles over Aosta, the weather showcases a significant shift from the milder months of late summer, bringing cooler temperatures and increased moisture. The crisp air, characterized by an average of 4°C and occasional chills dipping to -8°C, signals the arrival of autumn’s embrace. With nearly half of the month experiencing precipitation, the landscape transforms under the blanket of clouds and the vibrant hues of foliage. The elevated humidity levels, peaking at 89%, enhance the chill in the air, making warm layers essential for outdoor adventures. For a deeper understanding of how Aosta's climate shapes its enchanting seasons, explore the detailed insights available at Aosta Climate.